For a magnetic disk with concentric circular tracks, the seek latency is not linearly proportional to the seek distance due to

1. Anon-uniform distribution of requests
2. Barm starting or stopping inertia
3. Chigher capacity of tracks on the periphery of the platter
4. DMore than one of the above

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: B. arm starting or stopping inertia

Explanation

The arm must accelerate and decelerate, so short seeks take disproportionately long; seek time is not linear in distance.