HP StorageWorks Fabric OS 5.2.3 Release Notes (AA-RWEYD-TE, November 2007)

IMPORTANT:

TheB-SeriesMPRouterblade(forusewiththe4/256Directoronly)mustrunFabricOS5.1.0dorlater.

Note that the Core Switch 2/64 does not support the B-Series MP Router blade.

Firmware upgrade instructions

IMPORTANT:

This release is targeted towards customers who are not yet prepared to upgrade to Fabric OS 5.3.x. For

those customers, it is recommended to upgrade to this 5.2.3 release. F or other customers, upgrading to

the latest 5.3.x release is highly recommended in orde r to get the beneﬁt of further features and ﬁxes (see

latest 5.3.x release notes for detail s). Note that HP is not supporting Fabric OS 5.2.3 on the blade switch

for c-Class BladeSystem (see Supported product models for speciﬁcsupport).

To access the latest Fabric OS 5.2.3 ﬁrmware, conﬁguration ﬁles, and MI B ﬁles, go to the following HP

web site: h

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

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

an MTU value of up to 2348. P rior to downgrading Fabric OS to 5.1.1 the user must change the MTU

size less than or e qual 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:

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

to F abr ic OS 5.2 .0a or later.

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

from Fabric OS 5.0.x to 5.2.3 is suppor ted, but upgrading from Fabric OS 4.4.0 or a previous release

directly to 5.2.3 is not.

Upgrading a switch from Fabric OS 4.4.0 or a previous release to 5.2.3 requires a two-step process: ﬁrst

upgrade to Fabric OS 5.0.x or 5.1.x and then upgrade to 5.2.3.

The following conditions must be met before upgrading to Fabric OS 5.2.3:

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

aptPolicy comm a nd to verify the routing policy.

• Chassis conﬁguration options 3 and 4 are no longer supported for the 4/256 SAN Director.

CAUTION:

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

5.2.0a, such as FCR trunking, you cannot downgrade b elow Fabric OS 5.2.0a. If you want to do so, you

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

• For any other n ew software features or increased scalability limits supported by Fabric OS 5.2.3,

downgr

ade will be disruptive and require cold reboot.

• A Fabric OS 5.2.3 conﬁguration ﬁle ca nnot be used on the same switch after the swi tch has been

downgraded to ﬁrmware version 5.0.x or 5.1.x.

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

any in

stalled B-Series MP Router blades.

HP StorageWorks Fabric OS 5.2.3 release notes