What's using the disk so much?

[Patrik Jansson]

>> Hi,
>> vmstat reports that quite a few processes are waiting for io (disk access)
>> so I ran gstat to see how much the drive is working and it says more or
>> less 100% constantly.
>> How can I determine which process (if it's mostly one single process) is
>> using the disk so much? top says the CPU is mostly idle.
>>     
> use "top -m io"
I have completly missed that option, thanks.
I will also checkout sysustils/lsof which J.A. recommended.

-Patrik