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I have a Linux server, and it's doing a lot of disk io. There is one process that is doing most of the disk writes. I found this out with iotop, which shows the processes that are doing disk I/O. Is there an equivant programme (in the debian lenny apt repositories) that will show me what files are being written to? a 'top' like interface would be great? Is this even possible?

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lsof may help if you know the process you want to watch:

lsof -p <pid> -r 5

-r is the number of seconds between checks.

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that'll show me what files are being written, is there any way to see how much data is being written? – Rory Jan 20 '11 at 12:10
I am not aware of a tool which does both, so in the meantime you may just want to watch the files (once identified with lsof) with du over some period of time to see the changes. – Cakemox Jan 20 '11 at 13:14
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