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FAS2240: Multifabric single-controller configuration

You can connect hosts to one controller using 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.

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 in the SAN configuration between the two models.
Figure 1. FAS2240 multifabric single-controller configurationFigure shows a single controller connected to two FC switches. FC port 1a connects to one switch and FC port 1b connects to the other switch. Multiple hosts also connect to the switches.
Attribute Value
Fully redundant No, due to the single controller
Type of fabric Multifabric
Different host operating systems Yes, with multiple-host configurations
FC ports or adapters Both ports on the supported 2-port 8-Gb FC expansion adapter configured as targets
Type of configuration Single-controller configuration