From: Roman Mamedov <rm@romanrm.ru>
To: Andris Berzins <pkix@inbox.lv>
Cc: linux-raid@vger.kernel.org
Subject: Re: Western Digital Green 3TB SATA3 experiences
Date: Wed, 20 Mar 2013 15:29:39 +0600 [thread overview]
Message-ID: <20130320152939.480374e9@natsu> (raw)
In-Reply-To: <1363771292.51497f9ca4fb5@mail.inbox.lv>
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On Wed, 20 Mar 2013 11:21:32 +0200
"Andris Berzins" <pkix@inbox.lv> wrote:
> >> Is this because of WD "green" series?
> >
> > No.
>
> "Green" series are special because they spin down after 7 seconds and they do not
> return in timely manner when read error occurs.
They do not spin down after 7 seconds, they unload their heads. In any case
this behavior is not expected to ever cause Current_Pending_Sectors rising
(which are plain and simple unreadable sectors no matter how hard you try or
how long you wait).
You can disable the 7-second unload time behavior by using either "hdparm -J"
or using "idle3-tools" http://idle3-tools.sourceforge.net/ (also available in
Debian). I would indeed recommend doing that to reduce wear and tear on the
head mechanism from constant loads/unloads; but I somewhat doubt this will
make a difference in relation to your issue.
--
With respect,
Roman
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next prev parent reply other threads:[~2013-03-20 9:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-20 8:09 Western Digital Green 3TB SATA3 experiences Andris Berzins
2013-03-20 8:28 ` Mikael Abrahamsson
2013-03-20 8:48 ` Roman Mamedov
2013-03-20 9:21 ` Andris Berzins
2013-03-20 9:29 ` Roman Mamedov [this message]
2013-03-20 12:40 ` Rainer Fügenstein
2013-03-20 13:23 ` joystick
2013-03-20 18:50 ` Chris Murphy
2013-03-20 20:55 ` Chris Murphy
2013-03-21 16:17 ` Roy Sigurd Karlsbakk
2013-03-21 21:30 ` Chris Murphy
2013-03-22 3:31 ` Chris Murphy
2013-03-22 14:22 ` Roy Sigurd Karlsbakk
2013-03-22 16:57 ` Chris Murphy
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