From: Marc MERLIN <marc@merlins.org>
To: linux-ide@vger.kernel.org
Subject: Load cycle and spin down software fixup for WD20EADS and other drives
Date: Mon, 20 Jun 2011 08:35:29 -0700 [thread overview]
Message-ID: <20110620153529.GG21438@merlins.org> (raw)
For the list archives (or the wiki if someone can update it), I should post
a fix I wrote years ago for two problems with those WD green drives (a few
others are affected too).
wdidle3 is required to tweak some firmware bits that stop the heads from
parking every 8 seconds on linux.
And then the drives will not properly spin down on a timeout like most
drives will hdparm -S 12
As sad as it is, I wrote a small daemon that checks disk access with iostat
and manually spins the drives down if needed:
http://marc.merlins.org/perso/linux/post_2010-08-03_Spinning-Down-WD20EADS-Drives-and-Fixing-Load-Cycle.html
http://marc.merlins.org/linux/scripts/swdisksusp
Hope this helps someone
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
reply other threads:[~2011-06-20 15:35 UTC|newest]
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