On Mon, 24 Aug 2009 11:41:34 -0400 (EDT) Charlie Brady <charlieb-dm-devel@xxxxxxxxxxxxxxxxxx> wrote: > I know that other people here will know more detail, but I think you > have another alternative which might be superior. > > Instead of changing the initiator configuration to use AVT, you > should tune the device mapper to use RDAC. > > To do that, I think you will need to adjust both the multipathd > configuration and recompile the scsi_dh_rdac kernel module after > adding support for "SUN"/"LCSM100_S". > > Here's the RDAC multipath.conf I am using with a StorageTek 2510: > > http://www.linux-archive.org/device-mapper-development/323661-multipathd-configuration-sun-storagetek-2510-a.html Aug 24 20:25:55 node03 kernel: device-mapper: multipath: Failing path 8:16. Aug 24 20:25:55 node03 multipathd: 8:16: mark as failed Aug 24 20:25:55 node03 multipathd: qd: remaining active paths: 1 Aug 24 20:25:55 node03 multipathd: dm-0: add map (uevent) Aug 24 20:25:55 node03 multipathd: dm-0: devmap already registered Aug 24 20:25:55 node03 kernel: sd 1:0:1:0: queueing MODE_SELECT command. Aug 24 20:25:56 node03 qdiskd[5325]: <notice> Score sufficient for master operation (1/1; required=1); upgrading Aug 24 20:26:02 node03 multipathd: 8:16: reinstated Aug 24 20:26:02 node03 multipathd: qd: remaining active paths: 2 Aug 24 20:26:02 node03 multipathd: qd: switch to path group #1 Aug 24 20:26:02 node03 multipathd: qd: switch to path group #1 Aug 24 20:26:02 node03 multipathd: dm-0: add map (uevent) Aug 24 20:26:02 node03 multipathd: dm-0: devmap already registered Aug 24 20:26:05 node03 kernel: device-mapper: multipath: Failing path 8:16. Aug 24 20:26:05 node03 multipathd: 8:16: mark as failed Aug 24 20:26:05 node03 multipathd: qd: remaining active paths: 1 Aug 24 20:26:05 node03 multipathd: dm-0: add map (uevent) Aug 24 20:26:05 node03 multipathd: dm-0: devmap already registered Aug 24 20:26:05 node03 kernel: sd 1:0:1:0: queueing MODE_SELECT command. Aug 24 20:26:12 node03 multipathd: 8:16: reinstated Aug 24 20:26:12 node03 multipathd: qd: remaining active paths: 2 Aug 24 20:26:12 node03 multipathd: qd: switch to path group #1 Aug 24 20:26:12 node03 multipathd: qd: switch to path group #1 Aug 24 20:26:12 node03 multipathd: dm-0: add map (uevent) Aug 24 20:26:12 node03 multipathd: dm-0: devmap already registered Aug 24 20:26:15 node03 kernel: device-mapper: multipath: Failing path 8:16. Aug 24 20:26:15 node03 multipathd: 8:16: mark as failed Aug 24 20:26:15 node03 multipathd: qd: remaining active paths: 1 Aug 24 20:26:15 node03 multipathd: dm-0: add map (uevent) Aug 24 20:26:15 node03 multipathd: dm-0: devmap already registered Aug 24 20:26:15 node03 kernel: sd 1:0:1:0: queueing MODE_SELECT command. So, your configuration fills my logs too :( I don't know if this is supposed to behave this way or not... I'm lost now :( -- | Jakov Sosic | ICQ: 28410271 | PGP: 0x965CAE2D | ================================================================= | start fighting cancer -> http://www.worldcommunitygrid.org/ | -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
