From: Neil Brown <neilb@suse.de>
To: Asdo <asdo@shiftmail.org>
Cc: Justin Piszcz <jpiszcz@lucidpixels.com>,
linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Help on first dangerous scrub / suggestions
Date: Sat, 28 Nov 2009 08:21:33 +1100 [thread overview]
Message-ID: <20091128082133.62dcb122@notabene.brown> (raw)
In-Reply-To: <4B101653.8040904@shiftmail.org>
On Fri, 27 Nov 2009 19:11:31 +0100
Asdo <asdo@shiftmail.org> wrote:
> Asdo wrote:
> > ....
> > Without knowing this I will probably opt for your way: rsync data out,
> > starting from the smallest and most important stuff...
> > ...
>
> I had another thought:
>
> If I take the computer offline, boot with a livecd (one of the worst
> messes here is that the root filesystem is also in that array), run the
> raid6 array in READONLY MODE and maybe without spares, then I start a
> check (scrub) ...
If the array is marked read-only, it wont do a scrub.
However if you simply don't have any filesystem mounted, then the array
will remain 'clean' and any failures are less likely cause further
failures.
So doing it off line is a good idea, but setting the array to read-only
won't work.
NeilBrown
next prev parent reply other threads:[~2009-11-27 21:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 12:14 Help on first dangerous scrub / suggestions Asdo
2009-11-26 12:22 ` Justin Piszcz
2009-11-26 14:06 ` Asdo
2009-11-26 14:38 ` Justin Piszcz
2009-11-26 19:02 ` Asdo
2009-11-26 20:55 ` Justin Piszcz
2009-11-27 13:39 ` Asdo
2009-11-27 18:11 ` Asdo
2009-11-27 21:08 ` Justin Piszcz
2009-11-27 21:21 ` Neil Brown [this message]
2009-12-02 10:15 ` Asdo
2009-11-26 14:03 ` Mikael Abrahamsson
2009-11-26 14:13 ` Asdo
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=20091128082133.62dcb122@notabene.brown \
--to=neilb@suse.de \
--cc=asdo@shiftmail.org \
--cc=jpiszcz@lucidpixels.com \
--cc=linux-raid@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).