looking for proc to find out reason for hd activity

[mylo]

Hi all,

since one of the latetst d-u's (roundabout 2-3 weeks ago), I hear a more or less constant activity on one of my two disks.
The first disk houses the os (siduction only) and some data partitions, the second one just data parts.

I tried to find out what is going on using htop. However I could not really find out, how to identify the process respectively the driver for activity, letting my hd (which one of the two ever) constantly klacking.

How shall I proceed to isolating the root cause?

[dibl]

This looks like it might be a good starting place.

[mylo]

Hi dibl,

yes looks to be a good one. Thanks!

[rolandx1]

start as root:

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iotop -oa

or something like

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iotop -oaqqb > io.log

if its not installed:

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apt-get install iotop