Re: Sun StorageTek 2530 and dm?

[Chandra Seetharaman <sekharan@us.ibm.com>]

You need to have a stanza similar to following one for your device
in /etc/multipath.conf
--------------------
devices {
        device {
                vendor                  "IBM"
                product                 "1815"
                path_grouping_policy    group_by_prio
                hardware_handler        "1 rdac"
                path_checker            rdac
                failback                immediate
                no_path_retry           queue
                prio_callout            "/sbin/mpath_prio_tpc /dev/%n"
        }
}
---------------------

On Mon, 2009-08-24 at 18:00 +0200, Jakov Sosic wrote:
> On Mon, 24 Aug 2009 17:48:34 +0200
> Jakov Sosic <jakov.sosic@srce.hr> wrote:
> 
> I have this occuring in logs, I presume it is ok?
> 
> Aug 24 17:58:43 node01 multipathd: sdc: readsector0 checker reports
> path is down
> Aug 24 17:58:43 node01 multipathd: checker failed path 8:32 in map
> sas-mysql
> Aug 24 17:58:43 node01 multipathd: sas-mysql: remaining active paths: 1
> Aug 24 17:58:43 node01 kernel: device-mapper: multipath: Failing path
> 8:32.
> Aug 24 17:58:43 node01 multipathd: dm-1: add map (uevent)
> Aug 24 17:58:43 node01 multipathd: dm-1: devmap already registered
> Aug 24 17:58:53 node01 multipathd: sdc: readsector0 checker reports
> path is up
> Aug 24 17:58:53 node01 multipathd: 8:32: reinstated
> Aug 24 17:58:53 node01 multipathd: sas-mysql: remaining active paths: 2
> Aug 24 17:58:53 node01 multipathd: dm-1: add map (uevent)
> Aug 24 17:58:53 node01 multipathd: dm-1: devmap already registered 
> 
> 
> Because multipath -ll says:
> 
> # multipath -ll sas-mysql
> sas-mysql (3600a0b80003abc5c00000b654a916617) dm-1 SUN,LCSM100_S
> [size=115G][features=0][hwhandler=0][rw]
> \_ round-robin 0 [prio=0][active]
>  \_ 1:0:0:1  sdc 8:32  [active][ready]
>  \_ 1:0:1:1  sdf 8:80  [active][ready]
> 
> 
> 
>