Data Format
Physics Cylinder |
System space
Cylinder0
Head0
1
Cylinder0
Head1
|
|
| Cylinder0 |
| ||
|
|
|
|
| 1 |
|
| Head |
|
|
| ||
|
|
|
| |||
Zone0 |
|
|
|
|
| |
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
Spare sectors for each cell
User space
Track
|
|
|
|
|
|
| ||
|
|
|
|
| Spare sectors for each cell | |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Change |
| 1 |
|
|
|
|
| |
for cell |
|
|
|
|
|
|
| |
|
| Alternate Cell | ||||||
(b) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
|
| ||
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
Zone1
Zone
(C) | Spare Cylinder |
Last Cylinder
Note: Spare sectors on the last track in each cylinder 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.