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FAS2240: Direct-attached HA pair

You can connect hosts directly to FC target ports on both controllers in an HA pair. The number of hosts is limited by the number of available target ports.

If you use multiple paths to a LUN, multipathing software is required on the host.

Direct-attached configurations typically need the FC ports set to auto mode. Be sure to follow the recommendation of your host operating system provider for FC port settings. You can use the fcp config mediatype command to set the target ports; see the fcp man page for more information about that command.

Note: The following illustration shows the storage controllers side by side, which is how they are mounted in the FAS2240-2. For the FAS2240-4, the controllers are mounted one above the other. There is no difference between the SAN configurations for the two models.
Figure 1. FAS2240 direct-attached HA pairFigure shows two storage controllers with FC port 1a from each to the first host and FC port 1b from each to a second host.
Attribute Value
Fully redundant Yes
Type of fabric None
Different host operating systems Yes, with multiple-host configurations
FC ports or adapters One or two ports on the 2-port 8-Gb FC expansion adapter configured as targets on each controller
Type of configuration HA pair