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832b75ed | 1 | .ig |
e9583e0c | 2 | Copyright (C) 2002-10 Bruce Allen <smartmontools-support@lists.sourceforge.net> |
832b75ed | 3 | |
f4e463df | 4 | $Id: smartctl.8.in 3561 2012-06-05 19:49:31Z chrfranke $ |
832b75ed GG |
5 | |
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the Free | |
8 | Software Foundation; either version 2, or (at your option) any later | |
9 | version. | |
10 | ||
11 | You should have received a copy of the GNU General Public License (for | |
12 | example COPYING); if not, write to the Free Software Foundation, Inc., 675 | |
13 | Mass Ave, Cambridge, MA 02139, USA. | |
14 | ||
15 | This code was originally developed as a Senior Thesis by Michael Cornwell | |
16 | at the Concurrent Systems Laboratory (now part of the Storage Systems | |
17 | Research Center), Jack Baskin School of Engineering, University of | |
18 | California, Santa Cruz. http://ssrc.soe.ucsc.edu/ | |
19 | ||
20 | .. | |
e9583e0c | 21 | .TH SMARTCTL 8 CURRENT_SVN_DATE CURRENT_SVN_VERSION CURRENT_SVN_DATE |
832b75ed GG |
22 | .SH NAME |
23 | \fBsmartctl\fP \- Control and Monitor Utility for SMART Disks | |
24 | ||
25 | .SH SYNOPSIS | |
26 | .B smartctl [options] device | |
27 | ||
d008864d | 28 | .\" %IF NOT OS Windows |
832b75ed GG |
29 | .SH FULL PATH |
30 | .B /usr/local/sbin/smartctl | |
31 | ||
d008864d | 32 | .\" %ENDIF NOT OS Windows |
832b75ed | 33 | .SH PACKAGE VERSION |
e9583e0c | 34 | CURRENT_SVN_VERSION CURRENT_SVN_DATE CURRENT_SVN_REV |
832b75ed GG |
35 | |
36 | .SH DESCRIPTION | |
d008864d GI |
37 | .\" %IF NOT OS ALL |
38 | .\"! [This man page is generated for the OS_MAN_FILTER version of smartmontools. | |
39 | .\"! It does not contain info specific to other platforms.] | |
40 | .\"! .PP | |
41 | .\" %ENDIF NOT OS ALL | |
832b75ed GG |
42 | \fBsmartctl\fP controls the Self\-Monitoring, Analysis and Reporting |
43 | Technology (SMART) system built into many ATA\-3 and later ATA, IDE and | |
44 | SCSI\-3 hard drives. The purpose of SMART is to monitor the reliability | |
45 | of the hard drive and predict drive failures, and to carry out | |
46 | different types of drive self\-tests. This version of \fBsmartctl\fP | |
47 | is compatible with ATA/ATAPI\-7 and earlier standards (see REFERENCES | |
48 | below) | |
49 | ||
50 | \fBsmartctl\fP is a command line utility designed to perform SMART | |
51 | tasks such as printing the SMART self\-test and error logs, enabling | |
52 | and disabling SMART automatic testing, and initiating device | |
53 | self\-tests. Note: if the user issues a SMART command that is | |
54 | (apparently) not implemented by the device, \fBsmartctl\fP will print | |
55 | a warning message but issue the command anyway (see the \fB\-T, | |
56 | \-\-tolerance\fP option below). This should not cause problems: on | |
57 | most devices, unimplemented SMART commands issued to a drive are | |
58 | ignored and/or return an error. | |
59 | ||
60 | \fBsmartctl\fP also provides support for polling TapeAlert messages | |
61 | from SCSI tape drives and changers. | |
62 | ||
63 | The user must specify the device to be controlled or interrogated as | |
2127e193 GI |
64 | the final argument to \fBsmartctl\fP. The command set used by the device |
65 | is often derived from the device path but may need help with the \'\-d\' | |
66 | option (for more information see the section on "ATA, SCSI command sets | |
67 | and SAT" below). Device paths are as follows: | |
d008864d | 68 | .\" %IF OS Linux |
832b75ed | 69 | .IP \fBLINUX\fP: 9 |
2127e193 GI |
70 | Use the forms \fB"/dev/hd[a\-t]"\fP for IDE/ATA devices, and |
71 | \fB"/dev/sd[a\-z]"\fP for SCSI devices. For SCSI Tape Drives and | |
72 | Changers with TapeAlert support use the devices \fB"/dev/nst*"\fP and | |
73 | \fB"/dev/sg*"\fP. For SATA disks accessed with libata, use | |
74 | \fB"/dev/sd[a\-z]"\fP and append \fB"\-d ata"\fP. For disks behind | |
75 | 3ware controllers you may need \fB"/dev/sd[a\-z]"\fP or | |
cfbba5b9 | 76 | \fB"/dev/twe[0\-9]"\fP, \fB"/dev/twa[0\-9]"\fP or \fB"/dev/twl[0\-9]"\fP: see details |
2127e193 GI |
77 | below. For disks behind HighPoint RocketRAID controllers you may need |
78 | \fB"/dev/sd[a\-z]"\fP. For disks behind Areca SATA RAID controllers, | |
79 | you need \fB"/dev/sg[2\-9]"\fP (note that smartmontools interacts with | |
80 | the Areca controllers via a SCSI generic device which is different | |
81 | than the SCSI device used for reading and writing data)! | |
d008864d GI |
82 | .\" %ENDIF OS Linux |
83 | .\" %IF OS Darwin | |
832b75ed GG |
84 | .IP \fBDARWIN\fP: 9 |
85 | Use the forms \fB/dev/disk[0\-9]\fP or equivalently \fBdisk[0\-9]\fP or equivalently | |
86 | \fB/dev/rdisk[0\-9]\fP. Long forms are also available: please use \'\-h\' to see some | |
87 | examples. Note that there is currently no Darwin SCSI support. | |
f4e463df GI |
88 | |
89 | Use the OS X SAT SMART Driver to access SMART data on SAT capable USB and | |
90 | Firewire devices (see INSTALL file). | |
d008864d GI |
91 | .\" %ENDIF OS Darwin |
92 | .\" %IF OS FreeBSD | |
832b75ed GG |
93 | .IP \fBFREEBSD\fP: 9 |
94 | Use the forms \fB"/dev/ad[0\-9]+"\fP for IDE/ATA | |
cfbba5b9 GI |
95 | devices and \fB"/dev/da[0\-9]+"\fP or \fB"/dev/pass[0\-9]+"\fP for SCSI devices. |
96 | For SATA devices on AHCI bus use \fB"/dev/ada[0\-9]+"\fP format. | |
d008864d GI |
97 | .\" %ENDIF OS FreeBSD |
98 | .\" %IF OS NetBSD OpenBSD | |
832b75ed GG |
99 | .IP \fBNETBSD/OPENBSD\fP: 9 |
100 | Use the form \fB"/dev/wd[0\-9]+c"\fP for IDE/ATA | |
101 | devices. For SCSI disk and tape devices, use the device names | |
102 | \fB"/dev/sd[0\-9]+c"\fP and \fB"/dev/st[0\-9]+c"\fP respectively. | |
103 | Be sure to specify the correct "whole disk" partition letter for | |
104 | your architecture. | |
d008864d GI |
105 | .\" %ENDIF OS NetBSD OpenBSD |
106 | .\" %IF OS Solaris | |
832b75ed GG |
107 | .IP \fBSOLARIS\fP: 9 |
108 | Use the forms \fB"/dev/rdsk/c?t?d?s?"\fP for IDE/ATA and SCSI disk | |
109 | devices, and \fB"/dev/rmt/*"\fP for SCSI tape devices. | |
d008864d GI |
110 | .\" %ENDIF OS Solaris |
111 | .\" %IF OS Windows | |
a37e7145 GG |
112 | .IP \fBWINDOWS\ 9x/ME\fP: 9 |
113 | Use the forms \fB"/dev/hd[a\-d]"\fP for standard IDE/ATA devices | |
4d59bff9 GG |
114 | accessed via SMARTVSD.VXD, and \fB"/dev/hd[e\-h]"\fP for additional devices |
115 | accessed via a patched SMARTVSE.VXD (see INSTALL file for details). | |
ba59cff1 | 116 | Use the form \fB"/dev/scsi[0\-9][0\-f]"\fP for SCSI devices via an aspi dll |
a37e7145 | 117 | on ASPI adapter 0\-9, ID 0\-15. The prefix \fB"/dev/"\fP is optional. |
d008864d GI |
118 | .\" %ENDIF OS Windows |
119 | .\" %IF OS Windows Cygwin | |
cfbba5b9 | 120 | .IP \fBWINDOWS\ NT4/2000/XP/2003/Vista/Win7/2008\fP: 9 |
a37e7145 GG |
121 | Use the forms \fB"/dev/sd[a\-z]"\fP for IDE/(S)ATA and SCSI disks |
122 | "\\\\.\\PhysicalDrive[0\-25]" (where "a" maps to "0"). | |
123 | These disks can also be referred to as \fB"/dev/pd[0\-255]"\fP for | |
124 | "\\\\.\\PhysicalDrive[0\-255]". | |
125 | ATA disks can also be referred to as \fB"/dev/hd[a\-z]"\fP for | |
126 | "\\\\.\\PhysicalDrive[0\-25]". | |
127 | Use one the forms \fB"/dev/tape[0\-255]"\fP, \fB"/dev/st[0\-255]"\fP, | |
128 | or \fB"/dev/nst[0\-255]"\fP for SCSI tape drives "\\\\.\\Tape[0\-255]". | |
129 | ||
130 | Alternatively, drive letters \fB"X:"\fP or \fB"X:\\"\fP may be used to | |
2127e193 GI |
131 | specify the (\'basic\') disk behind a mounted partition. This does |
132 | not work with \'dynamic\' disks. | |
a37e7145 GG |
133 | |
134 | For disks behind 3ware 9000 controllers use \fB"/dev/sd[a\-z],N"\fP where | |
4d59bff9 | 135 | N specifies the disk number (3ware \'port\') behind the controller |
a37e7145 | 136 | providing the logical drive (\'unit\') specified by \fB"/dev/sd[a\-z]"\fP. |
9ebc753d GG |
137 | Alternatively, use \fB"/dev/tw_cli/cx/py"\fP for controller x, port y |
138 | to run the \'tw_cli\' tool and parse the output. This provides limited | |
a37e7145 | 139 | monitoring (\'\-i\', \'\-c\', \'\-A\' below) if SMART support is missing |
9ebc753d GG |
140 | in the driver. Use \fB"/dev/tw_cli/stdin"\fP or \fB"/dev/tw_cli/clip"\fP |
141 | to parse CLI or 3DM output from standard input or clipboard. | |
a37e7145 | 142 | The option \'\-d 3ware,N\' is not necessary on Windows. |
cfbba5b9 | 143 | |
f4e463df GI |
144 | For disks behind an Intel ICHxR controller with RST driver use |
145 | \fB"/dev/csmi[0\-9],N"\fP where N specifies the port behind the logical | |
146 | scsi controller "\\\\.\\Scsi[0\-9]:". | |
147 | ||
148 | [NEW EXPERIMENTAL SMARTCTL FEATURE] For SATA disks behind an Areca SATA | |
149 | or SAS controller use \fB"/dev/arcmsr[0\-9]"\fP, see \'\-d areca,N[/E]\' below. | |
150 | ||
832b75ed | 151 | The prefix \fB"/dev/"\fP is optional. |
d008864d GI |
152 | .\" %ENDIF OS Windows Cygwin |
153 | .\" %IF OS Cygwin | |
832b75ed | 154 | .IP \fBCYGWIN\fP: 9 |
cfbba5b9 | 155 | See "WINDOWS NT4/2000/XP/2003/Vista/Win7/2008" above. |
d008864d GI |
156 | .\" %ENDIF OS Cygwin |
157 | .\" %IF OS OS2 | |
832b75ed GG |
158 | .IP \fBOS/2,eComStation\fP: 9 |
159 | Use the form \fB"/dev/hd[a\-z]"\fP for IDE/ATA devices. | |
d008864d | 160 | .\" %ENDIF OS OS2 |
832b75ed | 161 | .PP |
a37e7145 GG |
162 | if \'\-\' is specified as the device path, \fBsmartctl\fP reads and |
163 | interprets it's own debug output from standard input. | |
164 | See \'\-r ataioctl\' below for details. | |
165 | .PP | |
832b75ed GG |
166 | Based on the device path, \fBsmartctl\fP will guess the device type |
167 | (ATA or SCSI). If necessary, the \'\-d\' option can be used to over\-ride | |
168 | this guess | |
169 | ||
170 | Note that the printed output of \fBsmartctl\fP displays most numerical | |
171 | values in base 10 (decimal), but some values are displayed in base 16 | |
4d59bff9 | 172 | (hexadecimal). To distinguish them, the base 16 values are always |
832b75ed GG |
173 | displayed with a leading \fB"0x"\fP, for example: "0xff". This man |
174 | page follows the same convention. | |
175 | ||
176 | .PP | |
177 | .SH OPTIONS | |
178 | .PP | |
179 | The options are grouped below into several categories. \fBsmartctl\fP | |
180 | will execute the corresponding commands in the order: INFORMATION, | |
181 | ENABLE/DISABLE, DISPLAY DATA, RUN/ABORT TESTS. | |
182 | ||
832b75ed GG |
183 | .TP |
184 | .B SHOW INFORMATION OPTIONS: | |
185 | .TP | |
186 | .B \-h, \-\-help, \-\-usage | |
187 | Prints a usage message to STDOUT and exits. | |
188 | .TP | |
189 | .B \-V, \-\-version, \-\-copyright, \-\-license | |
2127e193 GI |
190 | Prints version, copyright, license, home page and SVN revision |
191 | information for your copy of \fBsmartctl\fP to STDOUT and then exits. | |
192 | Please include this information if you are reporting bugs or problems. | |
832b75ed GG |
193 | .TP |
194 | .B \-i, \-\-info | |
195 | Prints the device model number, serial number, firmware version, and | |
196 | ATA Standard version/revision information. Says if the device | |
197 | supports SMART, and if so, whether SMART support is currently enabled | |
198 | or disabled. If the device supports Logical Block Address mode (LBA | |
199 | mode) print current user drive capacity in bytes. (If drive is has a | |
200 | user protected area reserved, or is "clipped", this may be smaller | |
201 | than the potential maximum drive capacity.) Indicates if the drive is | |
202 | in the smartmontools database (see \'\-v\' options below). If so, the | |
4d59bff9 GG |
203 | drive model family may also be printed. If \'\-n\' (see below) is |
204 | specified, the power mode of the drive is printed. | |
832b75ed GG |
205 | .TP |
206 | .B \-a, \-\-all | |
207 | Prints all SMART information about the disk, or TapeAlert information | |
208 | about the tape drive or changer. For ATA devices this is equivalent | |
209 | to | |
210 | .nf | |
a37e7145 | 211 | \'\-H \-i \-c \-A \-l error \-l selftest \-l selective\' |
832b75ed GG |
212 | .fi |
213 | and for SCSI, this is equivalent to | |
214 | .nf | |
215 | \'\-H \-i \-A \-l error \-l selftest\'. | |
216 | .fi | |
2127e193 GI |
217 | Note that for ATA disks this does \fBnot\fP enable the non-SMART options |
218 | and the SMART options which require support for 48-bit ATA commands. | |
219 | .TP | |
220 | .B \-x, \-\-xall | |
221 | Prints all SMART and non-SMART information about the device. For ATA | |
222 | devices this is equivalent to | |
223 | .nf | |
d008864d | 224 | \'\-H \-i \-g all \-c \-A \-f brief \-l xerror,error \-l xselftest,selftest |
a7e8ffec | 225 | \-l selective \-l directory \-l scttemp \-l scterc \-l sataphy\'. |
2127e193 GI |
226 | .fi |
227 | and for SCSI, this is equivalent to | |
228 | .nf | |
229 | \'\-H \-i \-A \-l error \-l selftest \-l background \-l sasphy\'. | |
230 | .fi | |
e9583e0c GI |
231 | .TP |
232 | .B \-\-scan | |
233 | Scans for devices and prints each device name, device type and protocol | |
234 | ([ATA] or [SCSI]) info. May be used in conjunction with \'\-d TYPE\' | |
235 | to restrict the scan to a specific TYPE. See also info about platform | |
236 | specific device scan and the \fBDEVICESCAN\fP directive on | |
237 | \fBsmartd\fP(8) man page. | |
238 | .TP | |
239 | .B \-\-scan\-open | |
240 | Same as \-\-scan, but also tries to open each device before printing | |
241 | device info. The device open may change the device type due | |
242 | to autodetection (see also \'\-d test\'). | |
832b75ed | 243 | |
cfbba5b9 GI |
244 | This option can be used to create a draft \fBsmartd.conf\fP file. |
245 | All options after \'\-\-\' are appended to each output line. | |
246 | For example: | |
247 | .nf | |
248 | smartctl --scan-open -- -a -W 4,45,50 -m admin@work > smartd.conf | |
249 | .fi | |
d008864d GI |
250 | .TP |
251 | .B \-g NAME, \-\-get=NAME | |
252 | Get non\-SMART device settings. See \'\-s, \-\-set\' below for further info. | |
cfbba5b9 | 253 | |
832b75ed GG |
254 | .TP |
255 | .B RUN\-TIME BEHAVIOR OPTIONS: | |
256 | .TP | |
257 | .B \-q TYPE, \-\-quietmode=TYPE | |
258 | Specifies that \fBsmartctl\fP should run in one of the two quiet modes | |
259 | described here. The valid arguments to this option are: | |
260 | ||
261 | .I errorsonly | |
262 | \- only print: For the \'\-l error\' option, if nonzero, the number | |
263 | of errors recorded in the SMART error log and the power\-on time when | |
264 | they occurred; For the \'\-l selftest\' option, errors recorded in the device | |
265 | self\-test log; For the \'\-H\' option, SMART "disk failing" status or device | |
266 | Attributes (pre\-failure or usage) which failed either now or in the | |
267 | past; For the \'\-A\' option, device Attributes (pre\-failure or usage) | |
268 | which failed either now or in the past. | |
269 | ||
270 | .I silent | |
271 | \- print no output. The only way to learn about what was found is to | |
