Fujitsu MAH3091MC - Enterprise 9.1 GB Hard Drive, Maintenance Manual

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C141-E103-01EN 3 - 2
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.)
Cylinder 1
n = MAH3182 series: 17,545
MAH3091 series: 17,686
MAJ3364 series:
14,792
MAJ3182 series: 14,808
MAJ3091 series: 13,261
n–1
n–2
Cylinder 0
Cylinder –59
to
Cylinder –4
User space
System space
Internal test space
Cylinder –70
to
Cylinder –63
•
Primary Cylinder 0
to
Primary Cylinder (n–1)
Spare sector for each cylinder
SA1
SA56
Internal test cylinder
~ ~
~ ~
~ ~
~ ~
• •
• •
~ ~
n
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.