SET_GDG_LIMIT
The SET_GDG_LIMIT keyword specifies the maximum number of generations that are associated to the GDG.
Syntax
SET_GDG_LIMIT=nnn
Where:
nnn specifies the maximum number of GDSs (1 - 999) assigned to the GDG.
Note: Do not use SET_GDG_LIMIT more than 255 for classic
GDGs. The
expected result might not be achieved in this case.
Usage and processing considerations
- AAM cannot override any GDG attributes when Limit is more than 255 for classic GDGs.
- EXTENDED and LIMIT value cannot be overridden when there is a failure in consistency between those attributes (GLO3195E).
- When GDGLIMITMAX value is more than Set Limit, valid system max limit will be considered. For example, 255 will be considered for LIMIT when GDGLIMITMAX exceeds the value of 255 for classic GDGs. GDGLIMITMAX will be applied for Extended GDG and the value less than 255 for classic GDG.
- When LIMIT value in IDCAMS
DEFINE GDG is more than GDGLIMITMAX, system max limit value will be considered for selection
and expected result might not be achieved in this case.
Example: GDGLIMITMAX=100 and LIMIT=200, GDG_LIMIT=100 will be used instead of 200.
Default
None.
Environments
ALLOCATE
IDCAMS equivalent
DEFINE GDG(LIMIT....)Data class equivalent
None.
Related selection criteria
GDG_LIMIT
Example
In the following example, the number of generations that are assigned to the GDG is 3:
SET_GDG_L=3