Mount With Noatime; Suspending Activity On A File System - Red Hat ENTERPRISE LINUX 5 - GLOBAL FILE SYSTEM 2 Manual

Chapter 3. Managing GFS2

3.9.2. Mount with noatime

The noatime Linux mount option can be specified when the file system is mounted, which disables
atime updates on that file system.
Usage
mount BlockDevice MountPoint -o noatime
BlockDevice
Specifies the block device where the GFS2 file system resides.
MountPoint
Specifies the directory where the GFS2 file system should be mounted.
Example
In this example, the GFS2 file system resides on the /dev/vg01/lvol0 and is mounted on directory
/mygfs2 with atime updates turned off.
mount /dev/vg01/lvol0 /mygfs2 -o noatime

3.10. Suspending Activity on a File System

You can suspend write activity to a file system by using the gfs2_tool freeze command.
Suspending write activity allows hardware-based device snapshots to be used to capture the file
system in a consistent state. The gfs2_tool unfreeze command ends the suspension.
Usage
Start Suspension
gfs2_tool freeze MountPoint
End Suspension
gfs2_tool unfreeze MountPoint
MountPoint
Specifies the file system.
Examples
This example suspends writes to file system /mygfs2.
gfs2_tool freeze /mygfs2
This example ends suspension of writes to file system /mygfs2.
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