From: Konstantin Olchanski <olchansk@sam.triumf.ca>
To: Guy <bugzilla@watkins-home.com>
Cc: 'David Mansfield' <md@dm.cobite.com>,
'Jure Pe_ar' <pegasus@nerv.eu.org>,
linux-raid@vger.kernel.org
Subject: Re: raid5, media scans and stripe-wise resync
Date: Mon, 25 Oct 2004 15:02:12 -0700 [thread overview]
Message-ID: <20041025220212.GA30613@sam.triumf.ca> (raw)
In-Reply-To: <200410252029.i9PKTEN26833@www.watkins-home.com>
On Mon, Oct 25, 2004 at 04:29:09PM -0400, anybody wrote:
> 1 disk has a bad sector and another disk fails, game over.
On a single-disk, 1 bad sector kills just the one unlucky file.
On a degraded RAID0 or RAID5, 1 bad sector kills the filesystem.
On a healthy RAID0 or RAID5, 2 bad sectors on different disks kill the filesystem.
Does this make sense?
RAID is less fault tolerant than a single disk?
--
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
next prev parent reply other threads:[~2004-10-25 22:02 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-25 15:36 raid5, media scans and stripe-wise resync David Mansfield
2004-10-25 17:19 ` Jure Pe_ar
2004-10-25 19:43 ` David Mansfield
2004-10-25 20:29 ` Guy
2004-10-25 20:35 ` David Mansfield
2004-10-25 20:48 ` Jure Pe_ar
2004-10-25 21:09 ` David Mansfield
2004-10-25 20:56 ` Guy
2004-10-25 22:02 ` Konstantin Olchanski [this message]
2004-10-26 2:34 ` Guy
2004-10-25 19:39 ` Bruce Lowekamp
2004-10-25 19:47 ` David Mansfield
2004-10-26 9:56 ` berk walker
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