From: NeilBrown <neilb@suse.de>
To: Marco Schindler <marco.schindler@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: frequent disk activity with mdadm-3.3
Date: Fri, 12 Sep 2014 08:24:03 +1000 [thread overview]
Message-ID: <20140912082403.549fc298@notabene.brown> (raw)
In-Reply-To: <AB305DF4-9DCC-47E1-9B29-130E211D4B4E@gmail.com>
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On Fri, 12 Sep 2014 00:05:08 +0200 Marco Schindler
<marco.schindler@gmail.com> wrote:
> Hello,
>
> Im seeing frequent disk activity on all raid drives from mdadm since upgrading to 3.3.1/3.3.2 from 3.2.
> It keeps drives from sleeping (disk access every ~15 minutes). Is it intentional?
No.
>
> I reported a similar issue for udev a few weeks ago: https://bugs.gentoo.org/show_bug.cgi?id=518748
In that bug report you mention upgraded udev. Here you mention upgrading
mdadm.... a bit confusing.
Can you use "blktrace" to gather details on exactly what is being read and
when, and hopefully which process is doing it?
Is "mdadm --monitor" (or "-F") running? If you kill it does the disk
activity go away?
NeilBrown
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next prev parent reply other threads:[~2014-09-11 22:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-11 22:05 frequent disk activity with mdadm-3.3 Marco Schindler
2014-09-11 22:24 ` NeilBrown [this message]
2014-09-11 22:45 ` Marco Schindler
2014-09-12 12:15 ` Marco Schindler
2014-09-15 0:18 ` NeilBrown
2014-09-15 10:52 ` Marco Schindler
2014-09-18 10:03 ` NeilBrown
2014-09-18 10:38 ` Marco Schindler
2014-09-18 11:09 ` NeilBrown
2014-09-18 11:22 ` Marco Schindler
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