HP StorageWorks 1606 HP StorageWorks Fabric OS 6.3.0a release notes (5697-0359 - Page 29
Virtual Fabrics, Licensing behavior
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• To support nondisruptive firmware upgrades on the DC SAN Backbone Director/DC04 SAN Director, a new service, ethsw, is being introduced to enable Ethernet switching on the DC SAN Director Switch 10/24 FCoE Blade in Fabric OS 6.3. LAN switching is disabled by default in Fabric OS 6.3. The user must explicitly enable Ethernet switch service using the command fosconfig -enable ethsw to prevent FC traffic interruption. • Upgrading from Fabric OS 6.x to 6.3 is nondisruptive. You can enable ethsw after upgrading without interrupting FC traffic. Upgrading the 2408 FCoE Converged Network Switch from Fabric OS 6.1.2_cee1 to 6.3 will disrupt the FC traffic. A firmware download of FOS 6.3 to another version with HP StorageWorks DC SAN or DC04 SAN Directors with one or more DC SAN Director Switch 10/24 FCoE blades installed will disrupt traffic through the blade. HA Failover of CP blades in either of these directors also results in disruption of traffic through the 10/24 FCoE blades. • Upgrades from Fabric OS 6.3 to future releases will be nondisruptive to data traffic and will have behavior similar to a CP failover; ethsw remains unchanged. • Downgrade from Fabric OS 6.3 to 6.1.2_cee1 is disruptive if ethsw is enabled on Fabric OS 6.3. • Downgrade from Fabric OS 6.3 to 6.1.2_cee1 is nondisruptive if ethsw has never been enabled with Fabric OS 6.3. • Connecting a 2408 FCoE Converged Network Switch to an FCR-capable switch with fcrbcast config enabled will cause a storm of broadcast traffic, resulting in termination of iswitchd. Virtual Fabrics • On VF-capable platforms, the VF feature (initially supported with Fabric OS 6.2.0a) must be enabled in order to utilize the related capabilities, including logical switches and logical fabrics. • When creating logical fabrics that include switches that are not VF-capable, it is possible to have two logical switches with different FIDs in the same fabric. Be sure to verify that the FIDs match for all switches in the same logical fabric. • In order to support nondisruptive HCL on an 8/40 SAN Switch with VF enabled, the total zoning DB size for the entire chassis should not exceed 1 MB. Otherwise, ports may be re-initialized, causing frame drops during an HCL if the switch has a zoning database that is 1 MB or larger. • A switch with VF enabled cannot participate in a fabric that uses IP filter or password database distribution or administrative domains. You must disable the VF feature before deploying it in a fabric that uses these features. • VF is not supported on the 1606 Extension SAN switch. • VF-dedicated ISLs are supported on the DC SAN Director Switch Multiprotocol Extension Blade. XISLs are not supported. • On an HP StorageWorks 8/40 SAN switch with Virtual Fabrics enabled, ports may be re-initialized causing frame drops during a hot code load if the switch has a zoning database that is 1MB or larger in size. To prevent this from occurring, ensure the zoning database is less than 1MB when activating new firmware. Licensing behavior When operating a switch with Fabric OS 6.3.x, some licenses may be displayed as Unknown. This is due to changes in licensing requirements for some features that no longer require a license key and may still be installed on a switch. HP StorageWorks Fabric OS 6.3.0a release notes 29
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