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
prev 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]
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