Apple Xsan (upgrading to Xsan 1.4) - Manual (Page 14)

14 Chapter 2 Upgrading to Xsan 1.4 on Mac OS X version 10.4
Step 3: If needed, upgrade Xsan on controllers and clients to Xsan 1.3
If you are already running Xsan 1.3 on your controllers and clients, you can go on to
Step 4 on the next page.
If your controllers and clients are not running Xsan 1.3 and you want to upgrade
without interrupting volume availability, you must migrate your controllers and clients
one version of Xsan at a time to permit failover until they are all running Xsan 1.3. Also,
your clients need to be no more than one version behind your controllers.
If you don’t need to keep your volumes available during the upgrade, you can stop the
volumes and skip to Step 4 on the next page to install Xsan 1.4 without installing
intermediate versions.
To upgrade your SAN one version of Xsan at a time:
1 Run the update installer for the next version of Xsan on the controller computer.
(For example, if you are currently running Xsan 1.2, run the installer for Xsan 1.3.)
If the controller is connected to the Internet, you can open the Software Update pane
of System Preferences, click Check Now, select the Xsan update with the appropriate
version number, and click Install.
If the controller is on a private network, you can use a computer that is connected to
the Internet to download the update from www.apple.com/support/downloads/,
transfer the installer to the controller computer, and run it.
2 Restart the controller computer when prompted.
3 Repeat steps 1 and 2 above for each controller on your SAN.
4 Upgrade a client to the next version of Xsan.
If the computer is connected to the Internet, you can open the Software Update pane
of System Preferences, click Check Now, select the Xsan update with the appropriate
version number, and click Install.
If the computer is on a private network, you can use a computer that is connected to
the Internet to download the update from www.apple.com/support/downloads/,
transfer the installer to the client computer, and run it.
5 Restart the client when prompted by the installer.
6 Repeat steps 4 and 5 above for each client on your SAN.
7 If all your controllers and clients are now running Xsan 1.3, go on to Step 4 on the next
page. Otherwise, repeat steps 1 through 6 above to upgrade your SAN computers to
the next version of Xsan.