From: "P. Gautschi" <linuxlist@gautschi.net>
To: Phillip Susi <psusi@ubuntu.com>
Cc: Peter Grandi <pg@lxra2.for.sabi.co.UK>,
Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Disks never stop spinning
Date: Sat, 06 Dec 2014 16:16:23 +0100 [thread overview]
Message-ID: <54831DC7.4070304@gautschi.net> (raw)
In-Reply-To: <5480B726.8070103@ubuntu.com>
> Are you running udisks? If so then that is the culprit. It polls the
> drive's SMART stats every 10 minutes unless the drive is already
> asleep, so if the timeout is>= 10 minutes ( which it seems WD drives
> refuse to go any lower anyhow ), then the drive will never go to
> standby. I posted some patches to fix this a while back on the
> devkit-devel mailing list but I think the udisks maintainer has still
> not gotten around to applying them.
This is indeed the cause in my case. There are the two problems that
overlap: if a shorter time then 10 minutes is set as a standby time,
the WD disk rounds this up to 10 minutes.
And Kubuntu is using udisksd. It is started during a KDE login and
never stopped when logging out.
Is it possible to configure udisks to not do any polling or at a much
longer interval? Or is it possible to safely disable udisksd somehow?
I'm still looking for a practical solution.
regards
Patrick
next prev parent reply other threads:[~2014-12-06 15:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-10 18:44 Disks never stop spinning P. Gautschi
2014-11-13 14:05 ` Peter Grandi
2014-11-14 3:05 ` Patrick Gautschi
2014-11-14 4:11 ` Brad Campbell
2014-12-04 19:33 ` Phillip Susi
2014-12-06 15:16 ` P. Gautschi [this message]
2014-12-08 20:38 ` Phillip Susi
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