Apple Xsan (upgrading to Xsan 1.4) - Manual (Page 23)

Appendix Upgrading to Xsan 1.1 on Mac OS X version 10.4 23
Step 4: Upgrade standby controllers to Xsan 1.1 on Mac OS X v10.4.7 or later
Now you can upgrade your controllers to Xsan 1.1 on Mac OS X (or Mac OS X Server)
v10.4.7 or later.
Important: If you want your SAN volumes to be available to clients during the upgrade,
upgrade your standby controllers one at a time so there is always a standby controller
ready to take control of any volume currently hosted by the controller you are
upgrading.
To upgrade your standby controllers to Xsan 1.1 on Mac OS X v10.4.7 or later:
1 Insert the Mac OS X version 10.4 software installation disc in a standby controller
computer and double-click the Install Mac OS X icon.
2 When you reach the Select Destination pane of the installer, click Options and select
Upgrade Mac OS X.
Important: Be sure to select the upgrade installation, not the clean installation. If you
perform a clean installation of the operating system, the controller will lose its copy of
the Xsan configuration files.
3 Restart the controller computer when prompted by the installer.
4 Upgrade the controller to Mac OS X v10.4.7 or later.
If the controller is connected to the Internet, you can open the Software Update pane
of System Preferences, click Check Now, and install the Mac OS X (or Mac OS X Server)
v10.4.7 (or later) update.
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.
5 Upgrade the standby controller to Xsan 1.1.
If you have an Xsan 1.1 installation disc, insert it in the computer and double-click the
installation package Install Xsan.mpkg.
If you don’t have the disc but the computer is connected to the Internet, you can open
the Software Update pane of System Preferences, click Check Now, select the Xsan
version 1.1 update, 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.
6 Restart the controller when prompted by the installer.
7 Repeat steps 1 through 6 above for each additional standby controller on your SAN.