[dm-devel] Multipath setup and rdac questions

[Christian Røsnes]

On Thu, Feb 5, 2009 at 8:29 PM, Chandra Seetharaman <sekharan at us.ibm.com>wrote:

>
> On Thu, 2009-02-05 at 19:48 +0100, Christian Røsnes wrote:
>
> >
> > Is mpp another type of rdac driver than the one in question here ?
>
> Yes, MPP is a standalone out-of-tree driver provided by LSI to support
> the rdac devices.
>
> Now that rdac support is available in mainline and distro, you do not
> need to use them anymore.
>
> MPP driver sits below the SCSI layer and  manages all the
> failover/failback. It takes the MD3000i devices and provides the
> "virtual disk" to the SCSI layer. That is the reason why you do not see
> the MD3000i from user space.
>
> Once you remove the mpp driver and use the multipathy.conf provided by
> Babu, you should see the behavior you expect.
>
>
Ok. I will remove the mpp driver.

Thank you
Christian
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