HP StorageWorks Fabric OS 6.2 administrator guide (5697-0016, May 2009)

364 Optimizing fabric behavior
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.
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.
= High priority
Chassis 1 Chassis 2
H1
S1
Domain 1
Domain 2
Base switch
Domain 9
LS2, FID3
Domain 6
LS1, FID1
Domain 5
Base switch
Domain 10
LS4, FID3
Domain 8
LS3, FID1
Domain 7
Domain 3
= E_Ports with QoS enabled
12
1
8
5
3
8
16
14
10
9
11
13
15
17
7
6
4
2