Here's an interesting patent document awarded to WD:
View attachment WD Spiral Servo.pdf
Apparently WD writes some spiral servo tracks onto their drives (or at least is planning to). Must be a technique to speed up the seek times when jumping long distances across the platter. Pretty cool concept.
View attachment WD Spiral Servo.pdf
Apparently WD writes some spiral servo tracks onto their drives (or at least is planning to). Must be a technique to speed up the seek times when jumping long distances across the platter. Pretty cool concept.