272 | use the exit status of \fBsmartctl\fP (see RETURN VALUES below). | |
a37e7145 GG |
273 | |
274 | .I noserial | |
275 | \- Do not print the serial number of the device. | |
832b75ed GG |
276 | .TP |
277 | .B \-d TYPE, \-\-device=TYPE | |
cfbba5b9 GI |
278 | Specifies the type of the device. |
279 | The valid arguments to this option are: | |
4d59bff9 | 280 | |
cfbba5b9 GI |
281 | .I auto |
282 | - attempt to guess the device type from the device name or from | |
283 | controller type info provided by the operating system or from | |
284 | a matching USB ID entry in the drive database. | |
285 | This is the default. | |
286 | ||
287 | .I test | |
288 | - prints the guessed type, then opens the device and prints the | |
289 | (possibly changed) TYPE name and then exists without performing | |
290 | any further commands. | |
291 | ||
292 | .I ata | |
293 | \- the device type is ATA. This prevents | |
294 | \fBsmartctl\fP | |
295 | from issuing SCSI commands to an ATA device. | |
296 | ||
d008864d | 297 | .\" %IF NOT OS Darwin |
cfbba5b9 GI |
298 | .I scsi |
299 | \- the device type is SCSI. This prevents | |
300 | \fBsmartctl\fP | |
301 | from issuing ATA commands to a SCSI device. | |
302 | ||
d008864d | 303 | .I sat[,auto][,N] |
cfbba5b9 GI |
304 | \- the device type is SCSI to ATA Translation (SAT). |
305 | This is for ATA disks that have a SCSI to ATA Translation (SAT) Layer | |
306 | (SATL) between the disk and the operating system. | |
4d59bff9 | 307 | SAT defines two ATA PASS THROUGH SCSI commands, one 12 bytes long and |
cfbba5b9 | 308 | the other 16 bytes long. The default is the 16 byte variant which can be |
4d59bff9 | 309 | overridden with either \'\-d sat,12\' or \'\-d sat,16\'. |
832b75ed | 310 | |
f4e463df GI |
311 | [NEW EXPERIMENTAL SMARTCTL FEATURE] If \'-d sat,auto\' is specified, |
312 | device type SAT (for ATA/SATA disks) is | |
d008864d GI |
313 | only used if the SCSI INQUIRY data reports a SATL (VENDOR: "ATA "). |
314 | Otherwise device type SCSI (for SCSI/SAS disks) is used. | |
315 | ||
cfbba5b9 GI |
316 | .I usbcypress |
317 | \- this device type is for ATA disks that are behind a Cypress USB to PATA | |
318 | bridge. This will use the ATACB proprietary scsi pass through command. | |
319 | The default SCSI operation code is 0x24, but although it can be overridden | |
320 | with \'\-d usbcypress,0xN\', where N is the scsi operation code, | |
2127e193 GI |
321 | you're running the risk of damage to the device or filesystems on it. |
322 | ||
cfbba5b9 GI |
323 | .I usbjmicron |
324 | - this device type is for SATA disks that are behind a JMicron USB to | |
325 | PATA/SATA bridge. The 48-bit ATA commands (required e.g. for \'\-l xerror\', | |
326 | see below) do not work with all of these bridges and are therefore disabled by | |
327 | default. These commands can be enabled by \'\-d usbjmicron,x\'. | |
328 | If two disks are connected to a bridge with two ports, an error message is printed | |
329 | if no PORT is specified. | |
330 | The port can be specified by \'\-d usbjmicron[,x],PORT\' where PORT is 0 | |
331 | (master) or 1 (slave). This is not necessary if the device uses a port | |
332 | multiplier to connect multiple disks to one port. The disks appear under | |
333 | separate /dev/ice names then. | |
334 | CAUTION: Specifying \',x\' for a device which does not support it results | |
335 | in I/O errors and may disconnect the drive. The same applies if the specified | |
336 | PORT does not exist or is not connected to a disk. | |
337 | ||
338 | .I usbsunplus | |
339 | \- this device type is for SATA disks that are behind a SunplusIT USB to SATA | |
340 | bridge. | |
341 | ||
d008864d GI |
342 | .\" %ENDIF NOT OS Darwin |
343 | .\" %IF OS Linux | |
cfbba5b9 GI |
344 | .I marvell |
345 | \- [Linux only] interact with SATA disks behind Marvell chip-set | |
346 | controllers (using the Marvell rather than libata driver). | |
347 | ||
348 | .I megaraid,N | |
349 | \- [Linux only] the device consists of one or more SCSI/SAS disks connected | |
350 | to a MegaRAID controller. The non-negative integer N (in the range of 0 to | |
351 | 127 inclusive) denotes which disk on the controller is monitored. | |
352 | Use syntax such as: | |
2127e193 GI |
353 | .nf |
354 | \fBsmartctl \-a \-d megaraid,2 /dev/sda\fP | |
355 | .fi | |
356 | .nf | |
357 | \fBsmartctl \-a \-d megaraid,0 /dev/sdb\fP | |
358 | .fi | |
cfbba5b9 GI |
359 | This interface will also work for Dell PERC controllers. |
360 | The following /dev/XXX entry must exist: | |
2127e193 GI |
361 | .fi |
362 | For PERC2/3/4 controllers: \fB/dev/megadev0\fP | |
363 | .fi | |
364 | For PERC5/6 controllers: \fB/dev/megaraid_sas_ioctl_node\fP | |
365 | ||
d008864d GI |
366 | .\" %ENDIF OS Linux |
367 | .\" %IF OS FreeBSD Linux | |
cfbba5b9 GI |
368 | .I 3ware,N |
369 | \- [FreeBSD and Linux only] the device consists of one or more ATA disks | |
370 | connected to a 3ware RAID controller. The non-negative integer N | |
371 | (in the range from 0 to 127 inclusive) denotes which disk on the controller | |
372 | is monitored. | |
373 | Use syntax such as: | |
832b75ed GG |
374 | .nf |
375 | \fBsmartctl \-a \-d 3ware,2 /dev/sda\fP | |
376 | .fi | |
377 | .nf | |
378 | \fBsmartctl \-a \-d 3ware,0 /dev/twe0\fP | |
379 | .fi | |
380 | .nf | |
381 | \fBsmartctl \-a \-d 3ware,1 /dev/twa0\fP | |
382 | .fi | |
cfbba5b9 GI |
383 | .nf |
384 | \fBsmartctl \-a \-d 3ware,1 /dev/twl0\fP | |
385 | .fi | |
386 | The first two forms, which refer to devices /dev/sda\-z and /dev/twe0\-15, | |
387 | may be used with 3ware series 6000, 7000, and 8000 series controllers | |
388 | that use the 3x\-xxxx driver. | |
389 | \fBNote that the /dev/sda\-z form is deprecated\fP starting with | |
390 | the Linux 2.6 kernel series and may not be supported by the Linux | |
391 | kernel in the near future. The final form, which refers to devices | |
a37e7145 GG |
392 | /dev/twa0\-15, must be used with 3ware 9000 series controllers, which |
393 | use the 3w\-9xxx driver. | |
832b75ed | 394 | |
cfbba5b9 GI |
395 | The devices /dev/twl0\-15 must be used with the 3ware/LSI 9750 series |
396 | controllers which use the 3w-sas driver. | |
397 | ||
398 | Note that if the special character device nodes /dev/twl?, /dev/twa? | |
399 | and /dev/twe? do not exist, or exist with the incorrect major or minor | |
832b75ed | 400 | numbers, smartctl will recreate them on the fly. Typically /dev/twa0 |
a37e7145 | 401 | refers to the first 9000\-series controller, /dev/twa1 refers to the |
cfbba5b9 GI |
402 | second 9000 series controller, and so on. The /dev/twl0 devices refers |
403 | to the first 9750 series controller, /dev/twl1 resfers to the second | |
404 | 9750 series controller, and so on. Likewise /dev/twe0 refers to | |
405 | the first 6/7/8000\-series controller, /dev/twe1 refers to the second | |
832b75ed GG |
406 | 6/7/8000 series controller, and so on. |
407 | ||
408 | Note that for the 6/7/8000 controllers, \fBany\fP of the physical | |
409 | disks can be queried or examined using \fBany\fP of the 3ware's SCSI | |
410 | logical device /dev/sd? entries. Thus, if logical device /dev/sda is | |
411 | made up of two physical disks (3ware ports zero and one) and logical | |
412 | device /dev/sdb is made up of two other physical disks (3ware ports | |
413 | two and three) then you can examine the SMART data on \fBany\fP of the | |
414 | four physical disks using \fBeither\fP SCSI device /dev/sda \fBor\fP | |
415 | /dev/sdb. If you need to know which logical SCSI device a particular | |
416 | physical disk (3ware port) is associated with, use the dmesg or SYSLOG | |
417 | output to show which SCSI ID corresponds to a particular 3ware unit, | |
418 | and then use the 3ware CLI or 3dm tool to determine which ports | |
419 | (physical disks) correspond to particular 3ware units. | |
420 | ||
421 | If the value of N corresponds to a port that does \fBnot\fP exist on | |
422 | the 3ware controller, or to a port that does not physically have a | |
423 | disk attached to it, the behavior of \fBsmartctl\fP depends upon the | |
424 | specific controller model, firmware, Linux kernel and platform. In | |
425 | some cases you will get a warning message that the device does not | |
cfbba5b9 | 426 | exist. In other cases you will be presented with \'void\' data for a |
832b75ed GG |
427 | non\-existent device. |
428 | ||
429 | Note that if the /dev/sd? addressing form is used, then older 3w\-xxxx | |
430 | drivers do not pass the "Enable Autosave" | |
431 | (\'\fB\-S on\fP\') and "Enable Automatic Offline" (\'\fB\-o on\fP\') | |
432 | commands to the disk, and produce these types of harmless syslog error | |
433 | messages instead: "\fB3w\-xxxx: tw_ioctl(): Passthru size (123392) too | |
cfbba5b9 | 434 | big\fP". This can be fixed by upgrading to version 1.02.00.037 or |
832b75ed | 435 | later of the 3w\-xxxx driver, or by applying a patch to older |
cfbba5b9 | 436 | versions. Alternatively, use the character device /dev/twe0\-15 interface. |
832b75ed GG |
437 | |
438 | The selective self\-test functions (\'\-t select,A\-B\') are only supported | |
cfbba5b9 | 439 | using the character device interface /dev/twl0\-15, /dev/twa0\-15 and /dev/twe0\-15. |
832b75ed GG |
440 | The necessary WRITE LOG commands can not be passed through the SCSI |
441 | interface. | |
442 | ||
d008864d | 443 | .\" %ENDIF OS FreeBSD Linux |
f4e463df | 444 | .\" %IF OS FreeBSD Linux Windows Cygwin |
cfbba5b9 | 445 | .I areca,N |
f4e463df GI |
446 | \- [FreeBSD, Linux, Windows and Cygwin only] the device consists of one or more SATA disks |
447 | connected to an Areca SATA RAID controller. The positive integer N (in the range | |
448 | from 1 to 24 inclusive) denotes which disk on the controller is monitored. | |
449 | .\" %ENDIF OS FreeBSD Linux Windows Cygwin | |
d008864d GI |
450 | .\" %IF OS Linux |
451 | On Linux use syntax such as: | |
2127e193 GI |
452 | .nf |
453 | \fBsmartctl \-a \-d areca,2 /dev/sg2\fP | |
454 | .fi | |
455 | .nf | |
456 | \fBsmartctl \-a \-d areca,3 /dev/sg3\fP | |
457 | .fi | |
d008864d GI |
458 | .\" %ENDIF OS Linux |
459 | .\" %IF OS FreeBSD | |
460 | On FreeBSD use syntax such as: | |
461 | .nf | |
462 | \fBsmartctl \-a \-d areca,2 /dev/arcmsr1\fP | |
463 | .fi | |
464 | .nf | |
465 | \fBsmartctl \-a \-d areca,3 /dev/arcmsr2\fP | |
466 | .fi | |
467 | .\" %ENDIF OS FreeBSD | |
f4e463df GI |
468 | .\" %IF OS Windows Cygwin |
469 | [NEW EXPERIMENTAL SMARTCTL FEATURE] On Windows and Cygwin use syntax such as: | |
470 | .nf | |
471 | \fBsmartctl \-a \-d areca,2 /dev/arcmsr0\fP | |
472 | .fi | |
473 | .nf | |
474 | \fBsmartctl \-a \-d areca,3 /dev/arcmsr1\fP | |
475 | .fi | |
476 | .\" %ENDIF OS Windows Cygwin | |
477 | .\" %IF OS FreeBSD Linux Windows Cygwin | |
cfbba5b9 GI |
478 | The first line above addresses the second disk on the first Areca RAID controller. |
479 | The second line addresses the third disk on the second Areca RAID | |
d008864d | 480 | controller. |
f4e463df | 481 | .\" %ENDIF OS FreeBSD Linux Windows Cygwin |
d008864d | 482 | .\" %IF OS Linux |
f4e463df | 483 | To help identify the correct device on Linux, use the command: |
2127e193 GI |
484 | .nf |
485 | \fBcat /proc/scsi/sg/device_hdr /proc/scsi/sg/devices\fP | |
486 | .fi | |
487 | to show the SCSI generic devices (one per line, starting with | |
cfbba5b9 | 488 | /dev/sg0). The correct SCSI generic devices to address for |
2127e193 GI |
489 | smartmontools are the ones with the type field equal to 3. If the |
490 | incorrect device is addressed, please read the warning/error messages | |
491 | carefully. They should provide hints about what devices to use. | |
d008864d | 492 | .\" %ENDIF OS Linux |
f4e463df | 493 | .\" %IF OS FreeBSD Linux Windows Cygwin |
2127e193 GI |
494 | |
495 | Important: the Areca controller must have firmware version 1.46 or | |
cfbba5b9 | 496 | later. Lower-numbered firmware versions will give (harmless) SCSI |
2127e193 | 497 | error messages and no SMART information. |
4d59bff9 | 498 | |
f4e463df GI |
499 | .I areca,N/E |
500 | \- [FreeBSD, Linux, Windows and Cygwin only] [NEW EXPERIMENTAL SMARTCTL FEATURE] the | |
501 | device consists of one or more SATA disks connected to an Areca SAS RAID controller. | |
502 | The integer N (range 1 to 128) denotes the channel (slot) and E (range | |
503 | 1 to 8) denotes the enclosure. | |
504 | Important: This requires upcoming Areca SAS controller firmware version 1.51 or a | |
505 | recent beta version. | |
506 | ||
507 | .\" %ENDIF OS FreeBSD Linux Windows Cygwin | |
d008864d | 508 | .\" %IF OS FreeBSD Linux |
cfbba5b9 GI |
509 | .I cciss,N |
510 | \- [FreeBSD and Linux only] the device consists of one or more SCSI/SAS disks | |
511 | connected to a cciss RAID controller. The non-negative integer N (in the range | |
512 | from 0 to 15 inclusive) denotes which disk on the controller is monitored. | |
513 | ||
514 | If the controller firmware or driver provides a SAT Layer it may be possible | |
515 | to monitor also SATA disks by specifiying \'\-d sat+cciss,N\'. | |
516 | ||
517 | .I hpt,L/M/N | |
518 | \- [FreeBSD and Linux only] the device consists of one or more ATA disks | |
519 | connected to a HighPoint RocketRAID controller. The integer L is the | |
520 | controller id, the integer M is the channel number, and the integer N | |
521 | is the PMPort number if it is available. The allowed values of L are | |
d008864d | 522 | from 1 to 4 inclusive, M are from 1 to 16 inclusive and N from 1 to 4 |
cfbba5b9 GI |
523 | if PMPort available. And also these values are limited by the model |
524 | of the HighPoint RocketRAID controller. | |
525 | Use syntax such as: | |
d008864d GI |
526 | .\" %ENDIF OS FreeBSD Linux |
527 | .\" %IF OS Linux | |
4d59bff9 | 528 | .nf |
2127e193 GI |
529 | \fBsmartctl \-a \-d hpt,1/3 /dev/sda\fP (under Linux) |
530 | .fi | |
531 | .nf | |
532 | \fBsmartctl \-a \-d hpt,1/2/3 /dev/sda\fP (under Linux) | |
4d59bff9 | 533 | .fi |
d008864d GI |
534 | .\" %ENDIF OS Linux |
535 | .\" %IF OS FreeBSD | |
4d59bff9 | 536 | .nf |
2127e193 GI |
537 | \fBsmartctl \-a \-d hpt,1/3 /dev/hptrr\fP (under FreeBSD) |
538 | .fi | |
539 | .nf | |
540 | \fBsmartctl \-a \-d hpt,1/2/3 /dev/hptrr\fP (under FreeBSD) | |
4d59bff9 | 541 | .fi |
d008864d GI |
542 | .\" %ENDIF OS FreeBSD |
543 | .\" %IF OS FreeBSD Linux | |
a37e7145 | 544 | Note that the /dev/sda\-z form should be the device node which stands for |
2127e193 GI |
545 | the disks derived from the HighPoint RocketRAID controllers under Linux and |
546 | under FreeBSD, it is the character device which the driver registered (eg, | |
cfbba5b9 | 547 | /dev/hptrr, /dev/hptmv6). |
d008864d | 548 | .\" %ENDIF OS FreeBSD Linux |
832b75ed GG |
549 | .TP |
550 | .B \-T TYPE, \-\-tolerance=TYPE | |
2127e193 GI |
