Question

Consider a typical disk that rotates at 15000 rotations per minute (rpm) and has a transfer rate of 50106 bytes/sec. If the average seek time of the disk is twice the average rotational delay and the controllers transfer time is 10 times the disk transfer time, the average time (in milliseconds) to read or write a 512-byte sector of the disk is

Answer 1

Consider a typical disk that rotates at 15000 rotations per minute (rpm) and has a transfer rate of 50106 bytes/sec. If the average seek time of the disk is twice the average rotational delay and the controllers transfer time is 10 times the disk transfer time, the average time (in milliseconds) to read or write a 512-byte sector of the disk is