Date: Fri, 28 Oct 2005 20:59:38 -0600 From: Scott Long <scottl@samsco.org> To: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@freebsd.org> Cc: Peter Jeremy <PeterJeremy@optushome.com.au>, Mikhail Teterin <mi+mx@aldan.algebra.com>, hackers@freebsd.org, hardware@freebsd.org Subject: Re: Very slow writing to SATA disk Message-ID: <4362E59A.7040909@samsco.org> In-Reply-To: <2835B7B9-03AA-4EB2-996B-8CEC485071C6@FreeBSD.ORG> References: <200510280518.j9S5I3oQ025430@blue.virtual-estates.net> <20051028204803.GW39882@cirb503493.alcatel.com.au> <BC9D6C18-A7EC-4193-9021-7236CE12501F@FreeBSD.ORG> <200510281745.43138.mi%2Bmx@aldan.algebra.com> <2835B7B9-03AA-4EB2-996B-8CEC485071C6@FreeBSD.ORG>
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Søren Schmidt wrote: > > On 28/10/2005, at 23:45, Mikhail Teterin wrote: > >>> Indeed, 55C is way to high for 24/7 usage, and it might be that the >>> drive is choking on it and barely is able to compensate. >> >> >> The reads are pretty quick... I'd like to be able to spin it down, but >> ataidle is broken :-( > > > Ask the maintainer to get it fixed, but be warned experience says it > might hose your data... > >>> What does SMART say ? any unusual like high correction rates or >>> anything ? >> >> > > (SMART data deleted) > > Well except the excessive temperature nothing out of the ordinary... > > Now, you say read speed is OK, but write speed isnt, is that on the raw > disk device or though the filesystem ? > > Søren Schmidt > sos@FreeBSD.org > For what it's worth, I'm seeing slow write speeds on some tests with other (non-ata) controllers. Haven't had time to isolate it just yet. Scott
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