Fujitsu MHN2150AT Manual/User Guide - Page 70
Data-surface servo format, This area is used as the user data area SA area.
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Theory of Device Operation 4.7.2 Data-surface servo format Figure 4.8 describes the physical layout of the servo frame. The three areas indicated by (1) to (3) in Figure 4.8 are described below. (1) Inner guard band This area is located inside the user area, and the rotational speed of the VCM can be controlled on this cylinder area for head moving. (2) Data area This area is used as the user data area SA area. (3) Outer guard band This area is located at outer position of the user data area, and the rotational speed of the spindle can be controlled on this cylinder area for head moving. 4-18 C141-E120-02EN
Theory of Device Operation
4-18
C141-E120-02EN
4.7.2
Data-surface servo format
Figure 4.8 describes the physical layout of the servo frame.
The three areas
indicated by (1) to (3) in Figure 4.8 are described below.
(1)
Inner guard band
This area is located inside the user area, and the rotational speed of the VCM can
be controlled on this cylinder area for head moving.
(2)
Data area
This area is used as the user data area SA area.
(3)
Outer guard band
This area is located at outer position of the user data area, and the rotational speed
of the spindle can be controlled on this cylinder area for head moving.