Upgrading Your SAN Software
Follow these instructions if all of your metadata controllers have Intel processors. If you
have controllers with PowerPC processors, follow the instructions in “Upgrading Both
SAN Hardware and Software” on page 10.
Back up your SAN volumes.
Disable Spotlight on all volumes.
Upgrade one controller to Mac OS X Server version 10.6.
Upgrade the same controller to Xsan 2.2.
Upgrade the remaining controllers.
Reestablish Open Directory replicas.
Upgrade the SAN clients.
Enable extended attributes.
Instructions for each of these steps are on the following pages.