Data Format
| Physics Cylinder | - Z | |
|
|
| - 4 |
|
| Cylinder0 | |
| Head0 |
| 1 |
|
|
| |
|
|
| m- 1 |
| Cell0 Head1 | Cylinder1 | |
|
| ||
|
|
| |
|
| Cylinder0 | |
| Head |
| 1 |
Zone0 |
|
| |
|
|
| |
|
|
| m- 1 |
System space
Spare sectors for each cell
User Space
Cell
Zone1
Zone 
0
Spare sectors for each cell
Change1 for cell
(10)
9
Last Cylinder
Alternate Cell
Spare
Cylinder
Note: | Spare sectors on the last track in each cell are not necessarily placed at the end of the track |
| because of a track skew or a cylinder skew. (Details are explained in Subsection 3.1.3.) |
Figure 3.1 Cylinder configuration
Apart from the above logical configuration, the HDDs intend to increase the storage capacity by dividing all cylinders into several zones and changing a recording density of each zone.
28 |
