From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andargor The Wise Subject: Re: SATA performace Date: Tue, 3 Jan 2006 20:04:10 -0800 (PST) Message-ID: <20060104040410.71687.qmail@web54607.mail.yahoo.com> References: <1136314242.10745.4.camel@seki.nac.uci.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1136314242.10745.4.camel@seki.nac.uci.edu> Sender: linux-raid-owner@vger.kernel.org Cc: Paul Aviles , linux-raid@vger.kernel.org, strombrg@dcs.nac.uci.edu List-Id: linux-raid.ids Hmm. I just installed EVMS 2.5.4 two weeks ago. Unless I did something wrong? Andargor --- Dan Stromberg wrote: >=20 > Supposedly current versions of EVMS and LVM sit > overtop of the same > "device mapper" kernel component... Given this, I > have to wonder if the > situation hasn't changed since last evaluated. >=20 > On Tue, 2006-01-03 at 00:36 -0800, Andargor The Wise > wrote: > > --- Paul Aviles wrote: > >=20 > > > Are SATA drives similar in performance than IDE > > > drives? I have tested=20 > > > Barracudas 7200.0 (500Gb) and WD too on the same > > > type of servers (more than=20 > > > 1 unit) and what I am getting is painfully slow > in > > > terms of read/writes.=20 > > > Anyone out there with similar experience or this > is > > > just my isolated=20 > > > results? > > >=20 > > > Thanks > > >=20 > > > Paul Aviles=20 > > >=20 > >=20 > > Don't know about IDE, but I did some SATA tests on > > RAID-5, if it can give you an indication: > >=20 > > http://www.andargor.com/raid5.html > >=20 > > BTW, EVMS will cut your performance about 50% (the > > tests were run with straight MD, no EVMS). I don't > > know about LVM, but that might add some overhead > as > > well... > >=20 > > Andargor > >=20 > >=20 > >=20 > > =09 > > =09 > > __________________________________=20 > > Yahoo! for Good - Make a difference this year.=20 > > http://brand.yahoo.com/cybergivingweek2005/ > > - > > To unsubscribe from this list: send the line > "unsubscribe linux-raid" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at=20 > http://vger.kernel.org/majordomo-info.html > >=20 >=20 >=20 =09 __________________________________________=20 Yahoo! DSL =96 Something to write home about.=20 Just $16.99/mo. or less.=20 dsl.yahoo.com=20 - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html