From: Lars Marowsky-Bree <lmb@suse.de>
To: linux-raid@vger.kernel.org
Subject: Re: monitoring multipath arrays plus inconsistent /proc/mdstat?
Date: Fri, 22 Oct 2004 11:17:19 +0200 [thread overview]
Message-ID: <20041022091719.GF3911@marowsky-bree.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0410220739480.13142-100000@lajli.gau.hu>
On 2004-10-22T07:41:37, Lajber Zoltan <lajbi@lajli.gau.hu> wrote:
(Your mailer is messing up the To: line. Please fix.)
> > > Whom to trust here? How do we monitor multipath arrays effectively?
> > On 2.6, use multipath-tools, which are seeing active development.
> > multipath storage is being moved to the Device-Mapper in 2.6.
> Is it stable? the version number increasing quite rapidly...
Well, it's actively being developed right now, as always.
> I woud like to use it with emc clariion, dual HBA (qlogic) environment.
EMC CLARiiON active/passive failover support is forthcoming.
> Afaik emc powerpath dont's support 2.6.x kernels, is it?
No, and as far as I know, it's not going to.
I got technical docs + a CX500 from EMC for developing the CLARiiON
support and am busy with just that (if I wasn't writing this mail ;-).
The commandline tools have already been merged upstream, so if you use
sg3_utils, you'll find that sg_inq is able to decode the EMC-specific
Unit Path Report Page and that you can manually switch
Service-Processors for a LUN using the sg_emc_trespass command.
Alasdair and I are ping-ponging patches for the dm-mpath.c, and I think
we should have it done fairly soon...
Sincerely,
Lars Marowsky-Brée <lmb@suse.de>
--
High Availability & Clustering
SUSE Labs, Research and Development
SUSE LINUX AG - A Novell company
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next prev parent reply other threads:[~2004-10-22 9:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-21 16:16 monitoring multipath arrays plus inconsistent /proc/mdstat? Anu Matthew
2004-10-21 16:51 ` Lars Marowsky-Bree
2004-10-22 5:41 ` Lajber Zoltan
2004-10-22 9:17 ` Lars Marowsky-Bree [this message]
2004-10-22 20:44 ` Anu Matthew
2004-10-22 21:25 ` Lars Marowsky-Bree
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