From: "Dan Williams" <dan.j.williams@intel.com>
To: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: mingo@redhat.com, neilb@suse.de, linux-raid@vger.kernel.org
Subject: Re: raid6 rebuild
Date: Wed, 4 Apr 2007 20:22:00 -0700 [thread overview]
Message-ID: <e9c3a7c20704042022p6088bdcdl97740d2a95818caf@mail.gmail.com> (raw)
In-Reply-To: <20070404194638.GB3712@xi.wantstofly.org>
On 4/4/07, Lennert Buytenhek <buytenh@wantstofly.org> wrote:
> (please CC on replies, not subscribed to linux-raid@)
>
> Hi!
>
> While my RAID6 array was rebuilding after one disk had failed (which
> I replaced), a second disk failed[*], and this caused the rebuild
> process to start over from the beginning.
>
> Why would the rebuild need to start over from the beginning in this
> case? Why couldn't it just continue from where it was?
>
I believe it is because raid5 and raid6 share the same error handler
which sets MD_RECOVERY_ERR after losing any disk. It should probably
not set this flag in 1-disk lost raid6 case, but I might be
overlooking something else.
>
> thanks,
> Lennert
>
Dan
next prev parent reply other threads:[~2007-04-05 3:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-04 19:46 raid6 rebuild Lennert Buytenhek
2007-04-05 3:22 ` Dan Williams [this message]
2007-04-05 5:50 ` Lennert Buytenhek
2007-04-05 13:54 ` Bill Davidsen
2007-04-05 14:06 ` Lennert Buytenhek
2007-04-05 16:59 ` Dan Williams
2007-04-11 1:43 ` Neil Brown
2007-04-05 6:03 ` Gordon Henderson
2007-04-05 6:21 ` Lennert Buytenhek
2007-04-05 8:15 ` Gordon Henderson
2007-04-05 8:48 ` Lennert Buytenhek
2007-04-05 10:13 ` Andre Noll
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