Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Note: Thin Reclamation is a slow process and may take several hours to complete,
depending on the file system size. Thin Reclamation is not guaranteed to reclaim
100% of the free space.
You can track the progress of the Thin Reclamation process by using the vxtask
list command when using the Veritas Volume Manager (VxVM) command vxdisk
reclaim.
See the vxtask(1M) and vxdisk(1M) manual pages.
You can administer Thin Reclamation using VxVM commands.
See the Veritas Volume Manager Administrator's Guide.
Triggering space reclamation
This section describes how to trigger space reclamation.
To trigger space reclamation
1
Ensure you mounted the VxFS file system.
See the mount(1M) manual page.
If you need to mount the VxFS file system, see the mount_vxfs(1M) manual
page.
2
Use the fsadm command to trigger space reclamation:
# /opt/VRTS/bin/fsadm -F vxfs -R /<VxFS_mount_point>
where <VxFS_mount_point> is the name of the VxFS file system mount point.
Note: If the VxFS file system is not mounted you will receive an error message.
For example: Disk 3pardata0_110 : Skipped. No VxFS file system found.
See the Veritas File System Administrator's Guide for more information on how
to trigger Thin Reclamation on a VxFS file system.
Monitoring Thin Reclamation using the vxtask
command
This section describes how to monitor thin reclamation using the vxtask command.
347Administering volumes
Monitoring Thin Reclamation using the vxtask command