All of lore.kernel.org
 help / color / mirror / Atom feed
From: Oliver Martin <oliver.martin@student.tuwien.ac.at>
To: Neil Brown <neilb@suse.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: Spontaneous rebuild
Date: Mon, 03 Dec 2007 03:35:51 +0100	[thread overview]
Message-ID: <47536B87.2040708@student.tuwien.ac.at> (raw)
In-Reply-To: <18259.15453.811495.461016@notabene.brown>

Neil Brown schrieb:
> 
> This isn't a resync, it is a data check.  "Dec  2" is the first Sunday
> of the month.  You probably have a crontab entries that does
>    echo check > /sys/block/mdX/md/sync_action
> 
> early on the first Sunday of the month.  I know that Debian does this.
> 
> It is good to do this occasionally to catch sleeping bad blocks.
> 
Duh, thanks for clearing this up. I guess what set the alarm off was
getting what looked like a rebuild to me while stress testing. Yes, I'm
running Debian and I have exactly this entry in my crontab... Perhaps
they should add a short log entry like "starting periodic RAID check" so
that people know there is nothing to worry about.

Or maybe I should just RTFC (read the fine crontab) ;-)

Oliver

      parent reply	other threads:[~2007-12-03  2:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-02  4:12 Spontaneous rebuild Oliver Martin
2007-12-02  9:45 ` Justin Piszcz
2007-12-02 13:07   ` Oliver Martin
2007-12-02 21:16     ` Janek Kozicki
2007-12-02 23:14 ` Neil Brown
2007-12-02 23:28   ` Justin Piszcz
2007-12-03  0:15     ` Richard Scobie
2007-12-03  2:35   ` Oliver Martin [this message]

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=47536B87.2040708@student.tuwien.ac.at \
    --to=oliver.martin@student.tuwien.ac.at \
    --cc=linux-raid@vger.kernel.org \
    --cc=neilb@suse.de \
    /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.