From: Neil Brown <neilb@suse.de>
To: Rich Rauenzahn <rrauenza@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: reshape from raid5 to raid6 failed -- and backup file is gone?
Date: Fri, 23 Apr 2010 08:09:38 +1000 [thread overview]
Message-ID: <20100423080938.5ef90287@notabene.brown> (raw)
In-Reply-To: <q2u657cbef51004221446l41381e31hf26f96072b04983e@mail.gmail.com>
On Thu, 22 Apr 2010 14:46:32 -0700
Rich Rauenzahn <rrauenza@gmail.com> wrote:
> On Thu, Apr 22, 2010 at 11:32 AM, Rich Rauenzahn <rrauenza@gmail.com> wrote:
> > The system froze sometime in the middle of the night, and oddly... the
> > --backup-file I specified last night is missing. Is there any reason
> > that mdadm would unlink it for a short span of time during the
> > reshape?
>
> I'm at the point now where I'm just looking for triage advice so I can
> work on it tonight. Most of the contents were backed up offsite, but a
> little bit out of date. Nothing critical, but inconvenient, like
> recovery images for relative's systems.
>
> Do I kill it and start over, or is there any hope of recovering from
> the reshape?
It is very odd that the backup file disappeared. What is
/.MEDIA/tmp
?? Not a tmpfs filesystem I hope...
You could hack mdadm to assemble the array even without a backup file.
Get 'Grow_restart' to always return 0.
Then most of your data should be assessible, but the could be a section in
the middle which is currupt.
NeilBrown
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2010-04-22 22:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 18:32 reshape from raid5 to raid6 failed -- and backup file is gone? Rich Rauenzahn
2010-04-22 21:46 ` Rich Rauenzahn
2010-04-22 22:09 ` Neil Brown [this message]
2010-04-22 22:26 ` Rich Rauenzahn
2010-04-22 22:37 ` Neil Brown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100423080938.5ef90287@notabene.brown \
--to=neilb@suse.de \
--cc=linux-raid@vger.kernel.org \
--cc=rrauenza@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.