IDCAMS allocates in CI increments; it does not use the capacity of a whole track. Therefore, more accurate space conversion is possible if CI capacity is used instead of byte capacity. The following table shows cylinder and track factors:
|
Restore Clusters Conversion |
TRK= |
CYL= |
|---|---|---|
|
3330 to 3350 |
0.75 |
0.475 |
|
3350 to 3330 |
1.33 |
2.1 |
|
3380 to 3390 |
0.83 |
0.83 |
|
3390 to 3380 |
1.2 |
1.2 |
Usage Rules
The following usage rules apply to the CYL TRK parameter:
Example
In the following example, the space factors are converted from a 3380 to a 3390:
RESTORE CYL=.83 TRK=.83 CLUSTER CL=+
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