Date: Tue, 21 Dec 1999 19:06:04 -0800 From: Kent Stewart <kstewart@3-cities.com> To: Mikhail Evstiounin <evstiounin@adelphia.net> Cc: Arcady Genkin <a.genkin@utoronto.ca>, freebsd-questions@freebsd.org Subject: Re: One drive much slower than another Message-ID: <3860401C.2282C08C@3-cities.com> References: <003f01bf4c27$bfad3ba0$d3353018@evstiouninadelphia.net.pit.adelphia.net>
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Mikhail Evstiounin wrote: > > > > >Make sure you have the advanced features turned on for the WD drive. > >You may have a slow setting in your bios. > > besides, if your motherboard is old - it could be possible that one IDE is > Ultra one, while another is regular - I have board like this. I have a Caviar 2.5 and these older Caviar's only supports PCI Mode 4, which is 16MB/s. I didn't get the high transfer rates until I went to a UDMA 33 HD. Then, the WD HD's were fast. I have an ASUS P2B-B and get a real mix on transfer rates between the old non_UDMA drives and the new ones. FreeBSD is installed on a 13.1 GB WD drive and it writes at 12+MB/s and reads at 14+MB/s. I figured that if the slow Quantum gave a high rate, then he has a modern mb and it should support UDMA on both channels. The WD wouldn't understand UDMA but should benchmark on the order of 7-8MB/s. Kent > > > > >Kent > > -- Kent Stewart Richland, WA mailto:kstewart@3-cities.com http://www.3-cities.com/~kstewart/index.html FreeBSD News http://daily.daemonnews.org/ SETI(Search for Extraterrestrial Intelligence) @ HOME http://setiathome.ssl.berkeley.edu/ Hunting Archibald Stewart, b 1802 in Ballymena, Antrim Co., NIR http://www.3-cities.com/~kstewart/genealogy/archibald_stewart.html To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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