HP StorageWorks Fabric OS 5.2.0b Release Notes (AA-RWEYB-TE, February 2007)

In addition, the following conditions must be met before upgrading to Fabric OS 5.2.0b:

• Device-based routing must not be in use, otherwise the upgrade will fail. You can

use the aptPolicy command to verify the routing policy.

• Chassis configuration options 3 and 4 are no longer sup ported for the 4/256

SAN Director

Additional notes on Fabric OS 5.2.0b firmware upgrade/downgrades include:

• HP supports downgrading up to two previous releases, for example, if you

upgrade to Fabric OS 5.2.0b from 5.0.x, you can revert back to 5.0.x. However,

you cannot downgrade from Fabric OS 5.2.0b to 4.4.0 or to a previous release.

NOTE:

If the 4/ 256 SAN Director has FC4-48 blades installed or any new software

features in Fabric OS 5.2.0a, such as FCR trunking, you cannot downgrade below

Fabric OS 5.2.0a. If you wish to do so, you must a) remove these features, b)

physically remove the blade, and then c) downgrade firmware.

• For any other new software features or increased scalability lim its supported by

Fabric OS 5.2.0b, downgrade will be disruptive and requires cold reboot.

• A Fabric OS 5.2.0b configuration file cannot be used on the same switch after

the switch has been downgraded to firmware version 5.0.x or 5.1.x.

• When you downgrade to Fabric OS 5.0.x, you will also need to remove

additional 5.1.x features (and any installed B-Series MP Router blades). The

firmwareDownload comm and will guide you to remove any features and

blades that need to be removed.

Fabric OS 5.2.0b