[dm-devel] Sun StorageTek 2530 and dm?

[Jakov Sosic]

On Mon, 24 Aug 2009 11:41:34 -0400 (EDT)
Charlie Brady <charlieb-dm-devel at budge.apana.org.au> 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 :(


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