How to get rid of or remove the multipath device without rebooting the server, rescanning the scsi bus, or restarting multipathd
Issue
- Unable to remove the multipath device after unmapping the LUN from the server.
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Attempting to flush a multipath map with "multipath -f" or "multipath -F" results in "map in use":
# multipath -f mpath7 mpath7: map in use
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The multipath command still shows the multipath device, with path(s) to the unmapped LUN as follows:
# multipath -ll mpath7 mpath7 (36090a01870982994dcb8d4405ed03cbf) dm-7 , [size=4.4T][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=0][enabled] \_ #:#:#:# - #:# [failed][faulty]
Environment
- Red Hat Enterprise Linux 5, 6
- Device mapper multipath
- SAN connected storage
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