| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | config GFS2_FS |
| Steven Whitehouse | b5ea3e1 | 2006-04-24 14:14:42 -0400 | [diff] [blame] | 2 | tristate "GFS2 file system support" |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 3 | depends on EXPERIMENTAL |
| Steven Whitehouse | b5ea3e1 | 2006-04-24 14:14:42 -0400 | [diff] [blame] | 4 | select FS_POSIX_ACL |
| Steven Whitehouse | fa2ecfc5e | 2006-11-20 10:04:49 -0500 | [diff] [blame] | 5 | select CRC32 |
| Steven Whitehouse | b5ea3e1 | 2006-04-24 14:14:42 -0400 | [diff] [blame] | 6 | help |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 7 | A cluster filesystem. |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 8 | |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 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. |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 16 | |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 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 |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 20 | |
| 21 | config GFS2_FS_LOCKING_NOLOCK |
| 22 | tristate "GFS2 \"nolock\" locking module" |
| 23 | depends on GFS2_FS |
| 24 | help |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 25 | Single node locking module for GFS2. |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 26 | |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 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. |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 31 | |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 32 | If you will only be using GFS2 in cluster mode, you do not need this |
| 33 | module. |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 34 | |
| 35 | config GFS2_FS_LOCKING_DLM |
| 36 | tristate "GFS2 DLM locking module" |
| Adrian Bunk | 0011727 | 2007-01-28 17:19:50 +0100 | [diff] [blame] | 37 | depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n) |
| Steven Whitehouse | 1003f06 | 2006-12-12 10:16:25 +0000 | [diff] [blame] | 38 | select IP_SCTP if DLM_SCTP |
| 39 | select CONFIGFS_FS |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 40 | select DLM |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 41 | help |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 42 | Multiple node locking module for GFS2 |
| David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 43 | |
| Randy Dunlap | 9beeb9f | 2007-01-30 14:30:08 -0800 | [diff] [blame] | 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. |