Unmounted disk still spins up regularly

Posted by Erik Johansson on Ask Ubuntu See other posts from Ask Ubuntu or by Erik Johansson
Published on 2011-02-09T22:47:06Z Indexed on 2011/02/09 23:34 UTC
Read the original article Hit count: 363

Filed under:

power-management

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disk

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hdd

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spindown

I just added a disk, with partitions but none of them are mounted. The disk will still spin up every now and then. it goes like this:

### disk spins up
hdparm  -Y /dev/sdb;date
/dev/sdb:
 issuing sleep command
9 feb 2011 23.37.08 CET
### disk spins up
hdparm  -Y /dev/sdb;date
/dev/sdb:
 issuing sleep command
9 feb 2011 23.46.12 CET

Also it always spins up when I shut down the computer.

Any tips are welcome, e.g. how can I figure out which process is accessing the disk, are there any daemons doing this? I know it isn't a cron job.

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