projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b3b94faa | 1 | config GFS2_FS |
| b5ea3e1e | 2 | tristate "GFS2 file system support" |
| b3b94faa | 3 | depends on EXPERIMENTAL |
| 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. |