From: David Greaves <david@dgreaves.com>
To: Matthias Urlichs <matthias@urlichs.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: How to avoid complete rebuild of RAID 6 array (6/8 active devices)
Date: Mon, 14 Jul 2008 17:14:44 +0100 [thread overview]
Message-ID: <487B7B74.3010903@dgreaves.com> (raw)
In-Reply-To: <g5fam0$8oe$1@ger.gmane.org>
Matthias Urlichs wrote:
> On Sun, 29 Jun 2008 17:58:30 -0400, Bill Davidsen wrote:
>
>> Of course build an array out of drives so unstable that you can't safelt
>> *run* a check is another topic.
>
> It's a topic that needs to be addressed sooner or later, however.
>
> Let's face it, drives do develop bad spots.
>
> Tossing a perfectly good drive because 0.0000064% of the data cannot be
> read is wasteful (assuming a 64-kByte area of an 1-terabyte disk).
I've found that once a disk starts to go bad there is a very strong tendency for
it to continue to deteriorate.
So I don't replace disks because they have a bad sector; I replace them because
I suspect they will fail more as time goes by.
Sure, some don't - I don't want to take that chance.
David
next prev parent reply other threads:[~2008-07-14 16:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-25 6:37 How to avoid complete rebuild of RAID 6 array (6/8 active devices) Dave Moon
2008-06-25 16:13 ` Andre Noll
2008-06-27 10:40 ` Neil Brown
2008-06-29 21:58 ` Bill Davidsen
2008-07-14 10:44 ` Matthias Urlichs
2008-07-14 16:14 ` David Greaves [this message]
2008-07-14 16:54 ` David Lethe
2008-07-14 22:58 ` Matthias Urlichs
2008-07-14 23:54 ` Richard Scobie
2008-07-15 0:05 ` Matthias Urlichs
2008-07-15 14:24 ` Keld Jørn Simonsen
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