Apple Xsan 2 (Third Edition) - Manual (Page 7)

Upgrading to Xsan 2.2 7
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.
Summary:
1 Back up your SAN volumes.
2 Disable Spotlight on all volumes.
3 Upgrade one controller to Mac OS X Server version 10.6.
4 Upgrade the same controller to Xsan 2.2.
5 Upgrade the remaining controllers.
6 Reestablish Open Directory replicas.
7 Upgrade the SAN clients.
8 Enable extended attributes.
9 Reenable Spotlight.
Instructions for each of these steps are on the following pages.
Step 1: Back up your SAN volumes
Before you begin, make a backup copy of the files on your SAN volumes.
Step 2: Disable Spotlight on all volumes
If you’re going to upgrade your SAN computers to Mac OS X v10.6, disable Spotlight on
all Xsan volumes during the upgrade. If you’re upgrading only Xsan but not Mac OS X,
skip this step.
To disable Spotlight on a volume:
1 Open your current version of Xsan Admin.
2 In Xsan Admin, select Volumes in the SAN Assets list.
3 Select the volume and choose Edit Volume Settings from the Action (gear) pop-up
menu.
4 Click to deselect “Enable on this volume” next to Spotlight.
Step 3: Upgrade one controller to Mac OS X Server version 10.6
Xsan 2.2 requires Mac OS X v10.5.8 or v10.6. If you want to upgrade your metadata
controllers to Mac OS X Server v10.6, upgrade the first controller now. If you are
running Mac OS X Server v10.5 on your controllers and don’t want to upgrade to
v10.6, make sure you’re running v10.5.8 and then skip to the next step.
Important: If you use Xsan Admin to manage your SAN users and groups, start with
your primary controller (the controller hosting the SAN’s Open Directory master).