Date: Mon, 22 Nov 2004 14:26:14 -0500 From: David Gilbert <dgilbert@dclg.ca> To: Charles Sprickman <spork@fasttrackmonkey.com> Cc: David Gilbert <dgilbert@dclg.ca> Subject: Re: List of fake vs. real SATA drives. Message-ID: <16802.15702.58144.76512@canoe.dclg.ca> In-Reply-To: <Pine.OSX.4.61.0411221417120.787@oof.local> References: <16798.12075.465147.307112@canoe.dclg.ca> <864qjixdpi.wl%sf@FreeBSD.org> <41A1FB7D.9000308@jonny.eng.br> <Pine.OSX.4.61.0411221417120.787@oof.local>
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>>>>> "Charles" == Charles Sprickman <spork@fasttrackmonkey.com> writes: Charles> On Mon, 22 Nov 2004, [ISO-8859-1] João Carlos Mendes Luís Charles> wrote: >> What is the practical diference? Performance? Charles> I don't know how much of it to believe, since it is marketing Charles> material, but the Seagate white paper on their site claims Charles> that all the command-queueing stuff brings the performance Charles> very close to that of scsi. Charles> This last weekend I put together a box with a 3Ware SATA RAID Charles> controller and two of the Seagate drives. The controller is Charles> probably a bit of a bottleneck, but that sucker was still Charles> incredibly fast for the price (about $300 for the controller, Charles> $100 for for each of the two Seagate 160GB drives). At $2 Charles> per mirrored gigabyte, I'm not complaining. Does the 3ware support command queueing ... or is it purely a driver issue? Does FreeBSD support queueing? Does FreeBSD support queueing on all supported SATA controllers ... or just some? Dave. -- ============================================================================ |David Gilbert, Independent Contractor. | Two things can only be | |Mail: dave@daveg.ca | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================
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