551 | [ATA only] Specifies how tolerant \fBsmartctl\fP should be of ATA and SMART |
552 | command failures. | |
832b75ed GG |
553 | |
554 | The behavior of \fBsmartctl\fP depends upon whether the command is | |
555 | "\fBoptional\fP" or "\fBmandatory\fP". Here "\fBmandatory\fP" means | |
556 | "required by the ATA/ATAPI\-5 Specification if the device implements | |
557 | the SMART command set" and "\fBoptional\fP" means "not required by the | |
558 | ATA/ATAPI\-5 Specification even if the device implements the SMART | |
559 | command set." The "\fBmandatory\fP" ATA and SMART commands are: (1) | |
560 | ATA IDENTIFY DEVICE, (2) SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE, (3) | |
561 | SMART ENABLE/DISABLE, and (4) SMART RETURN STATUS. | |
562 | ||
563 | The valid arguments to this option are: | |
564 | ||
565 | .I normal | |
566 | \- exit on failure of any \fBmandatory\fP SMART command, and ignore | |
567 | all failures of \fBoptional\fP SMART commands. This is the default. | |
568 | Note that on some devices, issuing unimplemented optional SMART | |
569 | commands doesn\'t cause an error. This can result in misleading | |
570 | \fBsmartctl\fP messages such as "Feature X not implemented", followed | |
571 | shortly by "Feature X: enabled". In most such cases, contrary to the | |
572 | final message, Feature X is \fBnot\fP enabled. | |
573 | ||
574 | .I conservative | |
575 | \- exit on failure of any \fBoptional\fP SMART command. | |
576 | ||
577 | .I permissive | |
578 | \- ignore failure(s) of \fBmandatory\fP SMART commands. This option | |
579 | may be given more than once. Each additional use of this option will | |
580 | cause one more additional failure to be ignored. Note that the use of | |
581 | this option can lead to messages like "Feature X not implemented", | |
582 | followed shortly by "Error: unable to enable Feature X". In a few | |
583 | such cases, contrary to the final message, Feature X \fBis\fP enabled. | |
584 | ||
585 | .I verypermissive | |
586 | \- equivalent to giving a large number of \'\-T permissive\' options: | |
587 | ignore failures of \fBany number\fP of \fBmandatory\fP SMART commands. | |
588 | Please see the note above. | |
832b75ed GG |
589 | .TP |
590 | .B \-b TYPE, \-\-badsum=TYPE | |
2127e193 GI |
591 | [ATA only] Specifies the action \fBsmartctl\fP should take if a checksum |
592 | error is detected in the: (1) Device Identity Structure, (2) SMART | |
593 | Self\-Test Log Structure, (3) SMART Attribute Value Structure, (4) SMART | |
832b75ed GG |
594 | Attribute Threshold Structure, or (5) ATA Error Log Structure. |
595 | ||
596 | The valid arguments to this option are: | |
597 | ||
598 | .I warn | |
599 | \- report the incorrect checksum but carry on in spite of it. This is the | |
600 | default. | |
601 | ||
602 | .I exit | |
603 | \- exit \fBsmartctl\fP. | |
604 | ||
605 | .I ignore | |
606 | \- continue silently without issuing a warning. | |
832b75ed GG |
607 | .TP |
608 | .B \-r TYPE, \-\-report=TYPE | |
609 | Intended primarily to help \fBsmartmontools\fP developers understand | |
610 | the behavior of \fBsmartmontools\fP on non\-conforming or poorly | |
611 | conforming hardware. This option reports details of \fBsmartctl\fP | |
612 | transactions with the device. The option can be used multiple times. | |
613 | When used just once, it shows a record of the ioctl() transactions | |
614 | with the device. When used more than once, the detail of these | |
615 | ioctl() transactions are reported in greater detail. The valid | |
616 | arguments to this option are: | |
617 | ||
618 | .I ioctl | |
619 | \- report all ioctl() transactions. | |
620 | ||
621 | .I ataioctl | |
622 | \- report only ioctl() transactions with ATA devices. | |
623 | ||
624 | .I scsiioctl | |
625 | \- report only ioctl() transactions with SCSI devices. Invoking this once | |
626 | shows the SCSI commands in hex and the corresponding status. Invoking | |
627 | it a second time adds a hex listing of the first 64 bytes of data send to, | |
628 | or received from the device. | |
629 | ||
630 | Any argument may include a positive integer to specify the level of detail | |
631 | that should be reported. The argument should be followed by a comma then | |
632 | the integer with no spaces. For example, | |
633 | .I ataioctl,2 | |
634 | The default | |
635 | level is 1, so \'\-r ataioctl,1\' and \'\-r ataioctl\' are equivalent. | |
636 | ||
a37e7145 GG |
637 | For testing purposes, the output of \'\-r ataioctl,2\' can later be parsed |
638 | by \fBsmartctl\fP itself if \'\-\' is used as device path argument. | |
639 | The ATA command input parameters, sector data and return values are | |
640 | reconstructed from the debug report read from stdin. | |
641 | Then \fBsmartctl\fP internally simulates an ATA device with the same | |
642 | behaviour. This is does not work for SCSI devices yet. | |
4d59bff9 GG |
643 | .TP |
644 | .B \-n POWERMODE, \-\-nocheck=POWERMODE | |
2127e193 GI |
645 | [ATA only] Specifies if \fBsmartctl\fP should exit before performing any |
646 | checks when the device is in a low\-power mode. It may be used to prevent | |
647 | a disk from being spun\-up by \fBsmartctl\fP. The power mode is ignored by | |
cfbba5b9 GI |
648 | default. A nonzero exit status is returned if the device is in one of the |
649 | specified low\-power modes (see RETURN VALUES below). | |
650 | ||
651 | Note: If this option is used it may also be necessary to specify the device | |
652 | type with the \'-d\' option. Otherwise the device may spin up due to | |
653 | commands issued during device type autodetection. | |
654 | ||
655 | The valid arguments to this option are: | |
4d59bff9 GG |
656 | |
657 | .I never | |
658 | \- check the device always, but print the power mode if \'\-i\' is | |
659 | specified. | |
660 | ||
661 | .I sleep | |
662 | \- check the device unless it is in SLEEP mode. | |
663 | ||
664 | .I standby | |
665 | \- check the device unless it is in SLEEP or STANDBY mode. In | |
666 | these modes most disks are not spinning, so if you want to prevent | |
667 | a disk from spinning up, this is probably what you want. | |
668 | ||
669 | .I idle | |
670 | \- check the device unless it is in SLEEP, STANDBY or IDLE mode. | |
671 | In the IDLE state, most disks are still spinning, so this is probably | |
672 | not what you want. | |
673 | ||
832b75ed GG |
674 | .TP |
675 | .B SMART FEATURE ENABLE/DISABLE COMMANDS: | |
676 | .IP | |
677 | .B Note: | |
678 | if multiple options are used to both enable and disable a | |
679 | feature, then | |
680 | .B both | |
681 | the enable and disable commands will be issued. The enable command | |
682 | will always be issued | |
683 | .B before | |
684 | the corresponding disable command. | |
685 | .TP | |
686 | .B \-s VALUE, \-\-smart=VALUE | |
687 | Enables or disables SMART on device. The valid arguments to | |
688 | this option are \fIon\fP and \fIoff\fP. Note that the command \'\-s on\' | |
2127e193 GI |
689 | (perhaps used with with the \'\-o on\' and \'\-S on\' options) should be |
690 | placed in a start\-up script for your machine, for example in rc.local or | |
691 | rc.sysinit. In principle the SMART feature settings are preserved over | |
832b75ed GG |
692 | power\-cycling, but it doesn\'t hurt to be sure. It is not necessary (or |
693 | useful) to enable SMART to see the TapeAlert messages. | |
694 | .TP | |
695 | .B \-o VALUE, \-\-offlineauto=VALUE | |
2127e193 GI |
696 | [ATA only] Enables or disables SMART automatic offline test, which scans the |
697 | drive every four hours for disk defects. This command can be given during | |
698 | normal system operation. The valid arguments to this option are \fIon\fP | |
832b75ed GG |
699 | and \fIoff\fP. |
700 | ||
701 | Note that the SMART automatic offline test command is listed as | |
702 | "Obsolete" in every version of the ATA and ATA/ATAPI Specifications. | |
703 | It was originally part of the SFF\-8035i Revision 2.0 specification, | |
704 | but was never part of any ATA specification. However it is | |
705 | implemented and used by many vendors. [Good documentation can be found | |
706 | in IBM\'s Official Published Disk Specifications. For example the IBM | |
707 | Travelstar 40GNX Hard Disk Drive Specifications (Revision 1.1, 22 | |
708 | April 2002, Publication # 1541, Document S07N\-7715\-02) page 164. You | |
709 | can also read the SFF\-8035i Specification \-\- see REFERENCES below.] | |
710 | You can tell if automatic offline testing is supported by seeing if | |
711 | this command enables and disables it, as indicated by the \'Auto | |
712 | Offline Data Collection\' part of the SMART capabilities report | |
713 | (displayed with \'\-c\'). | |
714 | ||
715 | SMART provides \fBthree\fP basic categories of testing. The | |
716 | \fBfirst\fP category, called "online" testing, has no effect on the | |
717 | performance of the device. It is turned on by the \'\-s on\' option. | |
718 | ||
719 | The \fBsecond\fP category of testing is called "offline" testing. This | |
720 | type of test can, in principle, degrade the device performance. The | |
721 | \'\-o on\' option causes this offline testing to be carried out, | |
722 | automatically, on a regular scheduled basis. Normally, the disk will | |
723 | suspend offline testing while disk accesses are taking place, and then | |
724 | automatically resume it when the disk would otherwise be idle, so in | |
725 | practice it has little effect. Note that a one\-time offline test can | |
726 | also be carried out immediately upon receipt of a user command. See | |
727 | the \'\-t offline\' option below, which causes a one\-time offline test | |
728 | to be carried out immediately. | |
729 | ||
730 | The choice (made by the SFF\-8035i and ATA specification authors) of | |
731 | the word \fItesting\fP for these first two categories is unfortunate, | |
732 | and often leads to confusion. In fact these first two categories of | |
733 | online and offline testing could have been more accurately described | |
734 | as online and offline \fBdata collection\fP. | |
735 | ||
736 | The results of this automatic or immediate offline testing (data | |
737 | collection) are reflected in the values of the SMART Attributes. | |
738 | Thus, if problems or errors are detected, the values of these | |
739 | Attributes will go below their failure thresholds; some types of | |
740 | errors may also appear in the SMART error log. These are visible with | |
741 | the \'\-A\' and \'\-l error\' options respectively. | |
742 | ||
743 | Some SMART attribute values are updated only during off\-line data | |
744 | collection activities; the rest are updated during normal operation of | |
745 | the device or during both normal operation and off\-line testing. The | |
746 | Attribute value table produced by the \'\-A\' option indicates this in | |
747 | the UPDATED column. Attributes of the first type are labeled | |
748 | "Offline" and Attributes of the second type are labeled "Always". | |
749 | ||
750 | The \fBthird\fP category of testing (and the \fIonly\fP category for | |
751 | which the word \'testing\' is really an appropriate choice) is "self" | |
752 | testing. This third type of test is only performed (immediately) when | |
753 | a command to run it is issued. The \'\-t\' and \'\-X\' options can be | |
754 | used to carry out and abort such self\-tests; please see below for | |
755 | further details. | |
756 | ||
757 | Any errors detected in the self testing will be shown in the | |
758 | SMART self\-test log, which can be examined using the \'\-l selftest\' | |
759 | option. | |
760 | ||
761 | \fBNote:\fP in this manual page, the word \fB"Test"\fP is used in | |
762 | connection with the second category just described, e.g. for the | |
763 | "offline" testing. The words \fB"Self\-test"\fP are used in | |
764 | connection with the third category. | |
765 | .TP | |
766 | .B \-S VALUE, \-\-saveauto=VALUE | |
e9583e0c | 767 | [ATA] Enables or disables SMART autosave of device vendor\-specific |
832b75ed GG |
768 | Attributes. The valid arguments to this option are \fIon\fP |
769 | and \fIoff\fP. Note that this feature is preserved across disk power | |
770 | cycles, so you should only need to issue it once. | |
771 | ||
e9583e0c GI |
772 | The ATA standard does not specify a method to check whether SMART |
773 | autosave is enabled. Unlike SCSI (below), smartctl is unable to print | |
774 | a warning if autosave is disabled. | |
775 | ||
776 | [SCSI] For SCSI devices this toggles the value of the Global Logging | |
777 | Target Save Disabled (GLTSD) bit in the Control Mode Page. Some disk | |
832b75ed GG |
778 | manufacturers set this bit by default. This prevents error counters, |
779 | power\-up hours and other useful data from being placed in non\-volatile | |
780 | storage, so these values may be reset to zero the next time the device | |
781 | is power\-cycled. If the GLTSD bit is set then \'smartctl \-a\' will | |
782 | issue a warning. Use \fIon\fP to clear the GLTSD bit and thus enable | |
783 | saving counters to non\-volatile storage. For extreme streaming\-video | |
784 | type applications you might consider using \fIoff\fP to set the GLTSD | |
785 | bit. | |
d008864d GI |
786 | .TP |
787 | .B \-g NAME, \-\-get=NAME, \-s NAME[,VALUE], \-\-set=NAME[,VALUE] | |
788 | [NEW EXPERIMENTAL SMARTCTL FEATURE] Gets/sets non\-SMART device settings. | |
789 | Note that the \'\-\-set\' option shares its short option \'\-s\' with | |
790 | \'\-\-smart\'. Valid arguments are: | |
791 | ||
792 | .I all | |
793 | \- Gets all values. This is equivalent to | |
794 | .nf | |
795 | \'-g aam -g apm -g lookahead -g security -g wcache\' | |
796 | .fi | |
797 | ||
798 | .I aam[,N|off] | |
799 | \- [ATA only] Gets/sets the Automatic Acoustic Management (AAM) feature | |
800 | (if supported). A value of 128 sets the most quiet (slowest) mode and 254 | |
801 | the fastest (loudest) mode, \'off\' disables AAM. Devices may support | |
802 | intermediate levels. Values below 128 are defined as vendor specific (0) | |
803 | or retired (1\-127). Note that the AAM feature was declared obsolete in | |
804 | ATA ACS-2 Revision 4a (Dec 2010). | |
805 | ||
806 | .I apm[,N|off] | |
807 | \- [ATA only] Gets/sets the Advanced Power Management (APM) feature on | |
808 | device (if supported). If a value between 1 and 254 is provided, it will | |
809 | attempt to enable APM and set the specified value, \'off\' disables APM. | |
810 | Note the actual behavior depends on the drive, for example some drives disable | |
811 | APM if their value is set above 128. Values below 128 are supposed to allow | |
812 | drive spindown, values 128 and above adjust only head-parking frequency, | |
813 | although the actual behavior defined is also vendor-specific. | |
814 | ||
