On a multipath SAN boot server with only one active path from server to storage, there is a potential risk of kernel panic, or the file system becoming read-only when doing storage rescans. This occurs because multipath SAN boot is only supported with full path redundancy. A minimal full path redundancy configuration can be illustrated as:

Server HBA1 --- FC switch 1 ---- Storage controller 1 port1
                             |-- Storage controller 2 port1

Server HBA2 --- FC switch 2 ---- Storage controller 1 port2
                             |-- Storage controller 2 port2

Workaround: Configure multiple paths to the file systems, instead of a single path.

Bug 13774291