From: "Tvrtko A. Ursulin" <tvrtko@ursulin.net>
To: Christian Pernegger <pernegger@gmail.com>
Cc: Helge Hafting <helge.hafting@aitel.hist.no>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Western Digital GreenPower drives and Linux
Date: Wed, 16 Apr 2008 20:44:03 +0100 [thread overview]
Message-ID: <200804162044.03569.tvrtko@ursulin.net> (raw)
In-Reply-To: <bb145bd20804161059u4fe45debs22adf337fef143aa@mail.gmail.com>
On Wednesday 16 April 2008 18:59:24 Christian Pernegger wrote:
> > > At this rate the disk would reach it's design limit for load/unload
> > > cycles
> >
> > in around 80 days.
>
> Design *minimum* for load/unload cycles is reportedly 600K cycles,
> that would give me over 7.5 years of 24/7 operation, which I can live
> with in cheap high capacity drives that have only 5 years of warranty
> anyway.
That is what they said to me as well. But their datasheet says it is 300k for
desktop and 600k cycles for RAID edition drives. It also doesn't mention
minimum but "Controlled unloads at ambient condition". But that's probably
fine.. you are just in luck that you don't use them as system drives. As I
said before, with timer set to 25.5s they are fine for me now - I am seeing
just two unload cycles per hour on average, that is by factor of 100 less
than before.
Tvrtko
next prev parent reply other threads:[~2008-04-16 19:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-09 20:18 Western Digital GreenPower drives and Linux Tvrtko A. Ursulin
2008-04-10 7:48 ` Tvrtko A. Ursulin
2008-04-10 12:44 ` Kasper Sandberg
2008-04-10 15:01 ` Christian Pernegger
2008-04-12 17:11 ` Jan Engelhardt
2008-04-13 15:41 ` Mark Lord
2008-04-16 11:40 ` Helge Hafting
2008-04-16 17:59 ` Christian Pernegger
2008-04-16 18:18 ` Mark Lord
2008-04-16 19:44 ` Tvrtko A. Ursulin [this message]
2008-04-16 19:46 ` Tvrtko A. Ursulin
-- strict thread matches above, loose matches on Subject: below --
2008-04-10 22:36 devzero
2008-04-11 21:00 ` Tvrtko A. Ursulin
2008-04-12 3:19 ` Mike Snitzer
2008-04-12 7:11 ` Tvrtko A. Ursulin
2008-04-12 15:20 ` Mike Snitzer
2008-04-12 15:56 ` Mike Snitzer
2008-04-13 8:30 ` Niels
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