HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.3.0b Release Notes (AA-RWEYF - Page 9

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 two previous releases. For example, upgrading from Fabric OS 5.1.x to 5.3.0b is supported, but upgrading from Fabric OS 5.0.x or a previous release directly to 5.3.0b 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 5.3.0b. The following conditions must be met before upgrading to Fabric OS 5.3.0b: • 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 supported for the 4/256 SAN Director. • Fabric OS 5.1.1 supports a maximum MTU value of 2284. However, Fabric OS 5.2.1x and 5.3.0x support an 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 Fabric OS 5.2.0a, such as FCR trunking, you cannot downgrade below 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 new software features or increased scalability limits supported by Fabric OS 5.3.0b, downgrade will be disruptive and require cold reboot. • A Fabric OS 5.3.0b configuration 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. Important notes Table 2 provides information relevant to the release of Fabric OS 5.3.0b. Table 2 Important release information Topic ipfilter command PKI certification Description Starting with Fabric OS version 5.3.0, you can use the ipfilter command to block unauthorized Telnet access. The option to disable Telnet using the configure command is no longer available. Use the following command to create a policy to block Telnet access to any station: ipfilter --create blockTelnet -type ipv4 ipfilter --addrule blockTelnet -sip any -dp 23 -proto tcp -act deny ipfilter -- activate blockTelnet Use the following command to restore default policies for IPv4: ipfilter --activate default_ipv4 -- See the Fabric OS 5.3.0 command reference guide for more information on the ipfilter command. If you have purchased and installed the Secure Fabric OS option, go to the following web site for information on obtaining a PKI certificate: http://www.hp.com/storage/go/secureos. HP StorageWorks Fabric OS 5.3.0b release notes 9