Step 4: Upgrade the same controller to Xsan 2.2
Install the Xsan 2.2 update on the controller.
To update to Xsan 2.2:
Choose Software Update from the Apple menu and install the two Xsan 2.2 updates,
one for the file system and one for Xsan Admin.
If the computer is on a private network, you can use a computer that is connected to
the Internet to download the updates from www.apple.com/support/downloads, then
transfer the installers to the SAN computer and run them.
From this point forward, use only the Xsan 2.2 version of Xsan Admin.