A host cannot recognize FC-SAN storage block devices. How do I resolve this?
Solution
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Try the following approaches:
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Verify that all hosts in the cluster can recognize the same LUN device information.
Run
multipath -llto check whether the multipath output is consistent across all hosts. -
If the output is inconsistent, run
rescan-scsi-bus.sh -aon the affected host to rescan the SAN storage. -
Verify that the host can now recognize the FC-SAN storage block devices.