[dm-devel] Multipath setup and rdac questions

[Christian Røsnes]

On Thu, Feb 5, 2009 at 8:16 PM, Bryn M. Reeves <bmr at redhat.com> wrote:

> Christian Røsnes wrote:
>
>> # multipath -ll
>> mpathe (36002219000918b4c00005b6c497e6632) dm-4 DELL,MD Virtual Disk
>> [size=5.5T][features=1 queue_if_no_path][hwhandler=1 rdac]
>> \_ round-robin 0 [prio=6][active]
>>  \_ 9:0:0:1  sdi 8:128 [active][ready]
>>
>
> That looks better! Seems like device-mapper multipath is configuring these
> OK now. You might want to just check that mpp is fully disabled if you're
> going with device-mapper (and also test some cable-pulls to make sure the
> RDAC failover happens properly) but this is certainly picking up your hw
> handler configuration now.
>
>
Ok. I'll look into disabling mpp, and test the device-mapper failover by
pulling cables and manually switching controller modules during
disk access.

Thank you.
Christian
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