> -----Original Message----- > From: Rudy Gevaert [mailto:Rudy.Gevaert@xxxxxxxx] > Sent: Friday, December 16, 2011 9:49 AM > To: dm-devel > Subject: how to troubleshoot faulty multipath path? > > Hello, > > I'm running an IBM DS3400 and am seeing a faulty paths: > > mail11-ds3400-1 (3600a0b80005a591a0000042b4cac46de) dm-2 IBM,1726-4xx > FAStT size=550G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw > |-+- policy='round-robin 0' prio=0 status=enabled > | `- 1:0:0:11 sdd 8:48 active faulty running > `-+- policy='round-robin 0' prio=-1 status=active > `- 5:0:0:11 sdr 65:16 active undef running > mail10-ds3400-1 (3600a0b80005a67b60000046a4cac4613) dm-1 IBM,1726-4xx > FAStT size=550G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw > |-+- policy='round-robin 0' prio=0 status=enabled > | `- 5:0:0:10 sdq 65:0 active faulty running > `-+- policy='round-robin 0' prio=-1 status=active > `- 1:0:0:10 sdc 8:32 active undef running > mail15r-ds3400-1 (3600a0b80005a67b60000046d4cac464f) dm-6 IBM,1726-4xx > FAStT size=550G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw > |-+- policy='round-robin 0' prio=0 status=enabled > | `- 5:0:0:15 sdv 65:80 active faulty running > `-+- policy='round-robin 0' prio=-1 status=active > `- 1:0:0:15 sdh 8:112 active undef running My initial guess is, there could be problem with your configuration. Can you paste output of "multipath -ll". How does your multipath.conf look like. Can you paste that as well. You messages file might help also. > > > The storage software says those luns are not 'on the preferred path'. > > I'm a bit clueless where to look next. > > I see on the storage software that other luns are on that controller, so it > seems to me that controller/path is not the problem. > > Where should I look next? I'm afraid that if I change the ownership it will > take the lun offline. > > Thanks in advance, > > Rudy > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