815 | .I lookahead[,on|off] | |
816 | \- [ATA only] Gets/sets the read look-ahead feature (if supported). | |
817 | Read look-ahead is usually enabled by default. | |
818 | ||
819 | .I security | |
820 | \- [ATA only] Gets the status of ATA Security feature (if supported). | |
821 | If ATA Security is enabled an ATA user password is set. The drive will be | |
822 | locked on next reset then. | |
823 | ||
824 | .I security-freeze | |
825 | \- [ATA only] Sets ATA Security feature to frozen mode. This prevents that | |
826 | the drive accepts any security commands until next reset. Note that the | |
827 | frozen mode may already be set by BIOS or OS. | |
828 | ||
829 | .I standby,[N|off] | |
830 | \- [ATA only] Sets the standby (spindown) timer and places the drive in the | |
831 | IDLE mode. A value of 0 or \'off\' disables the standby timer. | |
832 | Values from 1 to 240 specify timeouts from 5 seconds to 20 minutes in 5 | |
833 | second increments. Values from 241 to 251 specify timeouts from 30 minutes | |
834 | to 330 minutes in 30 minute increments. Value 252 specifies 21 minutes. | |
835 | Value 253 specifies a vendor specific time between 8 and 12 hours. Value | |
836 | 255 specifies 21 minutes and 15 seconds. Some drives may use a vendor | |
837 | specific interpretation for the values. Note that there is no get option | |
838 | because ATA standards do not specify a method to read the standby timer. | |
839 | ||
840 | .I standby,now | |
841 | \- [ATA only] Places the drive in the STANDBY mode. This usually spins down | |
842 | the drive. The setting of the standby timer is not affected. | |
843 | ||
844 | .I wcache[,on|off] | |
845 | \- [ATA only] Gets/sets the volatile write cache feature (if supported). | |
846 | The write cache is usually enabled by default. | |
832b75ed GG |
847 | |
848 | .TP | |
849 | .B SMART READ AND DISPLAY DATA OPTIONS: | |
850 | .TP | |
851 | .B \-H, \-\-health | |
852 | Check: Ask the device to report its SMART health status or pending | |
853 | TapeAlert messages. SMART status is based on | |
854 | information that it has gathered from online and offline | |
855 | tests, which were used to determine/update its | |
856 | SMART vendor\-specific Attribute values. TapeAlert status is obtained | |
857 | by reading the TapeAlert log page. | |
858 | ||
859 | If the device reports failing health status, this means | |
860 | .B either | |
861 | that the device has already failed, | |
862 | .B or | |
863 | that it is predicting its own failure within the next 24 hours. If | |
864 | this happens, use the \'\-a\' option to get more information, and | |
1953ff6d | 865 | .B get your data off the disk and to someplace safe as soon as you can. |
832b75ed GG |
866 | .TP |
867 | .B \-c, \-\-capabilities | |
2127e193 GI |
868 | [ATA only] Prints only the generic SMART capabilities. These |
869 | show what SMART features are implemented and how the device will | |
832b75ed GG |
870 | respond to some of the different SMART commands. For example it |
871 | shows if the device logs errors, if it supports offline surface | |
872 | scanning, and so on. If the device can carry out self\-tests, this | |
873 | option also shows the estimated time required to run those tests. | |
874 | ||
875 | Note that the time required to run the Self\-tests (listed in minutes) | |
876 | are fixed. However the time required to run the Immediate Offline | |
877 | Test (listed in seconds) is variable. This means that if you issue a | |
878 | command to perform an Immediate Offline test with the \'\-t offline\' option, | |
879 | then the time may jump to a larger value and then count down as the | |
880 | Immediate Offline Test is carried out. Please see REFERENCES below | |
881 | for further information about the the flags and capabilities described | |
882 | by this option. | |
883 | .TP | |
884 | .B \-A, \-\-attributes | |
2127e193 GI |
885 | [ATA] Prints only the vendor specific SMART Attributes. The Attributes |
886 | are numbered from 1 to 253 and have specific names and ID numbers. For | |
832b75ed GG |
887 | example Attribute 12 is "power cycle count": how many times has the |
888 | disk been powered up. | |
889 | ||
890 | Each Attribute has a "Raw" value, printed under the heading | |
891 | "RAW_VALUE", and a "Normalized" value printed under the heading | |
892 | "VALUE". [Note: \fBsmartctl\fP prints these values in base\-10.] In | |
893 | the example just given, the "Raw Value" for Attribute 12 would be the | |
894 | actual number of times that the disk has been power\-cycled, for | |
895 | example 365 if the disk has been turned on once per day for exactly | |
896 | one year. Each vendor uses their own algorithm to convert this "Raw" | |
897 | value to a "Normalized" value in the range from 1 to 254. Please keep | |
898 | in mind that \fBsmartctl\fP only reports the different Attribute | |
899 | types, values, and thresholds as read from the device. It does | |
900 | \fBnot\fP carry out the conversion between "Raw" and "Normalized" | |
901 | values: this is done by the disk\'s firmware. | |
902 | ||
903 | The conversion from Raw value to a quantity with physical units is | |
904 | not specified by the SMART standard. In most cases, the values printed | |
905 | by \fBsmartctl\fP are sensible. For example the temperature Attribute | |
906 | generally has its raw value equal to the temperature in Celsius. | |
907 | However in some cases vendors use unusual conventions. For example | |
908 | the Hitachi disk on my laptop reports its power\-on hours in minutes, | |
909 | not hours. Some IBM disks track three temperatures rather than one, in | |
910 | their raw values. And so on. | |
911 | ||
912 | Each Attribute also has a Threshold value (whose range is 0 to 255) | |
913 | which is printed under the heading "THRESH". If the Normalized value | |
914 | is \fBless than or equal to\fP the Threshold value, then the Attribute | |
915 | is said to have failed. If the Attribute is a pre\-failure Attribute, | |
916 | then disk failure is imminent. | |
917 | ||
918 | Each Attribute also has a "Worst" value shown under the heading | |
919 | "WORST". This is the smallest (closest to failure) value that the | |
920 | disk has recorded at any time during its lifetime when SMART was | |
921 | enabled. [Note however that some vendors firmware may actually | |
922 | \fBincrease\fP the "Worst" value for some "rate\-type" Attributes.] | |
923 | ||
924 | The Attribute table printed out by \fBsmartctl\fP also shows the | |
925 | "TYPE" of the Attribute. Attributes are one of two possible types: | |
926 | Pre\-failure or Old age. Pre\-failure Attributes are ones which, if | |
927 | less than or equal to their threshold values, indicate pending disk | |
928 | failure. Old age, or usage Attributes, are ones which indicate | |
929 | end\-of\-product life from old\-age or normal aging and wearout, if | |
930 | the Attribute value is less than or equal to the threshold. \fBPlease | |
931 | note\fP: the fact that an Attribute is of type 'Pre\-fail' does | |
932 | \fBnot\fP mean that your disk is about to fail! It only has this | |
933 | meaning if the Attribute\'s current Normalized value is less than or | |
934 | equal to the threshold value. | |
935 | ||
936 | If the Attribute\'s current Normalized value is less than or equal to | |
937 | the threshold value, then the "WHEN_FAILED" column will display | |
938 | "FAILING_NOW". If not, but the worst recorded value is less than or | |
939 | equal to the threshold value, then this column will display | |
940 | "In_the_past". If the "WHEN_FAILED" column has no entry (indicated by | |
941 | a dash: \'\-\') then this Attribute is OK now (not failing) and has | |
942 | also never failed in the past. | |
943 | ||
944 | The table column labeled "UPDATED" shows if the SMART Attribute values | |
945 | are updated during both normal operation and off\-line testing, or | |
946 | only during offline testing. The former are labeled "Always" and the | |
947 | latter are labeled "Offline". | |
948 | ||
949 | So to summarize: the Raw Attribute values are the ones that might have | |
950 | a real physical interpretation, such as "Temperature Celsius", | |
951 | "Hours", or "Start\-Stop Cycles". Each manufacturer converts these, | |
952 | using their detailed knowledge of the disk\'s operations and failure | |
953 | modes, to Normalized Attribute values in the range 1\-254. The | |
954 | current and worst (lowest measured) of these Normalized Attribute | |
955 | values are stored on the disk, along with a Threshold value that the | |
956 | manufacturer has determined will indicate that the disk is going to | |
957 | fail, or that it has exceeded its design age or aging limit. | |
958 | \fBsmartctl\fP does \fBnot\fP calculate any of the Attribute values, | |
959 | thresholds, or types, it merely reports them from the SMART data on | |
960 | the device. | |
961 | ||
962 | Note that starting with ATA/ATAPI\-4, revision 4, the meaning of these | |
963 | Attribute fields has been made entirely vendor\-specific. However most | |
964 | ATA/ATAPI\-5 disks seem to respect their meaning, so we have retained | |
965 | the option of printing the Attribute values. | |
966 | ||
2127e193 | 967 | [SCSI] For SCSI devices the "attributes" are obtained from the temperature |
a37e7145 | 968 | and start\-stop cycle counter log pages. Certain vendor specific |
832b75ed GG |
969 | attributes are listed if recognised. The attributes are output in a |
970 | relatively free format (compared with ATA disk attributes). | |
971 | .TP | |
a7e8ffec | 972 | .B \-f FORMAT, \-\-format=FORMAT |
e165493d | 973 | [ATA only] Selects the output format of the attributes: |
a7e8ffec GI |
974 | |
975 | .I old | |
976 | \- Old smartctl format. This is the default unless the \'\-x\' option is | |
977 | specified. | |
978 | ||
979 | .I brief | |
980 | \- New format which fits into 80 colums (except in some rare cases). | |
981 | This format also decodes four additional attribute flags. | |
982 | This is the default if the '\-x\' option is specified. | |
e165493d GI |
983 | |
984 | .I hex,id | |
985 | \- Print all attribute IDs as hexadecimal numbers. | |
986 | ||
987 | .I hex,val | |
988 | \- Print all normalized values as hexadecimal numbers. | |
989 | ||
990 | .I hex | |
991 | \- Same as \'\-f hex,id \-f hex,val\'. | |
a7e8ffec | 992 | .TP |
832b75ed GG |
993 | .B \-l TYPE, \-\-log=TYPE |
994 | Prints either the SMART Error Log, the SMART Self\-Test Log, the SMART | |
4d59bff9 GG |
995 | Selective Self\-Test Log [ATA only], the Log Directory [ATA only], or |
996 | the Background Scan Results Log [SCSI only]. | |
832b75ed GG |
997 | The valid arguments to this option are: |
998 | ||
999 | .I error | |
2127e193 GI |
1000 | \- [ATA] prints the Summary SMART error log. SMART disks maintain a log |
1001 | of the most recent five non\-trivial errors. For each of these errors, the | |
832b75ed GG |
1002 | disk power\-on lifetime at which the error occurred is recorded, as is |
1003 | the device status (idle, standby, etc) at the time of the error. For | |
1004 | some common types of errors, the Error Register (ER) and Status | |
1005 | Register (SR) values are decoded and printed as text. The meanings of these | |
1006 | are: | |
1007 | .nf | |
1008 | \fBABRT\fP: Command \fBAB\fPo\fBRT\fPed | |
1009 | \fBAMNF\fP: \fBA\fPddress \fBM\fPark \fBN\fPot \fBF\fPound | |
1010 | \fBCCTO\fP: \fBC\fPommand \fBC\fPompletion \fBT\fPimed \fBO\fPut | |
1011 | \fBEOM\fP: \fBE\fPnd \fBO\fPf \fBM\fPedia | |
1012 | \fBICRC\fP: \fBI\fPnterface \fBC\fPyclic \fBR\fPedundancy \fBC\fPode (CRC) error | |
1013 | \fBIDNF\fP: \fBID\fPentity \fBN\fPot \fBF\fPound | |
1014 | \fBILI\fP: (packet command\-set specific) | |
1015 | \fBMC\fP: \fBM\fPedia \fBC\fPhanged | |
1016 | \fBMCR\fP: \fBM\fPedia \fBC\fPhange \fBR\fPequest | |
1017 | \fBNM\fP: \fBN\fPo \fBM\fPedia | |
1018 | \fBobs\fP: \fBobs\fPolete | |
1019 | \fBTK0NF\fP: \fBT\fPrac\fBK 0 N\fPot \fBF\fPound | |
1020 | \fBUNC\fP: \fBUNC\fPorrectable Error in Data | |
1021 | \fBWP\fP: Media is \fBW\fPrite \fBP\fProtected | |
1022 | .fi | |
1023 | In addition, up to the last five commands that preceded the error are | |
1024 | listed, along with a timestamp measured from the start of the | |
1025 | corresponding power cycle. This is displayed in the form | |
1026 | Dd+HH:MM:SS.msec where D is the number of days, HH is hours, MM is | |
1027 | minutes, SS is seconds and msec is milliseconds. [Note: this time | |
1028 | stamp wraps after 2^32 milliseconds, or 49 days 17 hours 2 minutes and | |
1029 | 47.296 seconds.] The key ATA disk registers are also recorded in the | |
1030 | log. The final column of the error log is a text\-string description | |
1031 | of the ATA command defined by the Command Register (CR) and Feature | |
1032 | Register (FR) values. Commands that are obsolete in the most current | |
1033 | (ATA\-7) spec are listed like this: \fBREAD LONG (w/ retry) [OBS\-4]\fP, | |
1034 | indicating that the command became obsolete with or in the ATA\-4 | |
1035 | specification. Similarly, the notation \fB[RET\-\fP\fIN\fP\fB]\fP is | |
1036 | used to indicate that a command was retired in the ATA\-\fIN\fP | |
1037 | specification. Some commands are not defined in any version of the | |
1038 | ATA specification but are in common use nonetheless; these are marked | |
1039 | \fB[NS]\fP, meaning non\-standard. | |
1040 | ||
1041 | The ATA Specification (ATA\-5 Revision 1c, Section 8.41.6.8.2) says: | |
1042 | \fB"Error log structures shall include UNC errors, IDNF errors for | |
1043 | which the address requested was valid, servo errors, write fault | |
1044 | errors, etc. Error log data structures shall not include errors | |
1045 | attributed to the receipt of faulty commands such as command codes not | |
1046 | implemented by the device or requests with invalid parameters or | |
1047 | invalid addresses."\fP The definitions of these terms are: | |
1048 | .br | |
1049 | \fBUNC\fP (\fBUNC\fPorrectable): data is uncorrectable. This refers | |
1050 | to data which has been read from the disk, but for which the Error | |
1051 | Checking and Correction (ECC) codes are inconsistent. In effect, this | |
1052 | means that the data can not be read. | |
1053 | .br | |
1054 | \fBIDNF\fP (\fBID N\fPot \fBF\fPound): user\-accessible address could | |
1055 | not be found. For READ LOG type commands, \fBIDNF\fP can also indicate | |
1056 | that a device data log structure checksum was incorrect. | |
1057 | ||
1058 | If the command that caused the error was a READ or WRITE command, then | |
1059 | the Logical Block Address (LBA) at which the error occurred will be | |
1060 | printed in base 10 and base 16. The LBA is a linear address, which | |
1061 | counts 512\-byte sectors on the disk, starting from zero. (Because of | |
