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Commit | Line | Data |
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b3b94faa | 1 | config GFS2_FS |
b5ea3e1e | 2 | tristate "GFS2 file system support" |
10528497 | 3 | depends on EXPERIMENTAL && (64BIT || (LSF && LBD)) |
b5ea3e1e | 4 | select FS_POSIX_ACL |
fa2ecfc5 | 5 | select CRC32 |
b5ea3e1e | 6 | help |
9beeb9f3 | 7 | A cluster filesystem. |
b5ea3e1e | 8 | |
9beeb9f3 RD |
9 | Allows a cluster of computers to simultaneously use a block device |
10 | that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads | |
11 | and writes to the block device like a local filesystem, but also uses | |
12 | a lock module to allow the computers coordinate their I/O so | |
13 | filesystem consistency is maintained. One of the nifty features of | |
14 | GFS is perfect consistency -- changes made to the filesystem on one | |
15 | machine show up immediately on all other machines in the cluster. | |
b3b94faa | 16 | |
9beeb9f3 RD |
17 | To use the GFS2 filesystem, you will need to enable one or more of |
18 | the below locking modules. Documentation and utilities for GFS2 can | |
19 | be found here: http://sources.redhat.com/cluster | |
b3b94faa DT |
20 | |
21 | config GFS2_FS_LOCKING_NOLOCK | |
22 | tristate "GFS2 \"nolock\" locking module" | |
23 | depends on GFS2_FS | |
24 | help | |
9beeb9f3 | 25 | Single node locking module for GFS2. |
b3b94faa | 26 | |
9beeb9f3 RD |
27 | Use this module if you want to use GFS2 on a single node without |
28 | its clustering features. You can still take advantage of the | |
29 | large file support, and upgrade to running a full cluster later on | |
30 | if required. | |
b3b94faa | 31 | |
9beeb9f3 RD |
32 | If you will only be using GFS2 in cluster mode, you do not need this |
33 | module. | |
b3b94faa DT |
34 | |
35 | config GFS2_FS_LOCKING_DLM | |
36 | tristate "GFS2 DLM locking module" | |
00117277 | 37 | depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n) |
1003f069 SW |
38 | select IP_SCTP if DLM_SCTP |
39 | select CONFIGFS_FS | |
b3b94faa DT |
40 | select DLM |
41 | help | |
9beeb9f3 | 42 | Multiple node locking module for GFS2 |
b3b94faa | 43 | |
9beeb9f3 RD |
44 | Most users of GFS2 will require this module. It provides the locking |
45 | interface between GFS2 and the DLM, which is required to use GFS2 | |
46 | in a cluster environment. |