HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.2 administrator guide (5697-0 - Page 185

Table 49 Virtual Fabrics interaction with Fabric OS features (continued) Fabric OS feature Interaction with Virtual Fabrics Interoperability mode In interoperability modes 2 and 3, you cannot use XISL in the Logical Fabric. The Logical Switches must be connected only with ISLs. Licensing Licenses are required for all Logical Switches in a chassis. Performance monitoring Performance monitors are supported in a limited number of Logical Switches, depending on the platform type. See Chapter 18, "Administering advanced performance monitoring" on page 405 for more information about performance monitoring when Virtual Fabrics are enabled. Port mirroring Port mirroring is not supported when Virtual Fabrics is enabled. QoS Traffic Isolation QoS VCs are maintained across the base fabric. See Chapter 16, "Optimizing fabric behavior" on page 339 for more information about using the Adaptive Networking features with Virtual Fabrics. Traffic Isolation zones with failover disabled are not supported in Logical Fabrics. See Chapter 16, "Optimizing fabric behavior" on page 339 for additional information about using TI zones with Virtual Fabrics. Limitations and restrictions of Virtual Fabrics The maximum number of Logical Switches per chassis varies depending on the switch model. Table 50 lists the supported platforms and the maximum number of Logical Switches (including the default Logical Switch) supported on each. Table 50 Maximum number of Logical Switches per chassis Platform Maximum number of Logical Switches HP StorageWorks DC SAN 8 Backbone Director HP StorageWorks DC04 SAN 8 Director HP StorageWorks 8/80 SAN 4 Switch HP StorageWorks 8/40 SAN 3 Switch The following are restrictions on the default Logical Switch in the HP StorageWorks DC SAN Backbone Director and HP StorageWorks DC04 SAN Director: • Cannot use extended ISLs (XISLs) • Cannot be a base switch XISL use is not permitted in any of the following scenarios: • The Logical Switch is FICON CUP enabled. • The Logical Switch is operating in interoperability mode 2 or 3. • The Logical Switch has ICL ports. • The Logical Switch is an edge switch for an FC router. • The Logical Switch is using GbE ports (VE_Ports). • The Logical Switch is the default Logical Switch in the HP StorageWorks DC SAN Backbone Director or the HP StorageWorks DC04 SAN Director. To allow or disallow XISL use for a Logical Switch, see "Configuring a Logical Switch for XISL use" on page 187. Fabric OS 6.2 administrator guide 183