1062 | the limitations of the SMART error log, if the LBA is greater than | |
1063 | 0xfffffff, then either no error log entry will be made, or the error | |
1064 | log entry will have an incorrect LBA. This may happen for drives with | |
1065 | a capacity greater than 128 GiB or 137 GB.) On Linux systems the | |
1066 | smartmontools web page has instructions about how to convert the LBA | |
1067 | address to the name of the disk file containing the erroneous disk | |
1068 | sector. | |
1069 | ||
1070 | Please note that some manufacturers \fBignore\fP the ATA | |
1071 | specifications, and make entries in the error log if the device | |
1072 | receives a command which is not implemented or is not valid. | |
1073 | ||
2127e193 GI |
1074 | .I error |
1075 | \- [SCSI] prints the error counter log pages for reads, write and verifies. | |
832b75ed GG |
1076 | The verify row is only output if it has an element other than zero. |
1077 | ||
2127e193 | 1078 | .I xerror[,NUM][,error] |
cfbba5b9 GI |
1079 | \- [ATA only] prints the Extended Comprehensive SMART error log |
1080 | (General Purpose Log address 0x03). Unlike the Summary SMART error | |
1081 | log (see \'\-l error\' above), it provides sufficient space to log | |
1082 | the contents of the 48-bit LBA register set introduced with ATA-6. | |
1083 | It also supports logs with more than one sector. Each sector holds | |
1084 | up to 4 log entries. The actual number of log sectors is vendor | |
1085 | specific, typical values for HDD are 2 (Samsung), 5 (Seagate) or | |
1086 | 6 (WD). Some recent SSD devices have much larger error logs. | |
2127e193 GI |
1087 | |
1088 | Only the 8 most recent error log entries are printed by default. | |
1089 | This number can be changed by the optional parameter NUM. | |
1090 | ||
1091 | If ',error' is appended and the Extended Comprehensive SMART error | |
1092 | log is not supported, the Summary SMART self-test log is printed. | |
1093 | ||
f4e463df GI |
1094 | Please note that recent drives may report errors only in the Extended |
1095 | Comprehensive SMART error log. The Summary SMART error log may be reported | |
1096 | as supported but is always empty then. | |
2127e193 | 1097 | |
832b75ed | 1098 | .I selftest |
2127e193 GI |
1099 | \- [ATA] prints the SMART self\-test log. The disk maintains a self\-test |
1100 | log showing the results of the self tests, which can be run using the | |
832b75ed GG |
1101 | \'\-t\' option described below. For each of the most recent |
1102 | twenty\-one self\-tests, the log shows the type of test (short or | |
1103 | extended, off\-line or captive) and the final status of the test. If | |
1104 | the test did not complete successfully, then the percentage of the | |
1105 | test remaining is shown. The time at which the test took place, | |
eb07ddf2 GI |
1106 | measured in hours of disk lifetime, is also printed. [Note: this time |
1107 | stamp wraps after 2^16 hours, or 2730 days and 16 hours, or about 7.5 | |
1108 | years.] If any errors were detected, the Logical Block Address (LBA) | |
1109 | of the first error is printed in decimal notation. On Linux systems the | |
1110 | smartmontools web page has instructions about how to convert this LBA | |
1111 | address to the name of the disk file containing the erroneous block. | |
832b75ed | 1112 | |
2127e193 GI |
1113 | .I selftest |
1114 | \- [SCSI] the self\-test log for a SCSI device has a slightly different | |
1115 | format than for an ATA device. For each of the most recent twenty | |
832b75ed GG |
1116 | self\-tests, it shows the type of test and the status (final or in |
1117 | progress) of the test. SCSI standards use the terms "foreground" and | |
1118 | "background" (rather than ATA\'s corresponding "captive" and | |
1119 | "off\-line") and "short" and "long" (rather than ATA\'s corresponding | |
1120 | "short" and "extended") to describe the type of the test. The printed | |
1121 | segment number is only relevant when a test fails in the third or | |
1122 | later test segment. It identifies the test that failed and consists | |
1123 | of either the number of the segment that failed during the test, or | |
1124 | the number of the test that failed and the number of the segment in | |
1125 | which the test was run, using a vendor\-specific method of putting both | |
1126 | numbers into a single byte. The Logical Block Address (LBA) of the | |
1127 | first error is printed in hexadecimal notation. On Linux systems the | |
1128 | smartmontools web page has instructions about how to convert this LBA | |
1129 | address to the name of the disk file containing the erroneous block. | |
1130 | If provided, the SCSI Sense Key (SK), Additional Sense Code (ASC) and | |
1131 | Additional Sense Code Qualifier (ASQ) are also printed. The self tests | |
1132 | can be run using the \'\-t\' option described below (using the ATA | |
1133 | test terminology). | |
1134 | ||
2127e193 | 1135 | .I xselftest[,NUM][,selftest] |
cfbba5b9 GI |
1136 | \- [ATA only] prints the Extended SMART self\-test log (General Purpose |
1137 | Log address 0x07). Unlike the SMART self\-test log (see \'\-l selftest\' | |
1138 | above), it supports 48-bit LBA and logs with more than one sector. | |
1139 | Each sector holds up to 19 log entries. The actual number of log sectors | |
1140 | is vendor specific, typical values are 1 (Seagate) or 2 (Samsung). | |
2127e193 GI |
1141 | |
1142 | Only the 25 most recent log entries are printed by default. This number | |
1143 | can be changed by the optional parameter NUM. | |
1144 | ||
1145 | If ',selftest' is appended and the Extended SMART self-test log is not | |
1146 | supported, the old SMART self-test log is printed. | |
1147 | ||
1148 | .I selective | |
1149 | \- [ATA only] Please see the \'\-t select\' option below for a | |
832b75ed GG |
1150 | description of selective self\-tests. The selective self\-test log |
1151 | shows the start/end Logical Block Addresses (LBA) of each of the five | |
1152 | test spans, and their current test status. If the span is being | |
1153 | tested or the remainder of the disk is being read\-scanned, the | |
1154 | current 65536\-sector block of LBAs being tested is also displayed. | |
1155 | The selective self\-test log also shows if a read\-scan of the | |
1156 | remainder of the disk will be carried out after the selective | |
1157 | self\-test has completed (see \'\-t afterselect\' option) and the time | |
1158 | delay before restarting this read\-scan if it is interrupted (see | |
1159 | \'\-t pending\' option). This is a new smartmontools feature; please | |
1160 | report unusual or incorrect behavior to the smartmontools\-support | |
1161 | mailing list. | |
1162 | ||
2127e193 GI |
1163 | .I directory[,gs] |
1164 | \- [ATA only] if the device supports the General Purpose Logging feature | |
1165 | set (ATA\-6 and above) then this prints the Log Directory (the log at | |
832b75ed GG |
1166 | address 0). The Log Directory shows what logs are available and their |
1167 | length in sectors (512 bytes). The contents of the logs at address 1 | |
1168 | [Summary SMART error log] and at address 6 [SMART self\-test log] may | |
1169 | be printed using the previously\-described | |
1170 | .I error | |
1171 | and | |
1172 | .I selftest | |
2127e193 GI |
1173 | arguments to this option. |
1174 | If your version of smartctl supports 48-bit ATA commands, both the | |
1175 | General Purpose Log (GPL) and SMART Log (SL) directories are printed in | |
1176 | one combined table. The output can be restricted to the GPL directory or | |
1177 | SL directory by \'\-l directory,q\' or \'\-l directory,s\' respectively. | |
1178 | ||
1179 | .I background | |
1180 | \- [SCSI only] the background scan results log outputs information derived | |
1181 | from Background Media Scans (BMS) done after power up and/or periodocally | |
1182 | (e.g. every 24 hours) on recent SCSI disks. If supported, the BMS status | |
4d59bff9 GG |
1183 | is output first, indicating whether a background scan is currently |
1184 | underway (and if so a progress percentage), the amount of time the disk | |
1185 | has been powered up and the number of scans already completed. Then there | |
1186 | is a header and a line for each background scan "event". These will | |
1187 | typically be either recovered or unrecoverable errors. That latter group | |
1188 | may need some attention. There is a description of the background scan | |
1189 | mechansim in section 4.18 of SBC\-3 revision 6 (see www.t10.org ). | |
1190 | ||
2127e193 GI |
1191 | .I scttemp, scttempsts, scttemphist |
1192 | \- [ATA only] prints the disk temperature information provided by the | |
1193 | SMART Command Transport (SCT) commands. | |
a37e7145 GG |
1194 | The option \'scttempsts\' prints current temperature and temperature |
1195 | ranges returned by the SCT Status command, \'scttemphist\' prints | |
1196 | temperature limits and the temperature history table returned by | |
1197 | the SCT Data Table command, and \'scttemp\' prints both. | |
1198 | The temperature values are preserved across power cycles. | |
d008864d GI |
1199 | The logging interval can be configured with the |
1200 | \'\-l scttempint,N[,p]\' option, see below. | |
1201 | The SCT commands were introduced in ATA\-8 ACS and were also | |
1202 | supported by in many ATA\-7 disks. | |
1203 | ||
1204 | .I scttempint,N[,p] | |
1205 | \- [ATA only] clears the SCT temperature history table and sets the | |
1206 | time interval for temperature logging to N minutes. | |
1207 | If \',p\' is specified, the setting is preserved across power cycles. | |
1208 | Otherwise, the setting is volatile and will be reverted to the last | |
1209 | non-volatile setting by the next hard reset. The default interval | |
1210 | is vendor specific, typical values are 1, 2, or 5 minutes. | |
a37e7145 | 1211 | |
7f0798ef | 1212 | .I scterc[,READTIME,WRITETIME] |
d008864d GI |
1213 | \- [ATA only] prints values and descriptions of the SCT Error Recovery |
1214 | Control settings. These are equivalent to TLER (as used by Western | |
1215 | Digital), CCTL (as used by Samsung and Hitachi) and ERC (as used by | |
1216 | Seagate). READTIME and WRITETIME arguments (deciseconds) set the | |
1217 | specified values. Values of 0 disable the feature, other values less | |
1218 | than 65 are probably not supported. For RAID configurations, this is | |
1219 | typically set to 70,70 deciseconds. | |
1220 | ||
1221 | .I devstat[,PAGE] | |
7f0798ef | 1222 | \- [ATA only] [NEW EXPERIMENTAL SMARTCTL FEATURE] prints values |
d008864d GI |
1223 | and descriptions of the ATA Device Statistics log pages |
1224 | (General Purpose Log address 0x04). If no PAGE number is specified, | |
1225 | entries from all supported pages are printed. If PAGE 0 is specified, | |
1226 | the list of supported pages is printed. Device Statistics was | |
1227 | introduced in ATA\-8 ACS and is only supported by some recent devices | |
f4e463df GI |
1228 | (e.g. Hitachi 7K3000, Intel 320, 330 and 710 Series SSDs, Crucial/Micron |
1229 | m4 SSDs). | |
7f0798ef | 1230 | |
2127e193 | 1231 | .I sataphy[,reset] |
cfbba5b9 GI |
1232 | \- [SATA only] prints values and descriptions of the SATA Phy Event |
1233 | Counters (General Purpose Log address 0x11). If \'\-l sataphy,reset\' | |
1234 | is specified, all counters are reset after reading the values. | |
2127e193 GI |
1235 | |
1236 | .I sasphy[,reset] | |
cfbba5b9 GI |
1237 | \- [SAS (SCSI) only] prints values and descriptions of the SAS (SSP) |
1238 | Protocol Specific log page (log page 0x18). If \'\-l sasphy,reset\' | |
1239 | is specified, all counters are reset after reading the values. | |
2127e193 GI |
1240 | |
1241 | .I gplog,ADDR[,FIRST[\-LAST|+SIZE]] | |
cfbba5b9 GI |
1242 | \- [ATA only] prints a hex dump of any log accessible via General |
1243 | Purpose Logging (GPL) feature. The log address ADDR is the hex address | |
1244 | listed in the log directory (see \'\-l directory\' above). | |
1245 | The range of log sectors (pages) can be specified by decimal values | |
1246 | FIRST\-LAST or FIRST+SIZE. FIRST defaults to 0, SIZE defaults to 1. | |
1247 | LAST can be set to \'max\' to specify the last page of the log. | |
2127e193 GI |
1248 | |
1249 | .I smartlog,ADDR[,FIRST[\-LAST|+SIZE]] | |
cfbba5b9 GI |
1250 | \- [ATA only] prints a hex dump of any log accessible via SMART Read |
1251 | Log command. See \'\-l gplog,...\' above for parameter syntax. | |
2127e193 GI |
1252 | |
1253 | For example, all these commands: | |
1254 | .nf | |
1255 | smartctl \-l gplog,0x80,10-15 /dev/sda | |
1256 | smartctl \-l gplog,0x80,10+6 /dev/sda | |
1257 | smartctl \-l smartlog,0x80,10-15 /dev/sda | |
1258 | .fi | |
1259 | print pages 10-15 of log 0x80 (first host vendor specific log). | |
1260 | ||
1261 | The hex dump format is compatible with the \'xxd \-r\' command. | |
1262 | This command: | |
1263 | .nf | |
1264 | smartctl \-l gplog,0x11 /dev/sda | grep ^0 | xxd -r >log.bin | |
1265 | .fi | |
1266 | writes a binary representation of the one sector log 0x11 | |
1267 | (SATA Phy Event Counters) to file log.bin. | |
d008864d GI |
1268 | |
1269 | .I ssd | |
1270 | \- [ATA] prints the Solid State Device Statistics log page. | |
1271 | This has the same effect as \'\-l devstat,7\', see above. | |
1272 | ||
1273 | .I ssd | |
1274 | \- [SCSI] prints the Solid State Media percentage used endurance | |
1275 | indicator. A value of 0 indicates as new condition while 100 | |
1276 | indicates the device is at the end of its lifetime as projected by the | |
1277 | manufacturer. The value may reach 255. | |
832b75ed | 1278 | .TP |
a23d5117 GI |
1279 | .B \-v ID,FORMAT[:BYTEORDER][,NAME], \-\-vendorattribute=ID,FORMAT[:BYTEORDER][,NAME] |
1280 | [ATA only] Sets a vendor\-specific raw value print FORMAT, an optional | |
1281 | BYTEORDER and an optional NAME for Attribute ID. | |
bed94269 | 1282 | This option may be used multiple times. |
832b75ed | 1283 | |
bed94269 | 1284 | The Attribute ID can be in the range 1 to 255. If \'N\' is specified as |
a23d5117 GI |
1285 | ID, the settings for all Attributes are changed. |
1286 | ||
1287 | The optional BYTEORDER consists of 1 to 8 characters from the | |
1288 | set \'012345rvwz\'. The characters \'0\' to \'5\' select the byte 0 | |
1289 | to 5 from the 48\-bit raw value, \'r\' selects the reserved byte of | |
1290 | the attribute data block, \'v\' selects the normalized value, \'w\' | |
1291 | selects the worst value and \'z\' inserts a zero byte. | |
cfbba5b9 GI |
1292 | The default BYTEORDER is \'543210\' for all 48\-bit formats, \'r543210\' |
1293 | for the 54\-bit formats, and \'543210wv\' for the 64\-bit formats. | |
a23d5117 GI |
1294 | For example, \'\-v 5,raw48:012345\' prints the raw value of |
1295 | attribute 5 with big endian instead of little endian | |
