About the Xsan 1.1 Updates

There are three different software updates available for Xsan 1.1. These updates apply to Mac OS X client and Server versions 10.3.9 and later.

Installation

The following updates are available for Xsan 1.1, which can be installed using Software Update or by downloading a standalone update installer from Apple Downloads:

• Xsan 1.1 Update for 10.3.9
• Xsan 1.1 Update for 10.4
• Xsan Admin 1.1 Update

Of the first two, you only need to install the one that corresponds to your operating system version (an upgrade scenario is an exception). The third is required for Xsan 1.1 administration (and is also recommended for Xsan 1.0 administration) but only needs to be installed on admin computers.

Software Update Installation
Software Update may have referred you to this document. For more information on using this feature, see "Mac OS X: Updating your software."

Because some updates are prerequisites for others, you may need to use Software Update more than once to get all available updates.

Standalone Installer
A standalone installer is also available from Apple Downloads .

Remote Installation
If you need to install the update on a remote computer, you can do so using the "softwareupdate" command-line tool.

Enhancements

The following items are some of the enhancements and improvements included in each Xsan 1.1 update:

Xsan Admin 1.1 Update
This update improves reliability for remotely administering, configuring, and maintaining Xsan 1.1 deployments. It includes fixes for:

• Labeling Fibre Channel LUNs and creating new Xsan volumes.
• Displaying progress messages while performing lengthy operations.
• Preventing manually modified configuration settings from being overwritten during a save.
• Accurately reporting Fibre Channel multipathing errors.
• Lock View command in Xsan Admin 1.1 can now monitor a SAN from an unsecured computer without the risk of a passerby mounting, unmounting, starting, or stopping volumes, or otherwise changing the SAN configuration.
• Improvements to email notifications will now alert you if the Xsan software serial number on a controller or client is about to expire.
• Now allows the use of site-licensed product license keys (serial numbers).

Xsan 1.1 Update for 10.4.1 or later
This update improves reliability for Xsan, and is required for all systems with Mac OS X 10.4.1 or later. It includes fixes for:

• Using Xsan on computers with Mac OS X and Mac OS X Server versions 10.4.1 or later.
• Providing metadata controller services to Mac OS X 10.3.9 or later systems with Xsan 1.1.
• Accessing Xsan volumes larger than 16 terabytes in size (up to 1024 terabytes).
• Greater server stability when resharing Xsan volumes through NFS.
• Handling quotas with no associated user or group name.
• Maintaining access to Xsan volumes when metadata controller failovers occur.
• Operating Xsan in environments with a mix of Mac OS X 10.3.9 and 10.4 systems.

Important: If any client system in your SAN is running Xsan 1.1 on Mac OS X 10.4 or later, then your metadata controllers (MDCs) must also be updated to 10.4 or later. Otherwise, Xsan will not work properly.

Xsan 1.1 Update for 10.3.9
This update improves reliability for Xsan, and is recommended for all systems with Mac OS X 10.3.9. It includes fixes for:

• Greater server stability when resharing Xsan volumes through NFS.
• Handling quotas with no associated user or group name.
• Maintaining access to Xsan volumes when metadata controller failovers occur.
• Operating Xsan in environments with a mix of Mac OS X 10.3.9 and 10.4 systems.

Documentation

Xsan 1.1 includes new documentation, which you can get here. Be sure to read the Xsan 1.1 Administrator's Guide as well as the Xsan Migration Guide for Xsan 1.1, which includes step-by-step instructions for upgrading from Xsan 1.0 to Xsan 1.1.