From: Bill Davidsen <davidsen@tmr.com>
To: Richard Scobie <richard@sauce.co.nz>
Cc: Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Re: Speed variation depending on disk position
Date: Tue, 08 May 2007 09:34:12 -0400 [thread overview]
Message-ID: <46407C54.7030306@tmr.com> (raw)
In-Reply-To: <463E2EF0.6010408@sauce.co.nz>
Richard Scobie wrote:
> Peter Rabbitson wrote:
>
>> design of modern drives? I have an array of 4 Maxtor sata drives, and
>> raw read performance at the end of the disk is 38mb/s compared to 62mb/s
>> at the beginning.
>
> At least one supplier of terabyte arrays mitigates this effect and
> improves seek times, by using 750GB drives and only utilising the
> first 500GB.
You can do some tuning using partitions this way, assuming you have data
which are small, and/or accessed infrequently, and some other data where
transfer rate is important. Same idea, but you get to use all of the
drive capacity.
--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
next prev parent reply other threads:[~2007-05-08 13:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-05 16:33 Linux SW RAID: HW Raid Controller/JBOD vs. Multiple PCI-e Cards? Justin Piszcz
2007-05-05 16:44 ` Bill Davidsen
2007-05-05 17:37 ` Patrik Jonsson
2007-05-05 20:54 ` Chris Wedgwood
2007-05-05 21:37 ` Speed variation depending on disk position (was: Linux SW RAID: HW Raid Controller/JBOD vs. Multiple PCI-e Cards?) Peter Rabbitson
2007-05-06 5:02 ` Speed variation depending on disk position Benjamin Davenport
2007-05-06 15:29 ` Speed variation depending on disk position (was: Linux SW RAID: HW Raid Controller/JBOD vs. Multiple PCI-e Cards?) Mark Hahn
2007-05-06 19:39 ` Speed variation depending on disk position Richard Scobie
2007-05-08 13:34 ` Bill Davidsen [this message]
2007-05-05 21:18 ` Linux SW RAID: HW Raid Controller/JBOD vs. Multiple PCI-e Cards? Emmanuel Florac
2007-05-05 21:32 ` Justin Piszcz
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