Upgrading Both SAN Hardware and Software
Follow these instructions if, as part of your Xsan 2.2 upgrade, you need to replace
PowerPC-based controllers with Intel-based controllers. (You must have Intel-based
metadata controllers to run Xsan 2.2.)
Back up your SAN volumes.
Disable Spotlight on all volumes.
Connect at least two Intel-based computers to the SAN.
Upgrade Mac OS X on the new controllers.
Install Xsan 2.2 on the new controllers.
Add the new controllers to the SAN.
Adjust volume failover priorities.
Make an Intel-based controller the primary controller.
Demote the old PowerPC-based controllers.
Add the remaining Intel-based computers to the SAN.
Upgrade the SAN clients.
Enable extended attributes.
Recreate your MultiSAN configuration.