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Date: Fri, 28 Oct 2005 20:59:38 -0600
From: Scott Long <scottl@samsco.org>
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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
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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