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Date:      Wed, 27 Jan 2010 23:55:49 +0000
From:      Adrian Wontroba <aw1@stade.co.uk>
To:        FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>
Subject:   Re: immense delayed write to file system (ZFS and UFS2), performance issues
Message-ID:  <20100127235549.GA44968@swelter.hanley.stade.co.uk>
In-Reply-To: <4B6022C6.1090608@andric.com>
References:  <cf9b1ee01001261515n72f32265tf8dd0da5c8a3ec3c@mail.gmail.com> <4B6022C6.1090608@andric.com>

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On Wed, Jan 27, 2010 at 12:25:58PM +0100, Dimitry Andric wrote:
> On 2010-01-27 00:15, Dan Naumov wrote:
> Sorry to bump into this thread so late, but for some of my servers I
> have been using a patch for atacontrol, to turn the APM features of the
> disk(s) off, for a long time.  This is mostly noticable with 2.5"
> notebook disks, which "click" like crazy all the time. :)

Turning off APM seems to be the LINUX world's solution to this and other
similar problems. I got the impression that Windows also does this.

-- 
Adrian Wontroba
Save energy: be apathetic.



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