1296 | byte ordering. | |
1297 | ||
d008864d GI |
1298 | The NAME is a string of letters, digits and underscore. Its length should |
1299 | not exceed 23 characters. The \'\-P showall\' option reports an error if | |
1300 | this is the case. | |
bed94269 GI |
1301 | |
1302 | .I \-v help | |
832b75ed GG |
1303 | \- Prints (to STDOUT) a list of all valid arguments to this option, |
1304 | then exits. | |
1305 | ||
bed94269 GI |
1306 | Valid arguments for FORMAT are: |
1307 | ||
1308 | .I raw8 | |
1309 | \- Print the Raw value as six 8\-bit unsigned base\-10 integers. | |
1310 | This may be useful for decoding the meaning of the Raw value. | |
1311 | ||
1312 | .I raw16 | |
1313 | \- Print the Raw value as three 16\-bit unsigned base\-10 integers. | |
1314 | This may be useful for decoding the meaning of the Raw value. | |
1315 | ||
1316 | .I raw48 | |
1317 | \- Print the Raw value as a 48\-bit unsigned base\-10 integer. | |
1318 | This is the default for most attributes. | |
1319 | ||
1320 | .I hex48 | |
1321 | \- Print the Raw value as a 12 digit hexadecimal number. | |
1322 | This may be useful for decoding the meaning of the Raw value. | |
1323 | ||
e165493d GI |
1324 | .I raw56 |
1325 | \- Print the Raw value as a 54\-bit unsigned base\-10 integer. | |
1326 | This includes the reserved byte which follows the 48\-bit raw value. | |
1327 | ||
1328 | .I hex56 | |
1329 | \- Print the Raw value as a 14 digit hexadecimal number. | |
1330 | This includes the reserved byte which follows the 48\-bit raw value. | |
1331 | ||
bed94269 GI |
1332 | .I raw64 |
1333 | \- Print the Raw value as a 64\-bit unsigned base\-10 integer. | |
1334 | This includes two bytes from the normalized and worst attribute value. | |
e165493d | 1335 | This raw format is used by some SSD devices with Indilinx controller. |
bed94269 GI |
1336 | |
1337 | .I hex64 | |
1338 | \- Print the Raw value as a 16 digit hexadecimal number. | |
1339 | This includes two bytes from the normalized and worst attribute value. | |
e165493d | 1340 | This raw format is used by some SSD devices with Indilinx controller. |
bed94269 GI |
1341 | |
1342 | .I min2hour | |
1343 | \- Raw Attribute is power\-on time in minutes. Its raw value | |
832b75ed GG |
1344 | will be displayed in the form "Xh+Ym". Here X is hours, and Y is |
1345 | minutes in the range 0\-59 inclusive. Y is always printed with two | |
1346 | digits, for example "06" or "31" or "00". | |
1347 | ||
bed94269 GI |
1348 | .I sec2hour |
1349 | \- Raw Attribute is power\-on time in seconds. Its raw value | |
832b75ed GG |
1350 | will be displayed in the form "Xh+Ym+Zs". Here X is hours, Y is |
1351 | minutes in the range 0\-59 inclusive, and Z is seconds in the range | |
1352 | 0\-59 inclusive. Y and Z are always printed with two digits, for | |
1353 | example "06" or "31" or "00". | |
1354 | ||
bed94269 GI |
1355 | .I halfmin2hour |
1356 | \- Raw Attribute is power\-on time, measured in units of 30 | |
832b75ed GG |
1357 | seconds. This format is used by some Samsung disks. Its raw value |
1358 | will be displayed in the form "Xh+Ym". Here X is hours, and Y is | |
1359 | minutes in the range 0\-59 inclusive. Y is always printed with two | |
1360 | digits, for example "06" or "31" or "00". | |
1361 | ||
cfbba5b9 GI |
1362 | .I msec24hour32 |
1363 | \- Raw Attribute is power\-on time measured in 32\-bit hours and 24\-bit | |
1364 | milliseconds since last hour update. It will be displayed in the form | |
1365 | "Xh+Ym+Z.Ms". Here X is hours, Y is minutes, Z is seconds and M is | |
1366 | milliseconds. | |
1367 | ||
bed94269 GI |
1368 | .I tempminmax |
1369 | \- Raw Attribute is the disk temperature in Celsius. Info about | |
cfbba5b9 GI |
1370 | Min/Max temperature is printed if available. This is the default |
1371 | for Attributes 190 and 194. The recording interval (lifetime, | |
1372 | last power cycle, last soft reset) of the min/max values is device | |
1373 | specific. | |
832b75ed | 1374 | |
bed94269 GI |
1375 | .I temp10x |
1376 | \- Raw Attribute is ten times the disk temperature in Celsius. | |
832b75ed | 1377 | |
bed94269 GI |
1378 | .I raw16(raw16) |
1379 | \- Print the raw attribute as a 16\-bit value and two optional | |
1380 | 16\-bit values if these words are nonzero. This is the default | |
1381 | for Attributes 5 and 196. | |
1382 | ||
1383 | .I raw16(avg16) | |
1384 | \- Raw attribute is spin-up time. It is printed as a 16-bit value | |
1385 | and an optional "Average" 16-bit value if the word is nonzero. | |
1386 | This is the default for Attribute 3. | |
1387 | ||
e165493d GI |
1388 | .I raw24(raw8) |
1389 | \- Print the raw attribute as a 24\-bit value and three optional | |
1390 | 8\-bit values if these bytes are nonzero. This is the default | |
1391 | for Attribute 9. | |
1392 | ||
bed94269 GI |
1393 | .I raw24/raw24 |
1394 | \- Raw Attribute contains two 24\-bit values. The first is the | |
832b75ed GG |
1395 | number of load cycles. The second is the number of unload cycles. |
1396 | The difference between these two values is the number of times that | |
1397 | the drive was unexpectedly powered off (also called an emergency | |
1398 | unload). As a rule of thumb, the mechanical stress created by one | |
1399 | emergency unload is equivalent to that created by one hundred normal | |
1400 | unloads. | |
1401 | ||
cfbba5b9 GI |
1402 | .I raw24/raw32 |
1403 | \- Raw attribute is an error rate which consists of a 24\-bit error | |
1404 | count and a 32\-bit total count. | |
1405 | ||
bed94269 GI |
1406 | The following old arguments to \'\-v\' are also still valid: |
1407 | ||
1408 | .I 9,minutes | |
1409 | \- same as: | |
1410 | .I 9,min2hour,Power_On_Minutes. | |
1411 | ||
1412 | .I 9,seconds | |
1413 | \- same as: | |
1414 | .I 9,sec2hour,Power_On_Seconds. | |
1415 | ||
1416 | .I 9,halfminutes | |
1417 | \- same as: | |
1418 | .I 9,halfmin2hour,Power_On_Half_Minutes. | |
1419 | ||
1420 | .I 9,temp | |
1421 | \- same as: | |
1422 | .I 9,tempminmax,Temperature_Celsius. | |
1423 | ||
1424 | .I 192,emergencyretractcyclect | |
1425 | \- same as: | |
1426 | .I 192,raw48,Emerg_Retract_Cycle_Ct | |
1427 | ||
1428 | .I 193,loadunload | |
1429 | \- same as: | |
1430 | .I 193,raw24/raw24. | |
1431 | ||
832b75ed | 1432 | .I 194,10xCelsius |
bed94269 GI |
1433 | \- same as: |
1434 | .I 194,temp10x,Temperature_Celsius_x10. | |
832b75ed GG |
1435 | |
1436 | .I 194,unknown | |
bed94269 GI |
1437 | \- same as: |
1438 | .I 194,raw48,Unknown_Attribute. | |
832b75ed | 1439 | |
2127e193 | 1440 | .I 197,increasing |
bed94269 GI |
1441 | \- same as: |
1442 | .I 197,raw48,Total_Pending_Sectors. | |
1443 | Also means that Attribute number 197 (Current Pending Sector Count) | |
1444 | is not reset if uncorrectable sectors are reallocated | |
1445 | (see \fBsmartd.conf\fP(5) man page). | |
2127e193 GI |
1446 | |
1447 | .I 198,increasing | |
bed94269 GI |
1448 | \- same as: |
1449 | .I 198,raw48,Total_Offl_Uncorrectabl. | |
1450 | Also means that Attribute number 198 (Offline Uncorrectable Sector Count) | |
1451 | is not reset if uncorrectable sectors are reallocated | |
1452 | (see \fBsmartd.conf\fP(5) man page). | |
2127e193 | 1453 | |
832b75ed | 1454 | .I 198,offlinescanuncsectorct |
bed94269 GI |
1455 | \- same as: |
1456 | .I 198,raw48,Offline_Scan_UNC_SectCt. | |
832b75ed GG |
1457 | |
1458 | .I 200,writeerrorcount | |
bed94269 GI |
1459 | \- same as: |
1460 | .I 200,raw48,Write_Error_Count. | |
832b75ed GG |
1461 | |
1462 | .I 201,detectedtacount | |
bed94269 GI |
1463 | \- same as: |
1464 | .I 201,raw48,Detected_TA_Count. | |
832b75ed GG |
1465 | |
1466 | .I 220,temp | |
bed94269 GI |
1467 | \- same as: |
1468 | .I 220,raw48,Temperature_Celsius. | |
832b75ed GG |
1469 | |
1470 | Note: a table of hard drive models, listing which Attribute | |
1471 | corresponds to temperature, can be found at: | |
1472 | \fBhttp://www.guzu.net/linux/hddtemp.db\fP | |
832b75ed GG |
1473 | .TP |
1474 | .B \-F TYPE, \-\-firmwarebug=TYPE | |
2127e193 GI |
1475 | [ATA only] Modifies the behavior of \fBsmartctl\fP to compensate for some |
1476 | known and understood device firmware or driver bug. Except \'swapid\', | |
a37e7145 GG |
1477 | the arguments to this option are exclusive, so that only the final |
1478 | option given is used. The valid values are: | |
832b75ed GG |
1479 | |
1480 | .I none | |
1481 | \- Assume that the device firmware obeys the ATA specifications. This | |
1482 | is the default, unless the device has presets for \'\-F\' in the | |
1483 | device database (see note below). | |
1484 | ||
1485 | .I samsung | |
1486 | \- In some Samsung disks (example: model SV4012H Firmware Version: | |
1487 | RM100\-08) some of the two\- and four\-byte quantities in the SMART data | |
1488 | structures are byte\-swapped (relative to the ATA specification). | |
1489 | Enabling this option tells \fBsmartctl\fP to evaluate these quantities | |
1490 | in byte\-reversed order. Some signs that your disk needs this option | |
1491 | are (1) no self\-test log printed, even though you have run self\-tests; | |
1492 | (2) very large numbers of ATA errors reported in the ATA error log; | |
1493 | (3) strange and impossible values for the ATA error log timestamps. | |
1494 | ||
1495 | .I samsung2 | |
e9583e0c GI |
1496 | \- In some Samsung disks the number of ATA errors reported is byte swapped. |
1497 | Enabling this option tells \fBsmartctl\fP to evaluate this quantity in | |
832b75ed | 1498 | byte\-reversed order. An indication that your Samsung disk needs this |
a37e7145 | 1499 | option is that the self\-test log is printed correctly, but there are a |
832b75ed GG |
1500 | very large number of errors in the SMART error log. This is because |
1501 | the error count is byte swapped. Thus a disk with five errors | |
1502 | (0x0005) will appear to have 20480 errors (0x5000). | |
1503 | ||
a37e7145 GG |
1504 | .I samsung3 |
1505 | \- Some Samsung disks (at least SP2514N with Firmware VF100\-37) report | |
1506 | a self\-test still in progress with 0% remaining when the test was already | |
1507 | completed. Enabling this option modifies the output of the self\-test | |
1508 | execution status (see options \'\-c\' or \'\-a\' above) accordingly. | |
1509 | ||
832b75ed GG |
1510 | Note that an explicit \'\-F\' option on the command line will |
1511 | over\-ride any preset values for \'\-F\' (see the \'\-P\' option | |
1512 | below). | |
1513 | ||
a37e7145 GG |
1514 | .I swapid |
1515 | \- Fixes byte swapped ATA identify strings (device name, serial number, | |
1516 | firmware version) returned by some buggy device drivers. | |
832b75ed GG |
1517 | .TP |
1518 | .B \-P TYPE, \-\-presets=TYPE | |
2127e193 GI |
1519 | [ATA only] Specifies whether \fBsmartctl\fP should use any preset options |
1520 | that are available for this drive. By default, if the drive is recognized | |
832b75ed GG |
1521 | in the \fBsmartmontools\fP database, then the presets are used. |
1522 | ||
1523 | \fBsmartctl\fP can automatically set appropriate options for known | |
1524 | drives. For example, the Maxtor 4D080H4 uses Attribute 9 to stores | |
1525 | power\-on time in minutes whereas most drives use that Attribute to | |
1526 | store the power\-on time in hours. The command\-line option \'\-v | |
1527 | 9,minutes\' ensures that \fBsmartctl\fP correctly interprets Attribute | |
1528 | 9 in this case, but that option is preset for the Maxtor 4D080H4 and | |
1529 | so need not be specified by the user on the \fBsmartctl\fP command | |
1530 | line. | |
1531 | ||
1532 | The argument | |
1533 | .I show | |
1534 | will show any preset options for your drive and the argument | |
1535 | .I showall | |
1536 | will show all known drives in the \fBsmartmontools\fP database, along | |
1537 | with their preset options. If there are no presets for your drive and | |
1538 | you think there should be (for example, a \-v or \-F option is needed | |
1539 | to get \fBsmartctl\fP to display correct values) then please contact | |
1540 | the \fBsmartmontools\fP developers so that this information can be | |
1541 | added to the \fBsmartmontools\fP database. Contact information is at the | |
1542 | end of this man page. | |
1543 | ||
1544 | The valid arguments to this option are: | |
1545 | ||
1546 | .I use | |
1547 | \- if a drive is recognized, then use the stored presets for it. This | |
1548 | is the default. Note that presets will NOT over\-ride additional | |
1549 | Attribute interpretation (\'\-v N,something\') command\-line options or | |
1550 | explicit \'\-F\' command\-line options.. | |
1551 | ||
1552 | .I ignore | |
1553 | \- do not use presets. | |
1554 | ||
1555 | .I show | |
1556 | \- show if the drive is recognized in the database, and if so, its | |
1557 | presets, then exit. | |
1558 | ||
1559 | .I showall | |
1560 | \- list all recognized drives, and the presets that are set for them, | |
d008864d GI |
1561 | then exit. This also checks the drive database regular expressions |
1562 | and settings for syntax errors. | |
832b75ed GG |
1563 | |
1564 | The \'\-P showall\' option takes up to two optional arguments to | |
1565 | match a specific drive type and firmware version. The command: | |
1566 | .nf | |
1567 | smartctl \-P showall | |
1568 | .fi | |
1569 | lists all entries, the command: | |
1570 | .nf | |
1571 | smartctl \-P showall \'MODEL\' | |
1572 | .fi | |
1573 | lists all entries matching MODEL, and the command: | |
1574 | .nf | |
1575 | smartctl \-P showall \'MODEL\' \'FIRMWARE\' | |
1576 | .fi | |
1577 | lists all entries for this MODEL and a specific FIRMWARE version. | |
2127e193 GI |
1578 | .TP |
1579 | .B \-B [+]FILE, \-\-drivedb=[+]FILE | |
cfbba5b9 GI |
1580 | [ATA only] Read the drive database from FILE. The new database replaces |
1581 | the built in database by default. If \'+\' is specified, then the new | |
1582 | entries prepend the built in entries. | |
2127e193 | 1583 | |
d008864d GI |
1584 | Optional entries are read from the file |
1585 | .\" %IF NOT OS Windows | |
1586 | \fB/usr/local/etc/smart_drivedb.h\fP | |
1587 | .\" %ENDIF NOT OS Windows | |
1588 | .\" %IF OS ALL | |
1589 | (Windows: \fBEXEDIR/drivedb-add.h\fP) | |
1590 | .\" %ENDIF OS ALL | |
1591 | .\" %IF OS Windows | |
1592 | .\"! \fBEXEDIR/drivedb-add.h\fP. | |
1593 | .\" %ENDIF OS Windows | |
1594 | .\" %IF ENABLE_DRIVEDB | |
1595 | if this option is not specified. | |
1596 | ||
1597 | If | |
1598 | .\" %IF NOT OS Windows | |
1599 | \fB/usr/local/share/smartmontools/drivedb.h\fP | |
1600 | .\" %ENDIF NOT OS Windows | |
1601 | .\" %IF OS ALL | |
1602 | (Windows: \fBEXEDIR/drivedb.h\fP) | |
1603 | .\" %ENDIF OS ALL | |
1604 | .\" %IF OS Windows | |
1605 | .\"! \fBEXEDIR/drivedb.h\fP | |
1606 | .\" %ENDIF OS Windows | |
1607 | is present, the contents of this file is used instead of the built in table. | |
1608 | ||
1609 | Run | |
