From: Mark Knecht <markknecht@gmail.com>
To: Peter Kieser <peter@kieser.ca>
Cc: Andrew Dunn <andrew.g.dunn@gmail.com>,
Mdadm <linux-raid@vger.kernel.org>
Subject: Re: Use of WD20EARS with MDADM
Date: Fri, 26 Mar 2010 13:59:27 -0700 [thread overview]
Message-ID: <5bdc1c8b1003261359i2f6f1bdai3261aec30bb663bf@mail.gmail.com> (raw)
In-Reply-To: <4BAD18A5.1080905@kieser.ca>
On Fri, Mar 26, 2010 at 1:27 PM, Peter Kieser <peter@kieser.ca> wrote:
<SNIP>
> Hello,
>
> The 4096-byte sector drives work fine with mdadm. The main problem you are
> going to run into with the WDC Green drives is their 8 second "idle"
> setting. After 8 seconds, by default, the drive parks its heads. This can
> lead to an amazingly high Load Cycle Count (LLC) after just a month of
> operation due to the fact that most disk access happens around that time
> causing the drive to park and unpark in repeated cycles.
>
> To fix this, find a utility called wdidle3 (I have it, if you are unable to
> locate it) and set the idle timeout on the drives to 300 seconds. These
> drives do not support TLER, there is no ability to set it via firmware
> anymore - WDC removed this ability sometime last year.
>
> -Peter
This seems to be a windows program? I don't see a Linux version in
Gentoo portage.
I could run Windows once to set it if the settings are then
maintained, or do you have a Linux solution?
- Mark
next prev parent reply other threads:[~2010-03-26 20:59 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-25 16:20 Use of WD20EARS with MDADM Andrew Dunn
2010-03-25 17:01 ` Asdo
2010-03-25 17:58 ` Mark Knecht
2010-03-25 20:23 ` John Robinson
2010-03-26 10:45 ` Asdo
2010-03-25 17:10 ` David Lethe
2010-03-25 17:45 ` Asdo
2010-03-28 16:19 ` Stefan *St0fF* Huebner
2010-03-29 16:59 ` WD20EARS data Stefan /*St0fF*/ Hübner
2010-03-29 17:13 ` Stefan /*St0fF*/ Hübner
2010-04-14 19:53 ` Use of WD20EARS with MDADM Bill Davidsen
2010-04-19 14:17 ` Phillip Susi
2010-04-21 13:20 ` Bill Davidsen
2010-04-21 13:45 ` Tim Small
2010-04-21 14:32 ` Mikael Abrahamsson
2010-04-21 21:58 ` Berkey B Walker
2010-05-02 22:33 ` Bill Davidsen
2010-05-03 0:08 ` Berkey B Walker
2010-04-21 15:14 ` Phillip Susi
2010-04-21 16:42 ` Bill Davidsen
2010-04-21 17:36 ` Mark Knecht
2010-04-21 18:40 ` Tim Small
2010-04-21 19:01 ` Mark Knecht
2010-04-21 19:31 ` Clinton Lee Taylor
2010-04-22 0:51 ` Steven Haigh
2010-04-21 19:33 ` Phillip Susi
2010-04-21 20:36 ` Mark Knecht
2010-05-12 13:06 ` Tim Small
2010-04-22 11:40 ` wdidle3 Tim Small
2010-04-22 16:13 ` Use of WD20EARS with MDADM Khelben Blackstaff
2010-04-22 18:16 ` Simon Matthews
2010-04-22 19:44 ` Phillip Susi
2010-04-22 23:23 ` Mark Knecht
2010-04-23 0:03 ` Richard Scobie
2010-04-23 1:29 ` Mark Knecht
2010-04-23 3:49 ` Phillip Susi
2010-04-23 3:44 ` Phillip Susi
2010-04-21 15:52 ` Simon Matthews
2010-04-21 19:24 ` Richard Scobie
2010-03-26 20:27 ` Peter Kieser
2010-03-26 20:59 ` Mark Knecht [this message]
2010-03-26 21:01 ` Peter Kieser
2010-03-26 21:06 ` Mark Knecht
2010-03-26 21:16 ` Mark Knecht
2010-03-26 21:19 ` Richard Scobie
2010-03-26 22:38 ` Mark Knecht
2010-03-26 22:47 ` Peter Kieser
2010-03-26 22:50 ` Matt Garman
2010-03-26 22:51 ` Peter Kieser
2010-03-26 23:01 ` David Rees
2010-03-27 23:31 ` Mark Knecht
2010-03-26 21:45 ` Matt Garman
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