HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.3.1b release notes (5697-764 - Page 12

Topic HA Fabric Merge Scalability FRU insertion System boot Performance Monitoring Management - Proxy switches FCIP portcfgdefault command function change for the Brocade 4Gb SAN Switch for HP c-Class BladeSystem Broadcast Zones Description If there is an already segmented port and backbone devices are exported to an edge fabric, a build fabric/fabric reconfiguration can occur after running haFailover. Ensure that there no segmented port exist before upgrading firmware. Do not try to merge fabrics with conflicting domain IDs over a VE_Port. Before merging two fabrics over FC-IP with VE_Ports at each end, HP recommends that all domain ID and zoning conflicts be resolved. • Support for Default Zoning policies has been added to Fabric OS 5.1.0. Typically, when you issue the cfgDisable command in a large fabric with thousands of devices, the name server indicates to all hosts that they can communicate with each other. To ensure that all devices in a fabric do not see each other during a cfgDisable operation, you can activate a Default Zone with policy set to no access. If Default zoning policies show enabled, all cfgEnable/disable commands and zoning changes must be run from a switch in the fabric running Fabric OS 5.1.0/5.2.0a. • In large fabrics with more than 1,000 ports, HP recommends that the MS Platform Database be disabled. The Platform DB must also be disabled before downgrading to earlier versions of Fabric OS. This can be done using the msPLMgmtDeactivate command. The FW_FRU_INSERTED message is displayed twice when a power supply FRU is inserted and powered on. There is no functional impact. Not all Fabric OS services run when the prompt becomes available during boot up. Wait for all the services to come up before using the switch or performing zoning actions. If the user tries to save more than 512 monitors using the perfCfgSave command, some of the monitors may be lost. If you using a Fabric OS 4.x switch as an API or SMI-S proxy to manage a 5.1.0 switch, you must be running Fabric OS 4.4.0d. • Frame drops observed on FCIP slow links: • The frame drops occur when the FCIP tunnel bandwidth is set to 10 Base-T (10Mbps), E1 (1.048Mbps), or T1 (1.544Mbps). • With E1 or T1, frames drop even without an impaired link. • With 10 Base-T, frame drops may be observed when a low impairment is put to the link. • The portperfshow command indicated incorrect (smaller) bidirectional throughput on the FCIP tunnel when Fastwrite/Tape Pipelining is enabled. • Fastwrite/Tape Pipelining did not inform user when it failed due to multiple equal paths configured on 2 GbE ports. • Backup jobs initiated from the Symantec BackupExec application slowed noticeably after adding significant I/O traffic from regular hosts and targets to the FCIP tunnel. A port-based routing policy must be used for Tape devices. Beginning with Fabric OS 5.2.1b, the portcfgdefault command now resets the configuration to HP factory default port settings. In Fabric OS 5.3.0 and later, a zone with the name "broadcast" (case-sensitive) is a special zone for setting up recipients of broadcast packets. In Fabric OS versions earlier than 5.3.0, a zone named "broadcast" does not have special significance. Therefore, you must make sure that if a broadcast zone is configured, then the active and standby CPs use the same Fabric OS version. Otherwise an HA failover might change the zone configuration. 12