1610 | .\" %IF NOT OS Windows | |
1611 | \fB/usr/local/sbin/update-smart-drivedb\fP | |
1612 | .\" %ENDIF NOT OS Windows | |
1613 | .\" %IF OS ALL | |
1614 | (Windows: \fBEXEDIR/update-smart-drivedb.exe\fP) | |
1615 | .\" %ENDIF OS ALL | |
1616 | .\" %IF OS Windows | |
1617 | .\"! \fBEXEDIR/update-smart-drivedb.exe\fP | |
1618 | .\" %ENDIF OS Windows | |
1619 | to update this file from the smartmontools SVN repository. | |
1620 | .\" %ENDIF ENABLE_DRIVEDB | |
2127e193 GI |
1621 | |
1622 | The database files use the same C/C++ syntax that is used to initialize | |
1623 | the built in database array. C/C++ style comments are allowed. | |
1624 | Example: | |
1625 | ||
1626 | .nf | |
1627 | /* Full entry: */ | |
1628 | { | |
1629 | "Model family", // Info about model family/series. | |
1630 | "MODEL1.*REGEX", // Regular expression to match model of device. | |
1631 | "VERSION.*REGEX", // Regular expression to match firmware version(s). | |
1632 | "Some warning", // Warning message. | |
1633 | "\-v 9,minutes" // String of preset \-v and \-F options. | |
1634 | }, | |
1635 | /* Minimal entry: */ | |
1636 | { | |
1637 | "", // No model family/series info. | |
1638 | "MODEL2.*REGEX", // Regular expression to match model of device. | |
1639 | "", // All firmware versions. | |
1640 | "", // No warning. | |
1641 | "" // No options preset. | |
1642 | }, | |
e9583e0c GI |
1643 | /* USB ID entry: */ |
1644 | { | |
1645 | "USB: Device; Bridge", // Info about USB device and bridge name. | |
1646 | "0x1234:0xabcd", // Regular expression to match vendor:product ID. | |
1647 | "0x0101", // Regular expression to match bcdDevice. | |
1648 | "", // Not used. | |
1649 | "\-d sat" // String with device type option. | |
1650 | }, | |
2127e193 GI |
1651 | /* ... */ |
1652 | .fi | |
1653 | ||
832b75ed GG |
1654 | .TP |
1655 | .B SMART RUN/ABORT OFFLINE TEST AND SELF\-TEST OPTIONS: | |
1656 | .TP | |
1657 | .B \-t TEST, \-\-test=TEST | |
1658 | Executes TEST immediately. The \'\-C\' option can be used in | |
1659 | conjunction with this option to run the short or long (and also for | |
1660 | ATA devices, selective or conveyance) self\-tests in captive mode | |
1661 | (known as "foreground mode" for SCSI devices). Note that only one | |
1662 | test type can be run at a time, so only one test type should be | |
1663 | specified per command line. Note also that if a computer is shutdown | |
1664 | or power cycled during a self\-test, no harm should result. The | |
1665 | self\-test will either be aborted or will resume automatically. | |
1666 | ||
1667 | The valid arguments to this option are: | |
1668 | ||
1669 | .I offline | |
e9583e0c | 1670 | \- [ATA] runs SMART Immediate Offline Test. This immediately |
832b75ed GG |
1671 | starts the test described above. This command can be given during |
1672 | normal system operation. The effects of this test are visible only in | |
1673 | that it updates the SMART Attribute values, and if errors are | |
1674 | found they will appear in the SMART error log, visible with the \'\-l error\' | |
e9583e0c | 1675 | option. |
832b75ed GG |
1676 | |
1677 | If the \'\-c\' option to \fBsmartctl\fP shows that the device has the | |
1678 | "Suspend Offline collection upon new command" capability then you can | |
1679 | track the progress of the Immediate Offline test using the \'\-c\' | |
1680 | option to \fBsmartctl\fP. If the \'\-c\' option show that the device | |
1681 | has the "Abort Offline collection upon new command" capability then | |
1682 | most commands will abort the Immediate Offline Test, so you should not | |
1683 | try to track the progress of the test with \'\-c\', as it will abort | |
1684 | the test. | |
1685 | ||
e9583e0c GI |
1686 | .I offline |
1687 | \- [SCSI] runs the default self test in foreground. No entry is placed | |
1688 | in the self test log. | |
1689 | ||
832b75ed | 1690 | .I short |
e9583e0c | 1691 | \- [ATA] runs SMART Short Self Test (usually under ten minutes). |
832b75ed GG |
1692 | This command can be given during normal system operation (unless run in |
1693 | captive mode \- see the \'\-C\' option below). This is a | |
1694 | test in a different category than the immediate or automatic offline | |
1695 | tests. The "Self" tests check the electrical and mechanical | |
1696 | performance as well as the read performance of the disk. Their | |
1697 | results are reported in the Self Test Error Log, readable with | |
1698 | the \'\-l selftest\' option. Note that on some disks the progress of the | |
1699 | self\-test can be monitored by watching this log during the self\-test; with other disks | |
1700 | use the \'\-c\' option to monitor progress. | |
1701 | ||
e9583e0c GI |
1702 | .I short |
1703 | \- [SCSI] runs the "Background short" self\-test. | |
1704 | ||
832b75ed | 1705 | .I long |
e9583e0c | 1706 | \- [ATA] runs SMART Extended Self Test (tens of minutes). This is a |
832b75ed GG |
1707 | longer and more thorough version of the Short Self Test described |
1708 | above. Note that this command can be given during normal | |
1709 | system operation (unless run in captive mode \- see the \'\-C\' option below). | |
1710 | ||
e9583e0c GI |
1711 | .I long |
1712 | \- [SCSI] runs the "Background long" self\-test. | |
1713 | ||
832b75ed | 1714 | .I conveyance |
2127e193 | 1715 | \- [ATA only] runs a SMART Conveyance Self Test (minutes). This |
832b75ed GG |
1716 | self\-test routine is intended to identify damage incurred during |
1717 | transporting of the device. This self\-test routine should take on the | |
1718 | order of minutes to complete. Note that this command can be given | |
1719 | during normal system operation (unless run in captive mode \- see the | |
1720 | \'\-C\' option below). | |
1721 | ||
a37e7145 | 1722 | .I select,N\-M, select,N+SIZE |
2127e193 GI |
1723 | \- [ATA only] runs a SMART Selective Self Test, to test a \fBrange\fP |
1724 | of disk Logical Block Addresses (LBAs), rather than the entire disk. | |
1725 | Each range of LBAs that is checked is called a "span" and is specified | |
1726 | by a starting LBA (N) and an ending LBA (M) with N less than or equal | |
1727 | to M. The range can also be specified as N+SIZE. A span at the end of | |
1728 | a disk can be specified by N\-\fBmax\fP. | |
a37e7145 GG |
1729 | |
1730 | For example the commands: | |
832b75ed GG |
1731 | .nf |
1732 | smartctl \-t select,10\-20 /dev/hda | |
a37e7145 | 1733 | smartctl \-t select,10+11 /dev/hda |
832b75ed | 1734 | .fi |
a37e7145 GG |
1735 | both runs a self test on one span consisting of LBAs ten to twenty |
1736 | (inclusive). The command: | |
1737 | .nf | |
1738 | smartctl \-t select,100000000\-max /dev/hda | |
1739 | .fi | |
1740 | run a self test from LBA 100000000 up to the end of the disk. | |
1741 | The \'\-t\' option can be given up to five times, to test | |
832b75ed GG |
1742 | up to five spans. For example the command: |
1743 | .nf | |
1744 | smartctl \-t select,0\-100 \-t select,1000\-2000 /dev/hda | |
1745 | .fi | |
1746 | runs a self test on two spans. The first span consists of 101 LBAs | |
1747 | and the second span consists of 1001 LBAs. Note that the spans can | |
1748 | overlap partially or completely, for example: | |
1749 | .nf | |
1750 | smartctl \-t select,0\-10 \-t select,5\-15 \-t select,10\-20 /dev/hda | |
1751 | .fi | |
1752 | The results of the selective self\-test can be obtained (both during | |
1753 | and after the test) by printing the SMART self\-test log, using the | |
1754 | \'\-l selftest\' option to smartctl. | |
1755 | ||
1756 | Selective self tests are particularly useful as disk capacities | |
1757 | increase: an extended self test (smartctl \-t long) can take several | |
1758 | hours. Selective self\-tests are helpful if (based on SYSLOG error | |
1759 | messages, previous failed self\-tests, or SMART error log entries) you | |
1760 | suspect that a disk is having problems at a particular range of | |
1761 | Logical Block Addresses (LBAs). | |
1762 | ||
1763 | Selective self\-tests can be run during normal system operation (unless | |
1764 | done in captive mode \- see the \'\-C\' option below). | |
1765 | ||
a37e7145 GG |
1766 | The following variants of the selective self\-test command use spans based |
1767 | on the ranges from past tests already stored on the disk: | |
1768 | ||
1769 | .I select,redo[+SIZE] | |
2127e193 GI |
1770 | \- [ATA only] redo the last SMART Selective Self Test using the same LBA |
1771 | range. The starting LBA is identical to the LBA used by last test, same | |
1772 | for ending LBA unless a new span size is specified by optional +SIZE | |
1773 | argument. | |
a37e7145 GG |
1774 | |
1775 | For example the commands: | |
1776 | .nf | |
1777 | smartctl \-t select,10\-20 /dev/hda | |
1778 | smartctl \-t select,redo /dev/hda | |
1779 | smartctl \-t select,redo+20 /dev/hda | |
1780 | .fi | |
1781 | have the same effect as: | |
1782 | .nf | |
1783 | smartctl \-t select,10\-20 /dev/hda | |
1784 | smartctl \-t select,10\-20 /dev/hda | |
1785 | smartctl \-t select,10\-29 /dev/hda | |
1786 | .fi | |
1787 | ||
1788 | .I select,next[+SIZE] | |
2127e193 GI |
1789 | \- [ATA only] runs a SMART Selective Self Test on the LBA range which |
1790 | follows the range of the last test. The starting LBA is set to (ending | |
1791 | LBA +1) of the last test. A new span size may be specified by the | |
1792 | optional +SIZE argument. | |
a37e7145 GG |
1793 | |
1794 | For example the commands: | |
1795 | .nf | |
1796 | smartctl \-t select,0\-999 /dev/hda | |
1797 | smartctl \-t select,next /dev/hda | |
1798 | smartctl \-t select,next+2000 /dev/hda | |
1799 | .fi | |
1800 | have the same effect as: | |
1801 | .nf | |
1802 | smartctl \-t select,0\-999 /dev/hda | |
1803 | smartctl \-t select,1000\-1999 /dev/hda | |
1804 | smartctl \-t select,2000\-3999 /dev/hda | |
1805 | .fi | |
1806 | ||
1807 | If the last test ended at the last LBA of the disk, the new range starts | |
1808 | at LBA 0. The span size of the last span of a disk is adjusted such that | |
1809 | the total number of spans to check the full disk will not be changed | |
1810 | by future uses of \'\-t select,next\'. | |
1811 | ||
1812 | .I select,cont[+SIZE] | |
2127e193 GI |
1813 | \- [ATA only] performs a \'redo\' (above) if the self test status reports |
1814 | that the last test was aborted by the host. Otherwise it run the \'next\' | |
1815 | (above) test. | |
832b75ed GG |
1816 | |
1817 | .I afterselect,on | |
2127e193 | 1818 | \- [ATA only] perform an offline read scan after a Selective Self\-test |
832b75ed GG |
1819 | has completed. This option must be used together with one or more of |
1820 | the \fIselect,N\-M\fP options above. If the LBAs that have been | |
1821 | specified in the Selective self\-test pass the test with no errors | |
1822 | found, then read scan the \fBremainder\fP of the disk. If the device | |
1823 | is powered\-cycled while this read scan is in progress, the read scan | |
1824 | will be automatically resumed after a time specified by the pending | |
1825 | timer (see below). The value of this option is preserved between | |
1826 | selective self\-tests. | |
1827 | ||
1828 | .I afterselect,off | |
2127e193 | 1829 | \- [ATA only] do not read scan the remainder of the disk after a |
832b75ed GG |
1830 | Selective self\-test has completed. This option must be use together |
1831 | with one or more of the \fIselect,N\-M\fP options above. The value of this | |
1832 | option is preserved between selective self\-tests. | |
1833 | ||
1834 | .I pending,N | |
2127e193 | 1835 | \- [ATA only] set the pending offline read scan timer to N minutes. |
832b75ed GG |
1836 | Here N is an integer in the range from 0 to 65535 inclusive. If the |
1837 | device is powered off during a read scan after a Selective self\-test, | |
1838 | then resume the test automatically N minutes after power\-up. This | |
1839 | option must be use together with one or more of the \fIselect,N\-M\fP | |
1840 | options above. The value of this option is preserved between selective | |
1841 | self\-tests. | |
1842 | ||
cfbba5b9 GI |
1843 | .I vendor,N |
1844 | \- [ATA only] issues the ATA command SMART EXECUTE OFF-LINE IMMEDIATE | |
1845 | with subcommand N in LBA LOW register. The subcommand is specified as | |
a7e8ffec | 1846 | a hex value in the range 0x00 to 0xff. Subcommands 0x40-0x7e and |
cfbba5b9 | 1847 | 0x90-0xff are reserved for vendor specific use, see table 61 of |
a7e8ffec GI |
1848 | T13/1699-D Revision 6a (ATA8-ACS). Note that the subcommands |
1849 | 0x00-0x04,0x7f,0x81-0x84 are supported by other smartctl options | |
1850 | (e.g. 0x01: \'\-t short\', 0x7f: \'\-X\', 0x82: \'\-C \-t long\'). | |
cfbba5b9 GI |
1851 | |
1852 | \fBWARNING: Only run subcommands documented by the vendor of the | |
1853 | device.\fP | |
1854 | ||
f4e463df | 1855 | Example for Intel (X18/X25\-M G2, 320, 520 and 710 Series) SSDs only: |
a7e8ffec GI |
1856 | The subcommand 0x40 (\'\-t vendor,0x40\') clears the timed workload |
1857 | related SMART attributes (226, 227, 228). Note that the raw values of | |
1858 | these attributes are held at 65535 (0xffff) until the workload timer | |
1859 | reaches 60 minutes. | |
d008864d GI |
1860 | |
1861 | .I force | |
1862 | \- [ATA only] start new self\-test even if another test is already running. | |
1863 | By default a running self\-test will not be interrupted to begin another | |
1864 | test. | |
1865 | ||
1866 | .I scttempint,N[,p] | |
1867 | \- is no longer supported, use \'\-l scttempint,N[,p]\' instead, see above. | |
832b75ed GG |
1868 | .TP |
1869 | .B \-C, \-\-captive | |
e9583e0c GI |
1870 | [ATA] Runs self\-tests in captive mode. This has no effect with \'\-t |
1871 | offline\' or if the \'\-t\' option is not used. | |
832b75ed GG |
1872 | |
1873 | \fBWARNING: Tests run in captive mode may busy out the drive for the | |
1874 | length of the test. Only run captive tests on drives without any | |
1875 | mounted partitions!\fP | |
1876 | ||
e9583e0c | 1877 | [SCSI] Runs the self\-test in "Foreground" mode. |
832b75ed GG |
1878 | .TP |
1879 | .B \-X, \-\-abort | |
1880 | Aborts non\-captive SMART Self Tests. Note that this | |
1881 | command will abort the Offline Immediate Test routine only if your | |
1882 | disk has the "Abort Offline collection upon new command" capability. | |
1883 | .PP | |
2127e193 GI |
1884 | .SH ATA, SCSI command sets and SAT |
1885 | In the past there has been a clear distinction between storage devices | |
1886 | that used the ATA and SCSI command sets. This distinction was often | |
1887 | reflected in their device naming and hardware. Now various SCSI | |
1888 | transports (e.g. SAS, FC and iSCSI) can interconnect to both SCSI | |
1889 | disks (e.g. FC and SAS) and ATA disks (especially SATA). USB and | |
1890 | IEEE 1394 storage devices use the SCSI command set externally but | |
