How to make my disk very bus?
I want to run some test to evaluate the performance of my box when its hard drive is super busy (%IOutil = 100%). To simulate my tool, I need to have a dummy script that can keep my hard disk busy? I came up with some scripts but it is not enough... Any help is appreciated.

    for i in `seq 1 10000`
    do 
        dd if=/dev/urandom of=tmp/disk_load_test_$i bs=256k count=256
    done

How to make my disk very bus?
===

I want to run some test to evaluate the performance of my box when its hard drive is super busy (%IOutil = 100%). To simulate my tool, I need to have a dummy script that can keep my hard disk busy? I came up with some scripts but it is not enough... Any help is appreciated.

    for i in `seq 1 10000`
    do 
        dd if=/dev/urandom of=tmp/disk_load_test_$i bs=256k count=256
    done
