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From: Lars Marowsky-Bree <lmb@suse.de>
To: device-mapper development <dm-devel@redhat.com>,
	christophe varoqui <christophe.varoqui@free.fr>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: Re: [dm-devel] [multipath] SCSI device capacity mess
Date: Thu, 28 Oct 2004 13:37:28 +0200	[thread overview]
Message-ID: <20041028113728.GT32712@marowsky-bree.de> (raw)
In-Reply-To: <1098914250.1588.1.camel@mulgrave>

On 2004-10-27T17:57:21, James Bottomley <James.Bottomley@SteelEye.com> wrote:

> It's not occasional, it happens every time a single machine in the
> cluster reboots and the HSG80 can take a while to transfer luns. 
> Configure one with several hundred luns in a 32 node cluster and you'll
> see why this flag exists...

While we are at that, ghost (or non-active) paths lead to _tons_ of
errors while the kernel stubbornly tries to read the partition table,
totally flooding any useful information out of the kernel buffers.

Can't we do a test-unit-ready before trying to read and then just not
read the partition table w/o so much noise?


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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  reply	other threads:[~2004-10-28 17:54 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-26 23:27 [multipath] SCSI device capacity mess christophe varoqui
2004-10-26 21:34 ` James Bottomley
2004-10-26 21:46   ` christophe varoqui
2004-10-27  8:17 ` [dm-devel] " Lars Marowsky-Bree
2004-10-27  8:42   ` Lars Marowsky-Bree
2004-10-27 18:51     ` Bryan Henderson
2004-10-29 14:12       ` Lars Marowsky-Bree
2004-10-29 16:48         ` Bryan Henderson
2004-10-27 19:02   ` christophe varoqui
2004-10-27 19:37     ` Eddie Williams
2004-10-27 20:19       ` christophe varoqui
2004-10-27 20:34         ` Greg Freemyer
2004-10-27 20:28     ` Philip R Auld
2004-10-27 21:57     ` James Bottomley
2004-10-28 11:37       ` Lars Marowsky-Bree [this message]
2004-10-28 18:14         ` Patrick Mansfield
2004-10-28 18:21           ` Lars Marowsky-Bree
2004-10-30  0:41             ` Patrick Mansfield
2004-10-30  1:01               ` Patrick Mansfield
2004-10-30  7:21               ` christophe varoqui
2004-10-30  8:22                 ` christophe varoqui
2004-11-02 15:23                 ` Lars Marowsky-Bree
2004-10-28 11:35     ` Lars Marowsky-Bree

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