From: Patrick Mansfield <patmans@us.ibm.com>
To: Chip Coldwell <coldwell@frank.harvard.edu>
Cc: Gerhard Schneider <gs@ilsb.tuwien.ac.at>, linux-scsi@vger.kernel.org
Subject: Re: SCSI tape access on 2.6 kernels?
Date: Tue, 24 Jan 2006 12:23:06 -0800 [thread overview]
Message-ID: <20060124202306.GA8422@us.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0601241251460.23364@localhost.localdomain>
On Tue, Jan 24, 2006 at 12:52:36PM -0500, Chip Coldwell wrote:
> Put
>
> options st try_direct_io=0
>
> in /etc/modprobe.conf. Direct I/O defeats read-ahead, and
> significantly (factor of >5) degrates read performance. I don't know
> about writes.
For tape???
-- Patrick Mansfield
next prev parent reply other threads:[~2006-01-24 20:23 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-24 10:42 SCSI tape access on 2.6 kernels? Gerhard Schneider
2006-01-24 12:56 ` Gerhard Schneider
2006-01-24 17:52 ` Chip Coldwell
2006-01-24 20:23 ` Patrick Mansfield [this message]
2006-01-24 20:36 ` Chip Coldwell
2006-01-25 21:10 ` Kai Makisara
2006-01-26 16:11 ` Chip Coldwell
2006-01-26 16:39 ` Chip Coldwell
2006-01-26 17:39 ` Dead Adaptec AHA-2940U2/U2W while ripping a CD Mathieu Chouquet-Stringer
2006-01-26 21:54 ` SCSI tape access on 2.6 kernels? Kai Makisara
2006-01-27 15:40 ` Chip Coldwell
2006-01-27 17:56 ` Kai Makisara
2006-01-24 20:56 ` Kai Makisara
2006-01-24 20:58 ` Chip Coldwell
2006-01-24 21:01 ` Gerhard Schneider
2006-01-25 16:08 ` Chip Coldwell
2006-01-25 16:25 ` Denny Page
2006-01-25 19:03 ` Gerhard Schneider
2006-01-24 19:43 ` Denny Page
2006-01-24 20:50 ` Kai Makisara
2006-01-24 21:12 ` Gerhard Schneider
2006-01-25 21:26 ` Kai Makisara
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