what are extents?

Answer Posted / shailendra

extent means not a continious memory allocation.
its means the number of gap between the memory allocation
is possible when data is going to store.
if the extent is full then just run the jcl
with

space=(cyl or blk,(primary,secondary,directory,3),rlse)

it will increase the no extent by 3*16
previously it was 1*16.

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