From: Hannes Reinecke <hare@suse.de>
To: device-mapper development <dm-devel@redhat.com>
Subject: Re: Device-mapper-multipath RDAC
Date: Tue, 25 Sep 2007 07:54:39 +0200 [thread overview]
Message-ID: <46F8A29F.6060803@suse.de> (raw)
In-Reply-To: <200709241706.26322.npf-mlists@eurotux.com>
Nuno Fernandes wrote:
> hello,
>
> Just a question:
>
> With recent support for rdac hardware handler in kernel 2.6.23-rc7, what
> configuration should be in storage DS4700? AVT (Automatic Volume transfer)
> turned on or off?
>
Off. AVT is the acronym for 'Automated Volume Transfer', ie the array tries
to transfer the volumes from one controller to the other automatically.
> When it's turned on, luns keep on jumping from controller to controller..
>
Indeed. That's to be expected.
As a rule:
- With rdac hardware handler: AVT off
- Without hardware handler: AVT on
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
next prev parent reply other threads:[~2007-09-25 5:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-24 16:06 Device-mapper-multipath RDAC Nuno Fernandes
2007-09-24 17:01 ` James Fillman
2007-09-24 17:21 ` Nuno Fernandes
2007-09-24 18:33 ` Chandra Seetharaman
2007-09-25 7:50 ` Nuno Fernandes
2007-09-25 5:54 ` Hannes Reinecke [this message]
2007-09-25 7:52 ` Nuno Fernandes
2007-10-02 17:13 ` Chandra Seetharaman
2008-02-13 22:09 ` Multipath-tools not seeing replaced RAID controller S. J. van Harmelen
2008-02-14 1:30 ` Chandra Seetharaman
2008-02-14 8:04 ` S. J. van Harmelen
2007-09-25 8:05 ` Device-mapper-multipath RDAC Nuno Fernandes
2007-09-25 9:57 ` Device-mapper-multipath RDAC [SOLVED] Nuno Fernandes
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