From: Tejun Heo <tj@kernel.org>
To: Mark Lord <kernel@teksavvy.com>
Cc: Al Bogner <suse-linux@ml082.pinguin.uni.cc>, linux-ide@vger.kernel.org
Subject: Re: WDC WD15EARS-00Z5B1: harddrive which does crazy unloading
Date: Thu, 11 Mar 2010 14:38:16 +0900 [thread overview]
Message-ID: <4B9881C8.10506@kernel.org> (raw)
In-Reply-To: <4B965DE7.7000109@teksavvy.com>
Hello,
On 03/09/2010 11:40 PM, Mark Lord wrote:
> The default on these drives is to unload heads
> after a mere eight (8) seconds of inactivity.
>
> Ugh.
Heh, yeah, that's pretty low. I hope they eventually learn to adjust
that dynamically considering running avg of intervals between writes.
It shouldn't be too hard.
> The wdidle3-1.03 DOS tool can fix that. Google it.
>
> I have disassembled that tool here, and found a few
> vendor-unique commands inside it. But thus far have
> not managed to get them working natively in Linux.
>
> I really need a SATA tracer/analyser..
Hmmm... so they don't respond to ATA APM command?
Thanks.
--
tejun
next prev parent reply other threads:[~2010-03-11 5:38 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-08 18:33 WDC WD15EARS-00Z5B1: harddrive which does crazy unloading Al Bogner
2010-03-09 8:05 ` Tejun Heo
2010-03-09 8:13 ` Mikael Abrahamsson
2010-03-09 10:34 ` Al Bogner
2010-03-09 14:40 ` Mark Lord
2010-03-11 5:38 ` Tejun Heo [this message]
2010-03-11 5:53 ` Tejun Heo
2010-03-11 19:10 ` Justin Maggard
2010-03-14 15:57 ` Mark Lord
2010-03-15 0:02 ` Tejun Heo
2010-03-18 16:15 ` Al Bogner
2010-03-18 18:36 ` Justin Maggard
2010-03-19 2:26 ` Tejun Heo
2010-03-19 2:27 ` Tejun Heo
2010-03-23 1:34 ` Mark Lord
[not found] ` <4BA82A2F.7010607@hardwarefreak.com>
2010-03-23 2:44 ` Stan Hoeppner
2010-04-29 11:00 ` Bjørn Mork
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