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4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2016 by Delphix. All rights reserved.
27 #include <sys/zfs_context.h>
33 #include <sys/fs/zfs.h>
34 #include <sys/refcount.h>
38 * Routines needed by more than one client of libzpool.
42 nicenum(uint64_t num
, char *buf
)
49 n
= (n
+ (1024 / 2)) / 1024; /* Round up or down */
56 (void) sprintf(buf
, "%llu", (u_longlong_t
)n
);
57 } else if (n
< 10 && (num
& (num
- 1)) != 0) {
58 (void) sprintf(buf
, "%.2f%c",
59 (double)num
/ (1ULL << 10 * index
), u
);
60 } else if (n
< 100 && (num
& (num
- 1)) != 0) {
61 (void) sprintf(buf
, "%.1f%c",
62 (double)num
/ (1ULL << 10 * index
), u
);
64 (void) sprintf(buf
, "%llu%c", (u_longlong_t
)n
, u
);
69 show_vdev_stats(const char *desc
, const char *ctype
, nvlist_t
*nv
, int indent
)
72 vdev_stat_t
*v0
= { 0 };
77 char used
[6], avail
[6];
78 char rops
[6], wops
[6], rbytes
[6], wbytes
[6], rerr
[6], werr
[6], cerr
[6];
81 v0
= umem_zalloc(sizeof (*v0
), UMEM_NOFAIL
);
83 if (indent
== 0 && desc
!= NULL
) {
85 " capacity operations bandwidth ---- errors ----\n");
86 (void) printf("description "
87 "used avail read write read write read write cksum\n");
91 (void) nvlist_lookup_uint64(nv
, ZPOOL_CONFIG_IS_LOG
, &is_log
);
96 if (nvlist_lookup_uint64_array(nv
, ZPOOL_CONFIG_VDEV_STATS
,
97 (uint64_t **)&vs
, &c
) != 0)
100 sec
= MAX(1, vs
->vs_timestamp
/ NANOSEC
);
102 nicenum(vs
->vs_alloc
, used
);
103 nicenum(vs
->vs_space
- vs
->vs_alloc
, avail
);
104 nicenum(vs
->vs_ops
[ZIO_TYPE_READ
] / sec
, rops
);
105 nicenum(vs
->vs_ops
[ZIO_TYPE_WRITE
] / sec
, wops
);
106 nicenum(vs
->vs_bytes
[ZIO_TYPE_READ
] / sec
, rbytes
);
107 nicenum(vs
->vs_bytes
[ZIO_TYPE_WRITE
] / sec
, wbytes
);
108 nicenum(vs
->vs_read_errors
, rerr
);
109 nicenum(vs
->vs_write_errors
, werr
);
110 nicenum(vs
->vs_checksum_errors
, cerr
);
112 (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n",
115 (int)(indent
+strlen(prefix
)-25-(vs
->vs_space
? 0 : 12)),
117 vs
->vs_space
? 6 : 0, vs
->vs_space
? used
: "",
118 vs
->vs_space
? 6 : 0, vs
->vs_space
? avail
: "",
119 rops
, wops
, rbytes
, wbytes
, rerr
, werr
, cerr
);
123 if (nvlist_lookup_nvlist_array(nv
, ctype
, &child
, &children
) != 0)
126 for (c
= 0; c
< children
; c
++) {
127 nvlist_t
*cnv
= child
[c
];
128 char *cname
= NULL
, *tname
;
131 if (nvlist_lookup_string(cnv
, ZPOOL_CONFIG_PATH
, &cname
) &&
132 nvlist_lookup_string(cnv
, ZPOOL_CONFIG_TYPE
, &cname
))
134 len
= strlen(cname
) + 2;
135 tname
= umem_zalloc(len
, UMEM_NOFAIL
);
136 (void) strlcpy(tname
, cname
, len
);
137 if (nvlist_lookup_uint64(cnv
, ZPOOL_CONFIG_NPARITY
, &np
) == 0)
138 tname
[strlen(tname
)] = '0' + np
;
139 show_vdev_stats(tname
, ctype
, cnv
, indent
+ 2);
145 show_pool_stats(spa_t
*spa
)
147 nvlist_t
*config
, *nvroot
;
150 VERIFY(spa_get_stats(spa_name(spa
), &config
, NULL
, 0) == 0);
152 VERIFY(nvlist_lookup_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
,
154 VERIFY(nvlist_lookup_string(config
, ZPOOL_CONFIG_POOL_NAME
,
157 show_vdev_stats(name
, ZPOOL_CONFIG_CHILDREN
, nvroot
, 0);
158 show_vdev_stats(NULL
, ZPOOL_CONFIG_L2CACHE
, nvroot
, 0);
159 show_vdev_stats(NULL
, ZPOOL_CONFIG_SPARES
, nvroot
, 0);
165 * Sets given global variable in libzpool to given unsigned 32-bit value.
166 * arg: "<variable>=<value>"
169 set_global_var(char *arg
)
172 char *varname
= arg
, *varval
;
175 #ifndef _LITTLE_ENDIAN
177 * On big endian systems changing a 64-bit variable would set the high
178 * 32 bits instead of the low 32 bits, which could cause unexpected
181 fprintf(stderr
, "Setting global variables is only supported on "
182 "little-endian systems\n");
185 if (arg
!= NULL
&& (varval
= strchr(arg
, '=')) != NULL
) {
188 val
= strtoull(varval
, NULL
, 0);
189 if (val
> UINT32_MAX
) {
190 fprintf(stderr
, "Value for global variable '%s' must "
191 "be a 32-bit unsigned integer\n", varname
);
198 zpoolhdl
= dlopen("libzpool.so", RTLD_LAZY
);
199 if (zpoolhdl
!= NULL
) {
201 var
= dlsym(zpoolhdl
, varname
);
203 fprintf(stderr
, "Global variable '%s' does not exist "
204 "in libzpool.so\n", varname
);
207 *var
= (uint32_t)val
;
211 fprintf(stderr
, "Failed to open libzpool.so to set global "