1891 | almost always contain ATA or SATA disks (or flash). The storage | |
1892 | subsystems in some operating systems have started to remove the | |
1893 | distinction between ATA and SCSI in their device naming policies. | |
1894 | .PP | |
1895 | 99% of operations that an OS performs on a disk involve the SCSI INQUIRY, | |
1896 | READ CAPACITY, READ and WRITE commands, or their ATA equivalents. Since | |
1897 | the SCSI commands are slightly more general than their ATA equivalents, | |
1898 | many OSes are generating SCSI commands (mainly READ and WRITE) and | |
1899 | letting a lower level translate them to their ATA equivalents as the | |
1900 | need arises. An important note here is that "lower level" may be in | |
1901 | external equipment and hence outside the control of an OS. | |
1902 | .PP | |
1903 | SCSI to ATA Translation (SAT) is a standard (ANSI INCITS 431-2007) that | |
1904 | specifies how this translation is done. For the other 1% of operations | |
1905 | that an OS performs on a disk, SAT provides two options. First is an | |
1906 | optional ATA PASS-THROUGH SCSI command (there are two variants). The | |
1907 | second is a translation from the closest SCSI command. Most current | |
1908 | interest is in the "pass-through" option. | |
1909 | .PP | |
1910 | The relevance to smartmontools (and hence smartctl) is that its | |
1911 | interactions with disks fall solidly into the "1%" category. So even | |
1912 | if the OS can happily treat (and name) a disk as "SCSI", smartmontools | |
1913 | needs to detect the native command set and act accordingly. | |
1914 | As more storage manufacturers (including external SATA drives) comply | |
1915 | with SAT, smartmontools is able to automatically distinguish the native | |
1916 | command set of the device. In some cases the '\-d sat' option is needed | |
1917 | on the command line. | |
1918 | .PP | |
1919 | There are also virtual disks which typically have no useful information | |
1920 | to convey to smartmontools, but could conceivably in the future. An | |
1921 | example of a virtual disk is the OS's view of a RAID 1 box. There are | |
1922 | most likely two SATA disks inside a RAID 1 box. Addressing those SATA | |
1923 | disks from a distant OS is a challenge for smartmontools. Another | |
1924 | approach is running a tool like smartmontools inside the RAID 1 box (e.g. | |
1925 | a Network Attached Storage (NAS) box) and fetching the logs via a | |
1926 | browser. | |
1927 | .PP | |
832b75ed GG |
1928 | .SH EXAMPLES |
1929 | .nf | |
1930 | .B smartctl \-a /dev/hda | |
1931 | .fi | |
2127e193 GI |
1932 | Print a large amount of SMART information for drive /dev/hda which is |
1933 | typically an ATA (IDE) or SATA disk in Linux. | |
1934 | .PP | |
1935 | .nf | |
1936 | .B smartctl \-a /dev/sdb | |
1937 | .fi | |
cfbba5b9 | 1938 | Print a large amount of SMART information for drive /dev/sdb . This may |
2127e193 | 1939 | be a SCSI disk or an ATA (SATA) disk. |
832b75ed GG |
1940 | .PP |
1941 | .nf | |
1942 | .B smartctl \-s off /dev/hdd | |
1943 | .fi | |
2127e193 | 1944 | Disable SMART monitoring and data log collection on drive /dev/hdd . |
832b75ed GG |
1945 | .PP |
1946 | .nf | |
1947 | .B smartctl \-\-smart=on \-\-offlineauto=on \-\-saveauto=on /dev/hda | |
1948 | .fi | |
1949 | Enable SMART on drive /dev/hda, enable automatic offline | |
1950 | testing every four hours, and enable autosaving of | |
1951 | SMART Attributes. This is a good start\-up line for your system\'s | |
1952 | init files. You can issue this command on a running system. | |
1953 | .PP | |
1954 | .nf | |
1955 | .B smartctl \-t long /dev/hdc | |
1956 | .fi | |
1957 | Begin an extended self\-test of drive /dev/hdc. You can issue this | |
1958 | command on a running system. The results can be seen in the self\-test | |
1959 | log visible with the \'\-l selftest\' option after it has completed. | |
1960 | .PP | |
1961 | .nf | |
1962 | .B smartctl \-s on \-t offline /dev/hda | |
1963 | .fi | |
1964 | Enable SMART on the disk, and begin an immediate offline test of | |
1965 | drive /dev/hda. You can issue this command on a running system. The | |
1966 | results are only used to update the SMART Attributes, visible | |
1967 | with the \'\-A\' option. If any device errors occur, they are logged to | |
1968 | the SMART error log, which can be seen with the \'\-l error\' option. | |
1969 | .PP | |
1970 | .nf | |
1971 | .B smartctl \-A \-v 9,minutes /dev/hda | |
1972 | .fi | |
1973 | Shows the vendor Attributes, when the disk stores its power\-on time | |
1974 | internally in minutes rather than hours. | |
1975 | .PP | |
1976 | .nf | |
1977 | .B smartctl \-q errorsonly \-H \-l selftest /dev/hda | |
1978 | .fi | |
1979 | Produces output only if the device returns failing SMART status, | |
1980 | or if some of the logged self\-tests ended with errors. | |
1981 | .PP | |
1982 | .nf | |
1983 | .B smartctl \-q silent \-a /dev/hda | |
1984 | .fi | |
1985 | Examine all SMART data for device /dev/hda, but produce no | |
1986 | printed output. You must use the exit status (the | |
1987 | .B $? | |
1988 | shell variable) to learn if any Attributes are out of bound, if the | |
1989 | SMART status is failing, if there are errors recorded in the | |
1990 | self\-test log, or if there are errors recorded in the disk error log. | |
1991 | .PP | |
1992 | .nf | |
1993 | .B smartctl \-a \-d 3ware,0 /dev/sda | |
1994 | .fi | |
1995 | Examine all SMART data for the first ATA disk connected to a 3ware | |
1996 | RAID controller card. | |
1997 | .PP | |
1998 | .nf | |
1999 | .B smartctl \-a \-d 3ware,0 /dev/twe0 | |
2000 | .fi | |
2001 | Examine all SMART data for the first ATA disk connected to a 3ware | |
2002 | RAID 6000/7000/8000 controller card. | |
2003 | .PP | |
2004 | .nf | |
2005 | .B smartctl \-a \-d 3ware,0 /dev/twa0 | |
2006 | .fi | |
cfbba5b9 GI |
2007 | Examine all SMART data for the first ATA disk connected to a |
2008 | 3ware RAID 9000 controller card. | |
2009 | .PP | |
2010 | .nf | |
2011 | .B smartctl \-a \-d 3ware,0 /dev/twl0 | |
2012 | .fi | |
2013 | Examine all SMART data for the first SATA (not SAS) disk connected to a | |
2014 | 3ware RAID 9750 controller card. | |
832b75ed GG |
2015 | .PP |
2016 | .nf | |
2017 | .B smartctl \-t short \-d 3ware,3 /dev/sdb | |
2018 | .fi | |
2019 | Start a short self\-test on the fourth ATA disk connected to the 3ware RAID | |
2020 | controller card which is the second SCSI device /dev/sdb. | |
4d59bff9 GG |
2021 | .PP |
2022 | .nf | |
2127e193 GI |
2023 | .B smartctl \-t long \-d areca,4 /dev/sg2 |
2024 | .fi | |
2025 | Start a long self\-test on the fourth SATA disk connected to an Areca RAID | |
2026 | controller addressed by /dev/sg2. | |
2027 | .PP | |
2028 | .nf | |
2029 | .B smartctl \-a \-d hpt,1/3 /dev/sda (under Linux) | |
2030 | .B smartctl \-a \-d hpt,1/3 /dev/hptrr (under FreeBSD) | |
4d59bff9 GG |
2031 | .fi |
2032 | Examine all SMART data for the (S)ATA disk directly connected to the third channel of the | |
2033 | first HighPoint RocketRAID controller card. | |
2034 | .nf | |
2035 | .PP | |
2036 | .nf | |
2127e193 GI |
2037 | .B smartctl \-t short \-d hpt,1/1/2 /dev/sda (under Linux) |
2038 | .B smartctl \-t short \-d hpt,1/1/2 /dev/hptrr (under FreeBSD) | |
4d59bff9 GG |
2039 | .fi |
2040 | Start a short self\-test on the (S)ATA disk connected to second pmport on the | |
2041 | first channel of the first HighPoint RocketRAID controller card. | |
2042 | .PP | |
832b75ed GG |
2043 | .nf |
2044 | .B smartctl \-t select,10\-100 \-t select,30\-300 \-t afterselect,on \-t pending,45 /dev/hda | |
2045 | .fi | |
2046 | Run a selective self\-test on LBAs 10 to 100 and 30 to 300. After the | |
2047 | these LBAs have been tested, read\-scan the remainder of the disk. If the disk is | |
2048 | power\-cycled during the read\-scan, resume the scan 45 minutes after power to the | |
2049 | device is restored. | |
2050 | .PP | |
ba59cff1 GG |
2051 | .nf |
2052 | .B smartctl \-a \-d cciss,0 /dev/cciss/c0d0 | |
2053 | .fi | |
2054 | Examine all SMART data for the first SCSI disk connected to a cciss | |
2055 | RAID controller card. | |
2056 | .PP | |
832b75ed GG |
2057 | .SH RETURN VALUES |
2058 | The return values of \fBsmartctl\fP are defined by a bitmask. If all | |
2059 | is well with the disk, the return value (exit status) of | |
2060 | \fBsmartctl\fP is 0 (all bits turned off). If a problem occurs, or an | |
2061 | error, potential error, or fault is detected, then a non\-zero status | |
2062 | is returned. In this case, the eight different bits in the return | |
2063 | value have the following meanings for ATA disks; some of these values | |
2064 | may also be returned for SCSI disks. | |
2065 | .TP | |
2066 | .B Bit 0: | |
2067 | Command line did not parse. | |
2068 | .TP | |
2069 | .B Bit 1: | |
cfbba5b9 GI |
2070 | Device open failed, device did not return an IDENTIFY DEVICE structure, |
2071 | or device is in a low-power mode (see \'\-n\' option above). | |
832b75ed GG |
2072 | .TP |
2073 | .B Bit 2: | |
d008864d GI |
2074 | Some SMART or other ATA command to the disk failed, or there was a checksum |
2075 | error in a SMART data structure (see \'\-b\' option above). | |
832b75ed GG |
2076 | .TP |
2077 | .B Bit 3: | |
2078 | SMART status check returned "DISK FAILING". | |
2079 | .TP | |
2080 | .B Bit 4: | |
a37e7145 | 2081 | We found prefail Attributes <= threshold. |
832b75ed GG |
2082 | .TP |
2083 | .B Bit 5: | |
2084 | SMART status check returned "DISK OK" but we found that some (usage | |
2085 | or prefail) Attributes have been <= threshold at some time in the | |
2086 | past. | |
2087 | .TP | |
2088 | .B Bit 6: | |
2089 | The device error log contains records of errors. | |
2090 | .TP | |
2091 | .B Bit 7: | |
2092 | The device self\-test log contains records of errors. | |
cfbba5b9 GI |
2093 | [ATA only] Failed self-tests outdated by a newer successful extended |
2094 | self\-test are ignored. | |
d008864d | 2095 | .PP |
832b75ed GG |
2096 | To test within the shell for whether or not the different bits are |
2097 | turned on or off, you can use the following type of construction (this | |
2098 | is bash syntax): | |
2099 | .nf | |
2100 | .B smartstat=$(($? & 8)) | |
2101 | .fi | |
2102 | This looks at only at bit 3 of the exit status | |
2103 | .B $? | |
2104 | (since 8=2^3). The shell variable | |
2105 | $smartstat will be nonzero if SMART status check returned "disk | |
2106 | failing" and zero otherwise. | |
2107 | ||
d008864d GI |
2108 | This bash script prints all status bits: |
2109 | .nf | |
2110 | status=$? | |
2111 | for ((i=0; i<8; i++)); do | |
2112 | echo "Bit $i: $((status & 2**i && 1))" | |
2113 | done | |
2114 | .fi | |
2115 | ||
832b75ed GG |
2116 | .PP |
2117 | .SH NOTES | |
2118 | The TapeAlert log page flags are cleared for the initiator when the | |
2119 | page is read. This means that each alert condition is reported only | |
2120 | once by \fBsmartctl\fP for each initiator for each activation of the | |
2121 | condition. | |
2122 | ||
2123 | .PP | |
2124 | .SH AUTHOR | |
2125 | \fBBruce Allen\fP smartmontools\-support@lists.sourceforge.net | |
2126 | .fi | |
2127 | University of Wisconsin \- Milwaukee Physics Department | |
cfbba5b9 | 2128 | |
832b75ed GG |
2129 | .PP |
2130 | .SH CONTRIBUTORS | |
2131 | The following have made large contributions to smartmontools: | |
2132 | .nf | |
2133 | \fBCasper Dik\fP (Solaris SCSI interface) | |
2127e193 | 2134 | \fBChristian Franke\fP (Windows interface, C++ redesign, USB support, ...) |
832b75ed GG |
2135 | \fBDouglas Gilbert\fP (SCSI subsystem) |
2136 | \fBGuido Guenther\fP (Autoconf/Automake packaging) | |
2137 | \fBGeoffrey Keating\fP (Darwin ATA interface) | |
2138 | \fBEduard Martinescu\fP (FreeBSD interface) | |
d008864d | 2139 | \fBFr\['e]d\['e]ric L. W. Meunier\fP (Web site and Mailing list) |
2127e193 | 2140 | \fBGabriele Pohl\fP (Web site and Wiki, conversion from CVS to SVN) |
832b75ed | 2141 | \fBKeiji Sawada\fP (Solaris ATA interface) |
2127e193 | 2142 | \fBManfred Schwarb\fP (Drive database) |
832b75ed GG |
2143 | \fBSergey Svishchev\fP (NetBSD interface) |
2144 | \fBDavid Snyder and Sergey Svishchev\fP (OpenBSD interface) | |
2145 | \fBPhil Williams\fP (User interface and drive database) | |
2146 | \fBYuri Dario\fP (OS/2, eComStation interface) | |
2127e193 | 2147 | \fBShengfeng Zhou\fP (Linux/FreeBSD HighPoint RocketRAID interface) |
832b75ed GG |
2148 | .fi |
2149 | Many other individuals have made smaller contributions and corrections. | |
2150 | ||
2151 | .PP | |
2152 | .SH CREDITS | |
2153 | .fi | |
2154 | This code was derived from the smartsuite package, written by Michael | |
2155 | Cornwell, and from the previous UCSC smartsuite package. It extends | |
2156 | these to cover ATA\-5 disks. This code was originally developed as a | |
2157 | Senior Thesis by Michael Cornwell at the Concurrent Systems Laboratory | |
2158 | (now part of the Storage Systems Research Center), Jack Baskin School | |
2159 | of Engineering, University of California, Santa | |
2160 | Cruz. \fBhttp://ssrc.soe.ucsc.edu/\fP . | |
2161 | .SH | |
2162 | HOME PAGE FOR SMARTMONTOOLS: | |
2163 | .fi | |
2164 | Please see the following web site for updates, further documentation, bug | |
2165 | reports and patches: \fBhttp://smartmontools.sourceforge.net/\fP | |
2166 | ||
2167 | .SH | |
2168 | SEE ALSO: | |
2169 | \fBsmartd\fP(8), \fBbadblocks\fP(8), \fBide\-smart\fP(8). | |
2170 | .SH | |
2171 | REFERENCES FOR SMART | |
2172 | .fi | |
2173 | An introductory article about smartmontools is \fIMonitoring Hard | |
2174 | Disks with SMART\fP, by Bruce Allen, Linux Journal, January 2004, | |
e9583e0c | 2175 | pages 74\-77. This is \fBhttp://www.linuxjournal.com/article/6983\fP |
832b75ed GG |
2176 | online. |
2177 | ||
2178 | If you would like to understand better how SMART works, and what it | |
2179 | does, a good place to start is with Sections 4.8 and 6.54 of the first | |
a37e7145 | 2180 | volume of the \'AT Attachment with Packet Interface\-7\' (ATA/ATAPI\-7) |
e9583e0c GI |
2181 | specification Revision 4b. This documents the SMART functionality which the |
2182 | \fBsmartmontools\fP utilities provide access to. | |
832b75ed GG |
2183 | |
2184 | .fi | |
2185 | The functioning of SMART was originally defined by the SFF\-8035i | |
2186 | revision 2 and the SFF\-8055i revision 1.4 specifications. These are | |
e9583e0c GI |
2187 | publications of the Small Form Factors (SFF) Committee. |
2188 | ||
2189 | Links to these and other documents may be found on the Links page of the | |
2190 | \fBsmartmontools\fP Wiki at | |
2191 | \fBhttp://sourceforge.net/apps/trac/smartmontools/wiki/Links\fP . | |
832b75ed GG |
2192 | |
2193 | .SH | |
2127e193 | 2194 | SVN ID OF THIS PAGE: |
f4e463df | 2195 | $Id: smartctl.8.in 3561 2012-06-05 19:49:31Z chrfranke $ |