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(FC) LUNs are unavailable after a storage system failover or giveback

The host requires specific driver, HBA, and FC switch zoning settings to maintain LUN access across a storage system takeover, giveback, and reboot. You should confirm that you have set the required driver and HBA settings. Also, verify that you have correctly zoned your FC switches.

For multipath LUNs, you can restore access to the LUNs by restarting the multipathing daemon and updating the multipathing maps by running the following commands: