Messages in this thread | | | Date | Tue, 23 Jun 2009 19:14:09 +0100 | From | Matthew Garrett <> | Subject | Re: finding reasons for disk spin ups |
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On Tue, Jun 23, 2009 at 07:00:06PM +0200, Norbert Preining wrote: > 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?
Yes. /proc/sys/vm/block_dump - set that to 1. Make sure you disable syslog first.
-- Matthew Garrett | mjg59@srcf.ucam.org
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