From: Bill Davidsen <davidsen@tmr.com>
To: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: detection/correction of corruption with raid6
Date: Wed, 17 Dec 2008 09:48:55 -0500 [thread overview]
Message-ID: <49491157.9060805@tmr.com> (raw)
In-Reply-To: <1229464713.6159.16.camel@localhost.localdomain>
Piergiorgio Sartor wrote:
> Why a RAID system might have inconsistencies?
> Why do we have a "check" command at all, to run weekly or monthly?
>
Because alpha particles fly by, most systems don't have ECC memory, a
passing truck and noisy jet create a beat frequency that causes a once
in a century bit flip on a good cable connection, power line noise
creeps in, or maybe an angel farts.
My question is why we don't use available techniques to fix this since
we have the software to find it for us.
--
Bill Davidsen <davidsen@tmr.com>
"Woe unto the statesman who makes war without a reason that will still
be valid when the war is over..." Otto von Bismark
next prev parent reply other threads:[~2008-12-17 14:48 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-16 21:58 detection/correction of corruption with raid6 Piergiorgio Sartor
2008-12-16 22:25 ` Redeeman
2008-12-17 21:52 ` Piergiorgio Sartor
2008-12-19 4:39 ` Neil Brown
2008-12-19 5:38 ` Redeeman
2008-12-17 14:48 ` Bill Davidsen [this message]
2008-12-17 15:50 ` David Lethe
[not found] ` <494960E8.8020407@tmr.com>
2008-12-17 21:47 ` David Lethe
-- strict thread matches above, loose matches on Subject: below --
2008-12-19 8:40 piergiorgio.sartor
2008-12-19 13:10 ` Redeeman
2008-12-05 21:00 Redeeman
2008-12-05 21:02 ` Justin Piszcz
2008-12-05 21:06 ` Redeeman
2008-12-05 21:09 ` Justin Piszcz
2008-12-05 21:12 ` Redeeman
2008-12-05 21:17 ` Justin Piszcz
2008-12-05 21:30 ` Michał Przyłuski
2008-12-05 22:12 ` Peter Rabbitson
2008-12-05 22:26 ` Michał Przyłuski
2008-12-05 22:43 ` Greg Freemyer
2008-12-06 0:39 ` Roger Heflin
2008-12-12 15:31 ` Redeeman
2008-12-16 2:33 ` Neil Brown
2008-12-16 6:33 ` Redeeman
2008-12-16 7:59 ` Mattias Wadenstein
2008-12-16 22:20 ` Chris Worley
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