From: Phillip Susi <psusi@ubuntu.com>
To: "P. Gautschi" <linuxlist@gautschi.net>
Cc: Peter Grandi <pg@lxra2.for.sabi.co.UK>,
Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Disks never stop spinning
Date: Mon, 08 Dec 2014 15:38:55 -0500 [thread overview]
Message-ID: <54860C5F.3070306@ubuntu.com> (raw)
In-Reply-To: <54831DC7.4070304@gautschi.net>
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On 12/6/2014 10:16 AM, P. Gautschi wrote:
>> 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.
You can build and install my patched version. See:
https://launchpad.net/bugs/1281588
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prev parent reply other threads:[~2014-12-08 20:38 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
2014-12-08 20:38 ` Phillip Susi [this message]
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