Which process access the disk?

[honk]

Is there a way to find out (or monitor) which processes are accessing a disk? I'm aware of iostat , but it shows the access to the disk as throughput only.

One of my systems is suffering from periodic IO every 3-8 seconds and I want to find out the culprit. Syslog is configured to remote logging only and now I want to know what I forgot = means finding the process-id.

Thanks a lot in advance!
cheers,
honk

 

[DutchDaemon]

fstat(1) may help.

 

[phoenix]

There's also the I/O mode for top(). Just press "m" to switch modes.

 

[vivek]

lsof (not installed by default) can dig out lot more than disk, dir and process names. You will not disappointed.