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From: "Bryn M. Reeves" <bmr@redhat.com>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: Multipath setup and rdac questions
Date: Thu, 05 Feb 2009 19:11:38 +0000	[thread overview]
Message-ID: <498B39EA.1070903@redhat.com> (raw)
In-Reply-To: <1a4a774c0902051048keb6e681g7dbf2643a88a6d9e@mail.gmail.com>

Christian Røsnes wrote:
> Is mpp another type of rdac driver than the one in question here ?

I have no real experience with MPP so there are probably others who 
can give more details but MPP is an entirely separate 3rd-party 
multipath driver framework, a bit like EMC's PowerPath or other 
vendor's multipathing solutions. Afaik, it supports several types of 
device including RDAC.

Part of your problem appears to be that you are trying to use /both/ 
mpp and device-mapper multipath on the same system at the same time. 
Since they both try to do the same job this is guaranteed to lead to 
problems - you need to chose one or the other & get it correctly 
configured for your hardware.

Regards,
Bryn.

  reply	other threads:[~2009-02-05 19:11 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-05 13:58 Multipath setup and rdac questions Christian Røsnes
2009-02-05 15:07 ` Bryn M. Reeves
2009-02-05 17:37   ` Moger, Babu
2009-02-05 17:44     ` Bryn M. Reeves
2009-02-05 17:51       ` Moger, Babu
2009-02-05 17:52       ` Moger, Babu
2009-02-05 19:13     ` Christian Røsnes
2009-02-05 19:16       ` Bryn M. Reeves
2009-02-05 19:23         ` Christian Røsnes
2009-02-05 18:48   ` Christian Røsnes
2009-02-05 19:11     ` Bryn M. Reeves [this message]
2009-02-05 19:29     ` Chandra Seetharaman
2009-02-05 19:30       ` Christian Røsnes
2009-02-05 18:56   ` Christian Røsnes
2009-02-05 19:13     ` Bryn M. Reeves

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