[Beowulf] petabyte for $117k

Bruno Coutinho coutinho at dcc.ufmg.br
Wed Sep 2 13:43:46 EDT 2009


2009/9/2 Eugen Leitl <eugen at leitl.org>

> On Tue, Sep 01, 2009 at 04:28:10PM -0700, Bill Broadley wrote:
>
> > I'm very curious to hear how they are in production.  I've had vibration
> of
>
> My thoughts exactly.
>
> > large sets of drives basically render the consumer drives useless.
>  Timeouts,
> > highly variable performance, drives constantly dropping out of raids.  It
> > became especially fun when the heavy I/O of a rebuild knocks additional
> drives
> > out of the array.
>
> Also my experience down to a T.
>
> > I'd also worry that running the consumer drives well out of spec (both in
> duty
> > cycle and vibration) might significantly shorten their lives.
> >
> > Are the 7200.11 1.5TB seagate's particularly vibration resistant?
>
> No. They're awful, as the entire 7200.11 line (I've had failures
> in 750 GByte, 1 TByte, 1.5 TByte, everywhere, even with reasonably
> small drive populations).
>
>
According to this site, the main difference between Seagate desktop and ES
series is that the latter are more vibration resistant.
http://techreport.com/articles.x/10748
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