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Commit | Line | Data |
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b3b94faa | 1 | config GFS2_FS |
b5ea3e1e | 2 | tristate "GFS2 file system support" |
b3b94faa | 3 | depends on EXPERIMENTAL |
b5ea3e1e SW |
4 | select FS_POSIX_ACL |
5 | help | |
6 | A cluster filesystem. | |
7 | ||
8 | Allows a cluster of computers to simultaneously use a block device | |
9 | that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads | |
10 | and writes to the block device like a local filesystem, but also uses | |
11 | a lock module to allow the computers coordinate their I/O so | |
12 | filesystem consistency is maintained. One of the nifty features of | |
13 | GFS is perfect consistency -- changes made to the filesystem on one | |
14 | machine show up immediately on all other machines in the cluster. | |
b3b94faa DT |
15 | |
16 | To use the GFS2 filesystem, you will need to enable one or more of | |
17 | the below locking modules. Documentation and utilities for GFS2 can | |
a4644184 | 18 | be found here: http://sources.redhat.com/cluster |
b3b94faa DT |
19 | |
20 | config GFS2_FS_LOCKING_NOLOCK | |
21 | tristate "GFS2 \"nolock\" locking module" | |
22 | depends on GFS2_FS | |
23 | help | |
24 | Single node locking module for GFS2. | |
25 | ||
26 | Use this module if you want to use GFS2 on a single node without | |
27 | its clustering features. You can still take advantage of the | |
28 | large file support, and upgrade to running a full cluster later on | |
29 | if required. | |
30 | ||
31 | If you will only be using GFS2 in cluster mode, you do not need this | |
32 | module. | |
33 | ||
34 | config GFS2_FS_LOCKING_DLM | |
35 | tristate "GFS2 DLM locking module" | |
36 | depends on GFS2_FS | |
37 | select DLM | |
38 | help | |
39 | Multiple node locking module for GFS2 | |
40 | ||
41 | Most users of GFS2 will require this module. It provides the locking | |
42 | interface between GFS2 and the DLM, which is required to use GFS2 | |
43 | in a cluster environment. | |
44 |