Date: Tue, 18 Sep 2007 21:30:40 +0100 From: Ashley Moran <work@ashleymoran.me.uk> To: =?ISO-8859-1?Q?Jo=E3o_Carlos_Mendes_Lu=EDs?= <jonny@jonny.eng.br> Cc: hardware@freebsd.org Subject: Re: SATA mirrror performance Message-ID: <CC565B45-9D16-4FBE-BB54-6AC5A09AC973@ashleymoran.me.uk> In-Reply-To: <46EDDDD0.2070409@jonny.eng.br> References: <46EDDDD0.2070409@jonny.eng.br>
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On Sep 17, 2007, at 2:52 am, Jo=E3o Carlos Mendes Lu=EDs wrote: > After using gmirror, now I have the RAID in its full performance, > getting over 60Mbytes per second at raw reads, very near the 70MBps =20= > from > the specs. Could only be better if we already had NCQ working. > > Now the question: Is this expected? Is ataraid somehow deprecated? I had no end of trouble with ataraid. At first I was under the =20 impression it was the best solution, seeing as it has some support =20 from the motherboard. But after posting to a list (possibly -=20 hardware) a long time ago, all the answers I got were to use =20 gmirror. I don't know that ataraid is deprecated, but I can't think =20 of any reason to use it. Fortunately (as you have found), turning an =20= ataraid mirror into a gmirror is easy. I would just use gmirror and =20 not worry about it. Ashley=
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