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62xx: Multifabric HA configurations

You can connect hosts to both controllers in an HA configuration through two or more FC switch fabrics for redundancy.

If you use multiple paths to a LUN, multipathing software is required on the host. FC switch zoning or portsets are recommended to limit the number of paths between hosts and LUNs in configurations with multiple target ports connected to the same fabric. Portsets can be used to help limit the paths that can be used to access LUNs on the controllers.

Note: The FC target port numbers in the following figure (0a, 0b, 0c, and 0d) are examples. The actual port numbers might vary depending on whether you are using onboard ports or FC target expansion adapters. If you are using FC target expansion adapters, the target port numbers also depend on the expansion slots into which your target expansion adapters are installed.
Figure 1. 62xx multifabric HA configurations
Attribute Value
Fully redundant Yes
Type of fabric Multifabric
Different host operating systems Yes, with multiple-host configurations
FC ports or adapters One to the maximum number of supported onboard FC ports per controller

One to the maximum number of supported 4-Gb, 8-Gb, or 16-Gb FC target expansion adapters

Type of configuration HA configuration