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Re: [dm-devel] Multipath setup and rdac questions





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