From: Steve Cousins <steve.cousins@maine.edu>
To: Andrew Clayton <andrew@digital-domain.net>
Cc: Justin Piszcz <jpiszcz@lucidpixels.com>,
David Rees <drees76@gmail.com>, Andrew Clayton <andrew@pccl.info>,
linux-raid@vger.kernel.org
Subject: Re: RAID 5 performance issue.
Date: Thu, 04 Oct 2007 12:46:05 -0400 [thread overview]
Message-ID: <470518CD.10405@maine.edu> (raw)
In-Reply-To: <20071004160316.5332a370@zeus.pccl.info>
Andrew Clayton wrote:
> On Thu, 4 Oct 2007 10:39:09 -0400 (EDT), Justin Piszcz wrote:
>
>
>
>> What type (make/model) of the drives?
>>
>
> The drives are 250GB Hitachi Deskstar 7K250 series ATA-6 UDMA/100
>
A couple of things:
1. I thought you had SATA drives
2. ATA-6 would be UDMA/133
The SATA-1 versions of the 7K250's did not have NCQ. The SATA-2 versions
do have NCQ. If you do have SATA drives, are they SATA-1 or SATA-2?
Steve
next prev parent reply other threads:[~2007-10-04 16:46 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-03 9:53 RAID 5 performance issue Andrew Clayton
2007-10-03 16:43 ` Justin Piszcz
2007-10-03 16:48 ` Justin Piszcz
2007-10-03 20:10 ` Andrew Clayton
2007-10-03 20:16 ` Justin Piszcz
2007-10-06 12:30 ` Justin Piszcz
2007-10-06 16:05 ` Justin Piszcz
2007-10-03 20:19 ` Andrew Clayton
2007-10-03 20:35 ` Justin Piszcz
2007-10-03 20:46 ` Andrew Clayton
2007-10-03 20:36 ` David Rees
2007-10-03 20:48 ` Andrew Clayton
2007-10-04 14:08 ` Andrew Clayton
2007-10-04 14:09 ` Justin Piszcz
2007-10-04 14:10 ` Justin Piszcz
2007-10-04 14:44 ` Andrew Clayton
2007-10-04 16:20 ` Justin Piszcz
2007-10-04 18:26 ` Andrew Clayton
2007-10-05 10:25 ` Justin Piszcz
2007-10-05 10:57 ` Andrew Clayton
2007-10-05 11:08 ` Justin Piszcz
2007-10-05 12:53 ` Andrew Clayton
2007-10-05 13:18 ` Justin Piszcz
2007-10-05 13:30 ` Andrew Clayton
2007-10-05 14:07 ` Justin Piszcz
2007-10-05 14:32 ` Andrew Clayton
2007-10-05 16:10 ` Andrew Clayton
2007-10-05 16:16 ` Justin Piszcz
2007-10-05 19:33 ` Andrew Clayton
2007-10-05 18:58 ` Richard Scobie
2007-10-05 19:02 ` Justin Piszcz
2007-10-05 19:02 ` John Stoffel
2007-10-05 19:42 ` Andrew Clayton
2007-10-05 20:56 ` John Stoffel
2007-10-07 17:22 ` Andrew Clayton
2007-10-11 17:06 ` Bill Davidsen
2007-10-11 18:07 ` Andrew Clayton
2007-10-11 23:43 ` Justin Piszcz
2007-10-04 14:36 ` Andrew Clayton
2007-10-04 14:39 ` Justin Piszcz
2007-10-04 15:03 ` Andrew Clayton
2007-10-04 16:19 ` Justin Piszcz
2007-10-04 19:01 ` Andrew Clayton
2007-10-04 16:46 ` Steve Cousins [this message]
2007-10-04 17:06 ` Steve Cousins
2007-10-04 19:06 ` Andrew Clayton
2007-10-05 10:20 ` Justin Piszcz
2007-10-04 14:39 ` Justin Piszcz
2007-10-03 17:53 ` Goswin von Brederlow
2007-10-03 20:20 ` Andrew Clayton
2007-10-03 20:48 ` Richard Scobie
2007-10-05 20:25 ` Brendan Conoboy
2007-10-06 0:38 ` Dean S. Messing
2007-10-06 8:18 ` Justin Piszcz
2007-10-08 1:40 ` Dean S. Messing
2007-10-08 8:44 ` Justin Piszcz
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