[CentOS] Control IO related to a process

>nice doesn't really do anything with respect to I/O.

Yes I tried it and it never made a diff from one end of
the spectrum to the other:)

>The best way to control I/O in this manor is to physically
>isolate it from the rest of the system(be it on a different
>controller connected to different disks etc).

Well, not always possible!

I am going to try Peter's suggestion of ionice tonight.

Thanks everyone!
jlc