Read this paper: “ Revisiting HDD Rules of Thumb: 1/3 Is Not (Quite) the Average Seek Distance”, MSST 2024. https://www.msstconference.org/MSST-history/2024/Pa

Read this paper: “ Revisiting HDD Rules of Thumb: 1/3 Is Not (Quite) the Average Seek Distance”, MSST 2024. https://www.msstconference.org/MSST-history/2024/Papers/msst24-1.1.pdf https://www.msstconference.org/MSST-history/2024/Papers/msst... It has a very good approximation for seek time based on the track radius delta, with experimental validation on a modern drive.