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Date: Thu, 06 Mar 2008 09:58:41 -0500
From: Mark Lord <liml@rtr.ca>
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To: =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= <syrjala@sci.fi>,
       Krzysztof Halasa <khc@pm.waw.pl>, Zan Lynx <zlynx@acm.org>,
       Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
       Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Andrew Morton <akpm@linux-foundation.org>, jeff@garzik.org,
       linux-ide@vger.kernel.org, alan@redhat.com,
       linux-kernel@vger.kernel.org
Subject: Re: [patch 3/3] pata: "I do not think it means, what you think it
 means."
References: <200803042316.m24NGI7k002489@imap1.linux-foundation.org> <20080304173058.7679b7c8.akpm@linux-foundation.org> <20080305115610.397b3ea3@the-village.bc.nu> <200803051421.14167.bzolnier@gmail.com> <m3ir015du5.fsf@maximus.localdomain> <58cb370e0803050846t7dbd65d6ocfec7ca5e93aa6db@mail.gmail.com> <m3ejap5cvz.fsf@maximus.localdomain> <58cb370e0803050922p7695771cq393120ed5906efb7@mail.gmail.com> <1204742033.6408.37.camel@localhost> <m37iggbpqu.fsf@maximus.localdomain> <20080306111304.GK531@sci.fi>
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Ville Syrjälä wrote:
> On Thu, Mar 06, 2008 at 02:33:29AM +0100, Krzysztof Halasa wrote:
>> Zan Lynx <zlynx@acm.org> writes:
>>
>>> In my experience what they needed was proper cooling.  I have a 3ware
>>> RAID-5 array of 4 120 GB DeskStar drives still working.
>> I think the largest "deathstars" (75GXP?) were 75 GB.
> 
> AFAIK there were basically two series of deathstars. The original
> DTLA<something> and the more recent IC35<something>. The IC35 series
> were bigger (120GB is the most common size I've seen for those).
> Proper cooling and firmware upgrade usually fixed the deathstarness on
> both series. I still have some of both, not in active use for a year or
> two but still working. As a strange coincidence I was just pulling out
> some old data from them yesterday.
..

The original Deathstar ailment had nothing to do with firmware or cooling.
But rather, a bad batch of chips that IBM had the misfortune to use a lot of.

The chips would grow tiny internal whiskers over a period of 2+ years,
and eventually short circuit themselves.

My last one died here just a few weeks ago, after sitting on the shelf
for nearly all of it's life.  Never more than perhaps 40 power-on hours total,
and never enough to get very warm.

Cheers

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