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From: Neil Brown <neilb@suse.de>
To: "Keld Jørn Simonsen" <keld@dkuug.dk>
Cc: Wolfgang Denk <wd@denx.de>, Bill Davidsen <davidsen@tmr.com>,
	linux-raid@vger.kernel.org
Subject: Re: recommendations for stripe/chunk size
Date: Thu, 7 Feb 2008 16:51:22 +1100	[thread overview]
Message-ID: <18346.40026.149635.800694@notabene.brown> (raw)
In-Reply-To: message from Keld Jorn Simonsen on Thursday February 7

On Thursday February 7, keld@dkuug.dk wrote:
> 
> Anyway, why does a SATA-II drive not deliver something like 300 MB/s?


Are you serious?

I high end 15000RPM enterprise grade drive such as the Seagate
Cheetah® 15K.6 Hard Drives only deliver 164MB/sec.

The SATA Bus might be able to deliver 300MB/s, but an individual drive
would be around 80MB/s unless it is really expensive.

(or was that yesterday?  I'm having trouble keeping up with the pace
 of improvement :-)

NeilBrown
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  parent reply	other threads:[~2008-02-07  5:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-05 18:24 recommendations for stripe/chunk size Keld Jørn Simonsen
2008-02-05 19:19 ` Justin Piszcz
2008-02-06 19:22 ` Bill Davidsen
2008-02-06 20:25   ` Wolfgang Denk
2008-02-06 22:37     ` Bill Davidsen
2008-02-07  0:31     ` Keld Jørn Simonsen
2008-02-07  5:40       ` Iustin Pop
2008-02-07  9:58         ` Keld Jørn Simonsen
2008-02-07  5:51       ` Neil Brown [this message]
2008-02-07  5:46     ` Neil Brown
2008-02-07  8:49       ` Wolfgang Denk
2008-02-07  5:31   ` Neil Brown

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