Our company produces a multiple port Fibre Channel storage array. We are continually plagued by this problem. We get a dm device which combines paths for different LUN's. We would like to understand why this is happening. Wouldn't this problem almost certainly lead to a data corruption? Thanks, Brian 3624a93700a14254d729923840001000b dm-11 PURE,FlashArray size=500G features='0' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 1:0:0:12 sde 8:64 failed faulty running |- 0:0:0:12 sdd 8:48 failed faulty running |- 0:0:0:10 sdar 66:176 active ready running `- 1:0:0:10 sdba 67:64 active ready running Of the 4 paths to dm-11, we can see two paths are for LUN 10 and the other two are for LUN 12. We have 24 other dm devices which have only the expected 2 paths. Brian Bunker brian@xxxxxxxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel