We have a Physical disk which is partitioned into 4 drives,D,E,F,J. I am monitoring individual logical disk idle time and physical disk idle time. These are a day's average values
LogicalDisk(D\%idle time 84.92676725
LogicalDisk(E\%idle time 87.60788474
LogicalDisk(F\%idle time 94.81640539
LogicalDisk(J\%idle time 98.49689629
PhysicalDisk(1 D: E: F: J\% Idle Time 74.4477885
I noticed PhysicalDisk valueis much lower than average of LogicalDisk values,even though LogicalDisk values look good. PhysicalDisk value is suppose to be average of LogicalDisk values right? Why this variation caused?