HP StorageWorks SAN Virtualization Services Platform Administrator Guide (5697-0934, May 2011)

NOTE:
• The zoning templates shown in this section refer to a single domain with DPM pair
configurations that have two or four licensed quads on the DPM. The rules and guidelines
described in this section can be applied to other configurations with multiple domains or DPM
pairs with a different number of licensed quads.
• All examples involving storage related zones in this section will use the HP EVA and HP
Command View EVA. The rules and guidelines described in this section can be applied to
configurations containing other types of multi-controller storage arrays. Zoning for the
management station to the storage device is not discussed.
Dual-fabric device configuration
HP SVSP must be deployed over a dual-fabric SAN configuration. Switches in each network are
required to be from a single vendor, although each fabric can have switches from a different
vendor. As much as possible, the fabrics should be mirror images of each other. In this section the
dual-fabric layout is referred to as the blue-fabric and the red-fabric. From a connectivity point of
view, each zone in the blue-fabric (blue zone) should have a corresponding zone in the red-fabric
(red zone) that contains the same target and initiator devices as well as number of ports for each
device. At the sub-device level, the ports of each component in the device should also be split
evenly over the mirroring fabrics. For example, a host with a single dual-port HBA should have
one port mapped to a red zone and the other port mapped to a blue zone. Similarly, in a
dual-controller storage device with two ports per controller (for example, the HP EVA4400), each
controller should have a port mapped to a red zone and the other mapped to a blue zone. Each
device deployed within an HP SVSP configuration must have at least two physical ports to provide
the capability to split the device symmetrically over the dual-fabric. Figure 7 (page 35),
Figure 8 (page 35), Figure 9 (page 35), and Figure 10 (page 36) show the dual-fabric device
configuration for each HP SVSP device type.
Figure 7 Dual-fabric port configuration for 4–port and 8–port dual-controller back-end storage
devices
Figure 8 DPM dual-fabric port configuration
Notice how each DPM quad has a target and initiator on both the red and blue fabrics.
Figure 9 Single VSM dual-port configuration
Dual-fabric device configuration 35