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Date:      Thu, 02 Jan 2003 05:48:08 -0500
From:      Gary Stanley <gary@outloud.org>
To:        "Sean Hamilton" <sh@bel.bc.ca>, <hackers@FreeBSD.ORG>
Subject:   Re: ATA RAID performance
Message-ID:  <5.2.0.9.2.20030102054201.027840f0@208.141.46.254>
In-Reply-To: <000501c2b241$21927560$31dfe8d8@slugabed.org>

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>I have tried using both atacontrol and ccdconfig to create stripes and
>mirrors of various sizes, and have found that in all cases, read performance
>*decreased*.

Have you formatted your filesystem to the correct fragment/blocksizes? This 
usually helps on raid controllers in conjunction with the correct stripe size.

"man tuning" for more information.









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