From: David Greaves <david@dgreaves.com>
To: "J.A. Magallon" <jamagallon@able.es>
Cc: linux-kernel@vger.kernel.org
Subject: Re: md RAID over SATA performance
Date: Fri, 03 Sep 2004 09:09:37 +0100 [thread overview]
Message-ID: <413826C1.1010203@dgreaves.com> (raw)
In-Reply-To: <1094172444l.17931l.1l@werewolf.able.es>
J.A. Magallon wrote:
>
> On 2004.09.03, J.A. Magallon wrote:
>
>> Hi all...
>>
>> I am buildin an array with a linux box, and I run 2.6.8.1 (not stock,
>> but
>> the mandrake cooker version).
>>
>> Problem is that i get really poor performance.
>
Try:
blockdev --getra /dev/sda1
blockdev --getra /dev/md0
and if needed:
blockdev --setra 4096 /dev/sda1
blockdev --setra 4096 /dev/md0
Also if you use lvm:
blockdev --setra 4096 /dev/video_vg/video_lv
as appropriate.
Tune as needed :)
David
next prev parent reply other threads:[~2004-09-03 8:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-03 0:05 md RAID over SATA performance J.A. Magallon
2004-09-03 0:47 ` J.A. Magallon
2004-09-03 8:09 ` David Greaves [this message]
2004-09-03 16:15 ` Mark Lord
2004-09-03 11:13 ` Alan Cox
2004-09-03 13:24 ` Brad Campbell
2004-09-03 16:33 ` Mark Lord
2004-09-03 20:27 ` Tomasz Torcz
2004-09-04 13:38 ` Mark Lord
2004-09-03 21:58 ` J.A. Magallon
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