You can suspend write activity to a file system by using the
dmsetup command. Suspending write activity allows hardware-based device snapshots to be used to capture the file system in a consistent state. The
dmsetup command ends the suspension.
Specifies the file system.
This example suspends writes to file system
dmsetup suspend /mygfs2
This example ends suspension of writes to file system
dmsetup resume /mygfs2