Date: Mon, 22 Nov 2004 15:21:36 -0600 From: Stephen Montgomery-Smith <stephen@math.missouri.edu> To: tw@wsf.at Cc: freebsd-hackers@freebsd.org Subject: Re: List of fake vs. real SATA drives. Message-ID: <41A25860.8030901@math.missouri.edu> In-Reply-To: <20041122215408.gjzs36hxmsoo00@.mailhost.wsf.at> References: <20041122215408.gjzs36hxmsoo00@.mailhost.wsf.at>
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Thomas Wolf wrote: > Stephen Montgomery-Smith <stephen@math.missouri.edu> schrieb: > > >>FUJISHIMA Satsuki wrote: >> >>>Currently native SATA drives are still not so popular. There are: >> >>>Seagate Barracuda ATA V, 7200.7, 7200.8 >> >>I have one of these, and I am really impressed by its performance. I >>added one to my computer, which came with a Maxtor 6Y080L0. My main >>disk intensive operation is creating the CTM deltas (as in CTM which is >>an alternative to CVSUP for people behind unfriendly firewalls). The >>performance difference was somewhat collosal, as in something like 3 >>times faster. To be honest, I am still at a loss to explain why the >>Seagate did so very much better - maybe it is the 8M cache as compared >>to the 2M cache. The Seagate 7200.7 had similar performance to a >>Seagate 160MHz SCSI drive that I have on another computer. > > > Ah, please tell me more about it, is this a ST3120827AS? > (I would need the exact PartNo.) What controller dou you have > and finally, on which version of FreeBSD? > ST380013AS with Intel ICH5 SATA150 controller and FreeBSD 4.10-Stable. The kernel reports that it is running at UDMA33, but the actual performance seems much better than that.
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