Date: Thu, 31 Jul 2003 12:53:17 -0400 (EDT) From: Kenneth Culver <culverk@yumyumyum.org> To: Soeren Schmidt <sos@spider.deepcore.dk> Cc: Buckie <freebsd1@centrum.cz> Subject: Re: Ultra ATA card doesn't seem to provide Ultra speeds. Message-ID: <20030731125301.N85113@alpha.yumyumyum.org> In-Reply-To: <200307311545.h6VFjOTp098979@spider.deepcore.dk> References: <200307311545.h6VFjOTp098979@spider.deepcore.dk>
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> > Guess I just didn't look hard enough or in the right place. I only spent a > > minute or 2 on it, but yeah ATA drives don't tell you that sort of thing, > > they say stuff like "ATA133 for a max transfer rate of 133 MB/sec *" then > > at the bottom the * says something like "133 MB/sec burst rate from drive > > to controller" or something similar. But I did try fairly hard to find > > specs on our Seagate drives and couldn't find a hard number that told what > > the maximum read and write speeds were. > > Thats maybe true for some drives, but generally they state this info > in their docs, for the Diamond 9+ it took me < 10 secs to find the > below transfer speeds, I did have the PDF handy though :) > > Disk to Read Once a 236Mb/sec 236Mb/sec 236Mb/sec 236Mb/sec > Revolution mminimum minimum minimum minimum > > 433Mb/sec 433Mb/sec 433Mb/sec 433Mb/sec > maximum maximum maximum maximum > > Disk to Read 257Mb/sec 257Mb/sec 257Mb/sec 257Mb/sec > Instantaneously minimum minimum minimum minimum > > 472Mb/sec 472Mb/sec 472Mb/sec 472Mb/sec > maximum maximum maximum maximum > OK you win :-P I just don't know where to look I guess. Ken
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