From: Matthias Urlichs <matthias@urlichs.de>
To: "Majed B." <majedb@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Re-map disk sectors in userspace when rewriting after read errors
Date: Tue, 15 Sep 2009 18:05:53 +0000 [thread overview]
Message-ID: <1253037953.7774.131.camel@kiste> (raw)
In-Reply-To: <70ed7c3e0909151002y5f4690b1j26d33dc297af7795@mail.gmail.com>
On Tue, 2009-09-15 at 20:02 +0300, Majed B. wrote:
> Out of curiosity, how will you find the sectors/blocks that
> reconstruct a certain bad sector? Is the data spread to the same block
> number on all disks?
Yes. It's a byte-level operation, actually.
The only part that's moderately tricky is, on RAID6, to determine which
partition the Q drive is. Fortunately, mdadm already contains (almost)
all the necessary logic.
next prev parent reply other threads:[~2009-09-15 18:05 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-15 6:23 Re-map disk sectors in userspace when rewriting after read errors Matthias Urlichs
2009-09-15 6:45 ` berk walker
2009-09-15 7:23 ` Matthias Urlichs
2009-09-15 7:13 ` Alex Butcher
2009-09-15 7:29 ` Matthias Urlichs
2009-09-15 7:37 ` Alex Butcher
2009-09-15 10:48 ` Matthias Urlichs
2009-09-16 9:41 ` Goswin von Brederlow
2009-09-16 13:13 ` Matthias Urlichs
2009-09-18 8:17 ` Majed B.
2009-09-18 8:28 ` Robin Hill
2009-09-18 9:57 ` Majed B.
2009-09-18 10:22 ` Robin Hill
2009-09-18 10:52 ` Majed B.
2009-09-18 11:15 ` Robin Hill
2009-09-18 11:35 ` Matthias Urlichs
2009-09-18 17:44 ` John Robinson
2009-09-18 18:02 ` Greg Freemyer
2009-09-18 20:13 ` Majed B.
2009-10-02 13:55 ` Bill Davidsen
2009-09-15 10:40 ` Majed B.
2009-09-15 10:52 ` Matthias Urlichs
2009-09-15 11:03 ` Majed B.
2009-09-15 17:02 ` Majed B.
2009-09-15 18:05 ` Matthias Urlichs [this message]
2009-09-15 18:14 ` Majed B.
2009-09-15 18:44 ` Matthias Urlichs
2009-09-16 9:31 ` Majed B.
2009-09-16 9:44 ` Matthias Urlichs
2009-09-16 9:52 ` Majed B.
2009-09-16 13:05 ` Alex Butcher
2009-09-16 10:00 ` Robin Hill
2009-09-16 10:07 ` Majed B.
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