monitor disk activity?

[Dave Stevens]

Hi,

I'd like to know where most of the traffic to mi disk is coming from. I 
usually have an uptime of a week or so between reboots and would like to see 
which parts of the disk are busiest. Something like top but for the disk. 
Suggestions? 

Dave

-- 
Canada must refuse to be entangled in any more wars fought to make the world 
safe for capitalism.

-- The Regina Manifesto, 1933