MFX’s work data set disk space management is automated to a very high degree. It can:
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Automatically correct the underallocation of disk space by obtaining secondary allocations of disk space, as needed. This prevents costly SORT CAPACITY EXCEEDED terminations.
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Automatically release excess disk space at the completion of Phase 1. The space immediately becomes available for allocations to other jobs.
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Dynamically allocate work data sets through the z/OS DYNALLOC capability.
You can improve the efficiency of disk space usage by allocating optimally at the outset.