Red Hat GFS 5.2.1 -, Administrator'S Manual

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Chapter 9. Managing GFS 101
9.9.2.2. Examples
In this example, all GFS tunable parameters for the file system on the mount point
/gfs1
are dis-
played.
gfs_tool gettune /gfs1
In this example, the
atime
update period is set to once a day (86,400 seconds) for the GFS file system
on mount point
/gfs1
.
gfs_tool settune /gfs1 atime_quantum 86400
9.10. Suspending Activity on a File System
All write activity to a file system can be suspended for a time by using the
gfs_tool
command’s
freeze
action. The
unfreeze
action returns the file system to its ordinary state. That feature allows
hardware-based device snapshots to be used to capture the file system in a consistent state.
9.10.1. Usage
Freeze Activity
gfs_tool
freeze
MountPoint
Unfreeze Activity
gfs_tool
unfreeze
MountPoint
MountPoint
Specifies the file system to freeze or unfreeze.
9.10.2. Examples
This example freezes file system
/gfs
.
gfs_tool freeze /gfs
This example unfreezes file system
/gfs
.
gfs_tool unfreeze /gfs