4.10. Suspending Activity on a File System

4.10. Suspending Activity on a File System

You can suspend write activity to a file system by using the gfs_tool freeze command. Suspending write activity allows hardware-based device snapshots to be used to capture the file system in a consistent state. The gfs_tool unfreeze command ends the suspension.

Usage

Start Suspension 

gfs_tool freeze MountPoint

End Suspension 

          gfs_tool unfreeze MountPoint
MountPoint

Specifies the file system.

Examples

This example suspends writes to file system /gfs. 

gfs_tool freeze /gfs

This example ends suspension of writes to file system /gfs. 

gfs_tool unfreeze /gfs

Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-4 because CentOS-4 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-4 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.