Fujitsu MAS3367FC, Product/Maintenance Manual

Page: 38 / 114

Data Format
3-2 C141-E198
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.)
n = 27,093 (MAS3735FC)
27,149 (MAS3367FC)
Zone Cell Cylinder
Cylinder –88
to
Cylinder –4
System space
Internal test space
Cylinder –99
to
Cylinder –92
•
SA0
SA84
Internal test cylinder
~ ~
~ ~
~ ~
~ ~
Spare Sectors per Cell 0
0
0 1
•
27
User Space for Cell 0-0
Spare Sectors per Cell 1
28
1 29
•
0 55
•
User Space for Cell 1-0
m-27
P1
•
m
User Space for Cell P1-0
Spare Sectors per Cell P1
Alternate Cylinder
User Space for Cell xx-1
User Space for Cell yy-17
User Space
(Primary Cylinder
0 - (n-1))
(1)
1
17 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.