Corrupted files

Sean Caron scaron at umich.edu
Wed Sep 10 09:54:33 CDT 2014


I am probably overseeing a similar number (3-4000) of Hitachi A7K3000s,
A7K2000s and WDC RE4s and I probably see a few failures a month. When we
are building a new machine and we get a fresh shipment in, maybe 10%
failure rate right out of the box. Those that survive the burn-in usually
do pretty good. Man, you have my sympathy with that failure rate in excess
of 50%... even the WDC Greens weren't THAT bad (although it probably got
close, as we neared closer and closer to EOLing them... and they had been
moved to third-tier "backup storage" status by that point). Thankfully they
are gone now, LOL.

You're right, esp. in large installations, it's critical to do your
homework on drives, pick a good candidate, validate it and then run with
them. Even with the good ones, you've gotta keep a watchful eye... "when
you buy them in bulk, they fail in bulk".

Best,

Sean



On Wed, Sep 10, 2014 at 10:31 AM, Emmanuel Florac <eflorac at intellique.com>
wrote:

> Le Tue, 09 Sep 2014 20:43:08 -0500
> Leslie Rhorer <lrhorer at mygrande.net> écrivait:
>
> >       None of the failed drives were WD green.  All three and the
> > previous four were Seagate.  I realize that is not a large
> > statistical sample.
> >
>
> If you're interested in large statistical samples, on a grand total of
> 4000 1 TB Seagate Barracuda ES2, I had to replace 2100 of them over the
> course of 3 years. I still have a couple of hundred of these
> unfortunate pieces of crap in service, and they still represent the
> vast majority of unexpected RAID malfunctions, urgent replacements,
> late night calls and other "interesting side activities".
>
> I wouldn't buy anything labeled Seagate nowadays. Their drives have
> been the baddest train wreck since the dreaded 9 GB Micropolis back in
> 1994 (or was it 1995?).
>
> --
> ------------------------------------------------------------------------
> Emmanuel Florac     |   Direction technique
>                     |   Intellique
>                     |   <eflorac at intellique.com>
>                     |   +33 1 78 94 84 02
> ------------------------------------------------------------------------
>
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