Here is how Disk IO calculation
works:
We run diskio.vbs for getting DISK IO details. Here is a sample
output:
Microsoft (R) Windows Script Host
Version 5.8
Copyright (C) Microsoft
Corporation. All rights reserved.
PHYDISK^0 C: D: E:
F:^0^13^13^0.016^0.562
PHYDISK^1 J:^0^0^0^0.000^0
IdleTime = (100 * (IdleTime2 -
IdleTime1) / (TimeBase2 - TimeBase1))
Where IdleTime = Percentage of disk
Idle time.
Busytime(%) = 100 - IdleTime(%)