FUJITSU MAT3147NC/NP - Manual (Page 38)

3-4 C141-E201
The number of spare sectors per cell can be specified from 0 to 240. The default for the spare
sectors number is 240.
Note:
This drive manages alternate spare areas for each cell, which is a set of cylinders. One
cell consists of 29 cylinders.
Figure 3.2 Spare area in cell
An alternate cylinder is used when spare sectors in a cell are used up or 0 is specified as the
number of spare sectors in a cell. 1 cylinder at the end of each zone of the user space is allocated
as alternate cylinders as shown in Figure 3.3.
The user space and the system space share the alternate cylinders.
Zone
Note: The number of alternate cylinders can not be changed.
Figure 3.3 Alternate cylinder
Cell