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authorDavid S. Miller <davem@davemloft.net>2009-06-15 12:02:23 +0200
committerDavid S. Miller <davem@davemloft.net>2009-06-15 12:02:23 +0200
commit9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch)
tree8d104ec2a459346b99413b0b77421ca7b9936c1a /Documentation/filesystems/gfs2.txt
parentpkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US (diff)
parentMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kb... (diff)
downloadlinux-9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb.tar.xz
linux-9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
Diffstat (limited to 'Documentation/filesystems/gfs2.txt')
-rw-r--r--Documentation/filesystems/gfs2.txt19
1 files changed, 11 insertions, 8 deletions
diff --git a/Documentation/filesystems/gfs2.txt b/Documentation/filesystems/gfs2.txt
index 593004b6bbab..5e3ab8f3beff 100644
--- a/Documentation/filesystems/gfs2.txt
+++ b/Documentation/filesystems/gfs2.txt
@@ -11,18 +11,15 @@ their I/O so file system consistency is maintained. One of the nifty
features of GFS is perfect consistency -- changes made to the file system
on one machine show up immediately on all other machines in the cluster.
-GFS uses interchangable inter-node locking mechanisms. Different lock
-modules can plug into GFS and each file system selects the appropriate
-lock module at mount time. Lock modules include:
+GFS uses interchangable inter-node locking mechanisms, the currently
+supported mechanisms are:
lock_nolock -- allows gfs to be used as a local file system
lock_dlm -- uses a distributed lock manager (dlm) for inter-node locking
The dlm is found at linux/fs/dlm/
-In addition to interfacing with an external locking manager, a gfs lock
-module is responsible for interacting with external cluster management
-systems. Lock_dlm depends on user space cluster management systems found
+Lock_dlm depends on user space cluster management systems found
at the URL above.
To use gfs as a local file system, no external clustering systems are
@@ -31,13 +28,19 @@ needed, simply:
$ mkfs -t gfs2 -p lock_nolock -j 1 /dev/block_device
$ mount -t gfs2 /dev/block_device /dir
-GFS2 is not on-disk compatible with previous versions of GFS.
+If you are using Fedora, you need to install the gfs2-utils package
+and, for lock_dlm, you will also need to install the cman package
+and write a cluster.conf as per the documentation.
+
+GFS2 is not on-disk compatible with previous versions of GFS, but it
+is pretty close.
The following man pages can be found at the URL above:
- gfs2_fsck to repair a filesystem
+ fsck.gfs2 to repair a filesystem
gfs2_grow to expand a filesystem online
gfs2_jadd to add journals to a filesystem online
gfs2_tool to manipulate, examine and tune a filesystem
gfs2_quota to examine and change quota values in a filesystem
+ gfs2_convert to convert a gfs filesystem to gfs2 in-place
mount.gfs2 to help mount(8) mount a filesystem
mkfs.gfs2 to make a filesystem