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Zone | Cell | Cylinder | ~ |
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17n
Internal test cylinder |
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SAS69 | ~ |
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SA0 |
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User Space for Cell
Spare Sectors per Cell 0
User Space for Cell
User space
Spare Sectors per Cell 1
(Primary 
Cylinder
0 - (n - 1))
User Space for Cell
Spare Sectors per Cell P1
Alternate Cylinder
User Space for Cell
.
.
User Space for Cell
n = MAP3147NC/NP: 47,589 MAP3735NC/NP: 47,645 MAP3367NC/NP: 47,771
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 IDD intends to increase the storage capacity by dividing all cylinders into several zones and changing a recording density of each zone. Tables 3.1 to 3.3 show the zone layout and the track capacity.
