From: Chandra Seetharaman <sekharan@us.ibm.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Mike Anderson <andmike@us.ibm.com>,
michaelc@cs.wisc.edu, linux-scsi@vger.kernel.org,
James Bottomley <James.Bottomley@HansenPartnership.com>,
dm-devel@redhat.com, jens.axboe@oracle.com
Subject: Re: [PATCH 7/9] scsi_dh: Add support for SDEV_PASSIVE
Date: Mon, 11 Feb 2008 10:27:46 -0800 [thread overview]
Message-ID: <1202754466.13537.123.camel@linuxchandra> (raw)
In-Reply-To: <20080209124511.GB28967@parisc-linux.org>
On Sat, 2008-02-09 at 05:45 -0700, Matthew Wilcox wrote:
> On Mon, Feb 04, 2008 at 01:19:30PM -0800, Chandra Seetharaman wrote:
> > The device does send these error messages currently, but it takes some
> > time to get the check condition back, which adds up the time to boot
> > especially when the # of LUNS is huge.
> >
> > For example, in my test configuration, I had 40 luns, and the time
> > difference (with this patch and without it) to boot is 171 seconds and
> > 1426 seconds.
>
> Was that with sync or async SCSI bus scanning?
I didn't change anything, IOW, i did default scanning, which I would
guess sync ?!
>
--
----------------------------------------------------------------------
Chandra Seetharaman | Be careful what you choose....
- sekharan@us.ibm.com | .......you may get it.
----------------------------------------------------------------------
next prev parent reply other threads:[~2008-02-11 18:27 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-24 0:30 [PATCH 0/9] scsi_dh: Move dm device handler to SCSI layer Chandra Seetharaman
2008-01-24 0:30 ` [PATCH 1/9] scsi_dh: add REQ_LB_OP_TRANSITION and errors Chandra Seetharaman
2008-01-24 0:30 ` [PATCH 2/9] scsi_dh: change sd_prep_fn to call common code Chandra Seetharaman
2008-01-24 0:30 ` [PATCH 3/9] scsi_dh: scsi handling of REQ_LB_OP_TRANSITION Chandra Seetharaman
2008-02-01 20:00 ` Mike Christie
2008-02-04 18:59 ` Chandra Seetharaman
2008-02-04 19:02 ` James Bottomley
2008-02-06 19:00 ` Mike Anderson
2008-02-06 20:52 ` James Bottomley
2008-01-24 0:31 ` [PATCH 4/9] scsi_dh: add skeleton for SCSI Device Handlers Chandra Seetharaman
2008-02-01 19:53 ` Mike Christie
2008-02-01 20:27 ` Mike Anderson
2008-02-04 18:54 ` Chandra Seetharaman
2008-01-24 0:31 ` [PATCH 5/9] scsi_dh: add EMC Clariion device handler Chandra Seetharaman
2008-01-24 0:31 ` [PATCH 6/9] scsi_dh: add hp sw " Chandra Seetharaman
2008-01-24 0:32 ` [PATCH 7/9] scsi_dh: Add support for SDEV_PASSIVE Chandra Seetharaman
2008-02-04 18:58 ` James Bottomley
2008-02-04 20:15 ` Chandra Seetharaman
2008-02-04 20:28 ` James Bottomley
2008-02-04 21:19 ` Chandra Seetharaman
2008-02-09 12:45 ` Matthew Wilcox
2008-02-11 18:27 ` Chandra Seetharaman [this message]
2008-02-11 19:18 ` Matthew Wilcox
2008-02-28 1:03 ` Chandra Seetharaman
2008-02-05 20:04 ` Mike Christie
2008-02-05 21:56 ` Mike Anderson
2008-02-06 0:46 ` Chandra Seetharaman
2008-02-07 10:08 ` no INQUIRY from userspace please (was Re: [PATCH 7/9] scsi_dh: Add support for SDEV_PASSIVE) Stefan Richter
2008-02-07 15:01 ` James Bottomley
2008-02-07 17:05 ` no INQUIRY from userspace please Stefan Richter
2008-02-07 17:13 ` Stefan Richter
2008-02-19 20:53 ` Douglas Gilbert
2008-03-04 9:06 ` Hannes Reinecke
2008-02-07 20:42 ` no INQUIRY from userspace please (was Re: [PATCH 7/9] scsi_dh: Add support for SDEV_PASSIVE) Luben Tuikov
2008-02-04 20:26 ` [PATCH 7/9] scsi_dh: Add support for SDEV_PASSIVE Mike Anderson
2008-01-24 0:32 ` [PATCH 8/9] scsi_dh: add lsi rdac device handler Chandra Seetharaman
2008-01-24 0:32 ` [PATCH 9/9] scsi_dh: add scsi device handler to dm Chandra Seetharaman
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