I have a weird issue.
sles 11 emulex FC netapp fas 2xxx
100G LUN is ok. Multipath enabled, multipathd and device-mapper seem to work properly.
multipath -t shows this output of the config => http://pastebin.com/bmEBhdeX
When both FC are connected I get this output from multipath -ll
360a98000572d5073538f68484c4c512f dm-0 NETAPP,LUN [size=200G][features=1 queue_if_no_path][hwhandler=0][rw] _ round-robin 0 [prio=8][active] _ 1:0:0:70 sdc 8:32 [active][ready] _ 2:0:0:70 sde 8:64 [active][ready] _ round-robin 0 [prio=2][enabled] _ 1:0:1:70 sdb 8:16 [active][ready] _ 2:0:1:70 sdd 8:48 [active][ready]
When I unplug one FC everything goes fine.
The issue appears when connecting again, on the desktop a sdb or sdc "device is busy" . And then it does not appear on multipath -ll.
I though it could be that automount or similar tries to mount the sdb or sdc device, put they are not in the fstab and automount is not running.
PD: Just in case you are curious the messages file => http://pastebin.com/2PfxSDKE (look arround 13pm and 15pm.