Consider a typical disk that rotates at 30000 rotations per minute(RPM) and has a transfer rate of 40Mbps.If the average seek time of the disk is twice the average rotational delay and the controller's transfer time is 8 times the disk transfer time,the average time to read or write a 256 byte sector of the disk is __________msec.(upto 4 decimal places)
My queries-:
should the time taken by the controller be taken into account when calculating the average time?
I have calculated it in the following way-:
time taken=seek time+rotational latency+transfer time+controller time
=2+1+0.0512+0.4096
=3.4608