HP StorageWorks 8/8 HP StorageWorks Fabric OS 6.2 administrator guide (5697-00 - Page 366

Domain 1 Domain 3 8 H1 1 2 9 S1 5 6 Chassis 1 3 4 LS3, FID1 Domain 7 LS4, FID3 Domain 8 10 Base switch Domain 10 11 Domain 2 12 14 13 15 = High priority = E_Ports with QoS enabled 8 7 LS1, FID1 Domain 5 LS2, FID3 16 Domain 6 Base switch Domain 9 17 Figure 58 Traffic prioritization in a Logical Fabric Supported configurations for traffic prioritization Note the following configuration rules for traffic prioritization: • All switches in the fabric must be running Fabric OS 6.0.0 or later. Chassis 2 IMPORTANT: If QoS traffic crosses an ISL for a switch running a firmware version earlier than Fabric OS 6.0.0, the frames are dropped. • By default, all devices are assigned medium priority. • To be assigned high or low priority, hosts and targets must be connected to one of the following: • HP StorageWorks 8/8 or 8/24 SAN Switches • HP StorageWorks 8/40 SAN Switch • HP StorageWorks 8/80 SAN Switch • HP StorageWorks SAN Director 16 Port 8Gb FC blade • HP StorageWorks SAN Director 32 Port 8Gb FC blade, or HP StorageWorks SAN Director 48 Port 8Gb FC blade in the HP StorageWorks DC SAN Backbone Director or HP StorageWorks DC04 SAN Director Switch platform. • To preserve the priority level across ISLs, the switches must be running Fabric OS 6.0.0 or later and must be one of the following platforms: • HP StorageWorks 8/8 and 8/24 SAN Switches • HP StorageWorks SAN Switch 4/32 • HP StorageWorks 4/64 SAN Switch • HP StorageWorks SAN Switch 4/32B • HP StorageWorks 8/40 SAN Switch • HP StorageWorks 8/80 SAN Switch • HP StorageWorks 400 Multi-Protocol Router • HP StorageWorks 4/256 SAN Director • HP StorageWorks DC SAN Backbone Director • HP StorageWorks DC04 SAN Director Switch. 364 Optimizing fabric behavior