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GFS2: Update docs

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Update a few things which were out of date, and fix a typo.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2009-05-19 10:23:23 +01:00
parent fe64d517df
commit e9ccb73ab5
2 changed files with 12 additions and 9 deletions
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2
Documentation/filesystems/gfs2-glocks.txt
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@ -60,7 +60,7 @@ go_lock | Called for the first local holder of a lock
go_unlock | Called on the final local unlock of a lock
go_dump | Called to print content of object for debugfs file, or on
| error to dump glock to the log.
go_type; | The type of the glock, LM_TYPE_.....
go_type | The type of the glock, LM_TYPE_.....
go_min_hold_time | The minimum hold time
The minimum hold time for each lock is the time after a remote lock

19
Documentation/filesystems/gfs2.txt
View file

@ -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