From: Phillip Susi <psusi@ubuntu.com>
To: Patrick Gautschi <patrick@gautschi.net>,
Peter Grandi <pg@lxra2.for.sabi.co.UK>
Cc: Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Disks never stop spinning
Date: Thu, 04 Dec 2014 14:33:58 -0500 [thread overview]
Message-ID: <5480B726.8070103@ubuntu.com> (raw)
In-Reply-To: <54657187.6020306@gautschi.net>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 11/13/2014 10:05 PM, Patrick Gautschi wrote:
>> That means something else is waking up those disks. To verify
>> this use something like:
>
> FS are not mounted and arrays stopped. There is nothing that wakes
> them up. If a switch them off manually with hdparm -Y they stay
> off.
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.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (MingW32)
iQEcBAEBAgAGBQJUgLcmAAoJENRVrw2cjl5RNkgIAKY2UyBO/I5Tkm9gA6ALn9wx
mcQWsS5gacWitu8ALa/dO7ON75vs+KV0NHjeEc0J+x9jdo02M7gg5PXG3YH1cxzi
mzW78NsSJXwImaZsaCDL4bwYCx6o91wUCuW29Kybvzh+J8u41jW/+5YnX10Mg7jp
o/CMY6O2vgG+MAOd2YIi7LMjgJRWg3my3PPrc4ahaBT4+9L7vHWExy9eRhemQvDN
1e2Q9sDk+uGvG1KCAVG24+2JcNyTEjN53x4FaPkw9EQ0bmUNLrYPksQUl6D/CbGB
mg+Jrcq65cTHp5vpbI3UAd4uKAl2TnoyThIs1cO98spiF6s1MhhRFp+3Vtu8tLg=
=CcWo
-----END PGP SIGNATURE-----
next prev parent reply other threads:[~2014-12-04 19:33 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 [this message]
2014-12-06 15:16 ` P. Gautschi
2014-12-08 20:38 ` Phillip Susi
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=5480B726.8070103@ubuntu.com \
--to=psusi@ubuntu.com \
--cc=linux-raid@vger.kernel.org \
--cc=patrick@gautschi.net \
--cc=pg@lxra2.for.sabi.co.UK \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).