Checking Volume Fragmentation
When you create a file, Xsan divides the file into pieces and distributes these pieces
efficiently over the LUNs that make up one of the volume’s storage pools. Over time, as
the file is modified, its pieces become scattered in less efficient arrangements. You can
utility to check the state of file fragmentation on your volumes.
To check volume fragmentation:
Open Terminal (in /Applications/Utilities/).
If you aren’t working at the SAN controller computer, use SSH to log in to the controller
$ ssh user@computer
with the name of an administrator user on the controller computer and
with the controller’s name or IP address.
command-line utility with the
$ sudo cvfsck -f volume
For more information, see the