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C141-E064-03EN3 - 2
* 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.)
Cylinder 1
(MAF) (MAG) (MAE)
m+n+1
10,200 / 9,866 / 12,000
m+n
m+n–1
Cylinder 0
Cylinder –26
to
Cylinder –4
User space
System space
Internal test space
Cylinder –37
to
Cylinder –30
•
Primary Cylinder 0
to
Primary Cylinder (m–1)
Spare sector for each cylinder
(+ Cylinder Slip n)
SA0
SA22
Internal test cylinder
~~
~~
~~
~~
• •
•
•
~~
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 and 3.3 show the zone layout and the track capacity.