[sllug-members]: Determining which process is writing to disk?

[Andrew GIlmore]

I'm trying to figure out which process has my server averaging 1.5 MB/s
of disk writes. 

Any ideas? 

I'm aware of iostat, lsof, etc, but haven't found any information on
finding which process is actually doing the io.

For reference, RH/Fedora distros.

Andrew