finding reasons for disk spin ups

From: Norbert Preining
Date: Tue Jun 23 2009 - 13:22:30 EST


Hi all,
(please cc)

is there a way I can find the reasons why my disk is spinning up again
and again? I tried to monitor io with
iotop -o -d 0.01 -b -qqq -t
but sometimes the disks spins up without anything showing up.
The partitions are mounted with noatime.

Is there any kernel interface telling me why/whcih process called for
the sync so that the disk wakes up?

Thanks a lot

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@xxxxxxxx> Vienna University of Technology
Debian Developer <preining@xxxxxxxxxx> Debian TeX Group
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
`My doctor says that I have a malformed public-duty gland
and a natural deficiency in moral fibre, and that I am
therefore excused from saving Universes.'
--- Ford's last ditch attempt to get out of helping
--- Slartibartfast.
--- Douglas Adams, The Hitchhikers Guide to the Galaxy
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/