FUJITSU MHV2120AT User Manual
Page 72
Theory of Device Operation
4-16
C141-E218
Figure 4.7 Physical sector servo configuration on disk surface
OGB
Data area
IGB
expand
Servo frame
(172 servo frames per revolution)
CYLn + 1
CYLn
CYLn – 1 (n: even number)
W/R
Recovery
Servo Mark
Gray Code
W/R Recovery
Servo Mark
Gray Code
W/R Recovery
Servo Mark
Gray Code
EVEN1
ODD
EVEN2
PAD
Diameter
direction
Circumference
Direction
Erase: DC erase
area