HP StorageWorks Fabric OS 5.3.0 Release Notes (AA-RWEYD-TE, July 2007)

Firmware upgrade instructions

IMPORTANT:

HPstronglyrecommendsthatusersupgradetoFabricOS5.3.0assoonaspossible.

To access the latest Fabric OS 5.3.0 ﬁrmware, conﬁguration ﬁles, and MIB ﬁles, go to the following HP

web site: h

ttp://www.hp.com/go/san.

CAUTION:

Install port blades like the HP StorageWorks 4/48 SAN Director Blade (FC4–48) only after upgrading

to Fabric OS 5.2.0a or later.

HP does not support directly upgrading from more than t wo previous releases. For example, upgrading

from Fabric OS 5.1.x to 5.3.0 is supported, but upgrading from Fabric OS 5.0.x or a previous release

directly to 5.3.0 is not.

Upgrading a switch from Fabric OS 5.0.x or a previous release to 5.3.0 requires a two-step process: ﬁrst

upgrade to Fabric OS 5.1.x or 5.2.x and then upgrade to 5.3.0.

The following conditions must be met before upgrading to Fabric OS 5.3.0:

• 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 supported for the 4/256 SAN Director.

• Fabric OS 5.1.1 supports a maximum MTU value of 2284. However , Fabric OS 5.2.1 and 5.3.0

support a n MTU value of up to 2348. Prior to downgrading the Fabric OS to 5.1.1 you must

change the MTU size less than or equal to 2284.

If the conﬁguration of the target unit has an MTU value greater than 2284, the FCIP tunnels will not

go online after ﬁrmware downgrade.

CAUTION:

If the 4/256 SAN Director integrates the FC4–48 blade or any new software features in Fabr ic OS

5.2.0a,suchasFCRtrunking,youcannotdowngradebelowFabricOS5.2.0a.Ifyouwanttodoso,you

must (a) remove these features, (b) physically remove the blade, and then (c) downgrade the ﬁrmware.

• For any other new software features or increased scalability limits supported by Fabric OS 5.3.0,

downgrade will b e disruptive and require cold reboot.

• AFabricOS5.3.0conﬁguration ﬁle cannot be used on the same switch after the switch has been

downgraded to ﬁrmware version 5.1.x or 5.2.x.

• When you downgrade to Fabric OS 5.0.x, you must also remove additional 5.1.x features and

any installed B-Series MP Router blades.