Stacking copies on tape

When you use multiple COPY statements in your SYSIN data set and dynamically allocate copy data sets, you can optionally stack output copies of the same type (LP, LB, RP, or RB) contiguously on the same set of tapes.

Warning

If you are using Tape Mount Management (TMM), be aware that TMM intercepts any data set allocation whether dynamic or otherwise. If you want the copies on tape and use STACK YES with TMM, add the

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program ACPMAIN to the TMM exclusion list. If

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detects that the allocation has gone to disk instead of tape, it discontinues stacking and issues message BMC47357.

When you want to stack copies of more than one type on tape (such as local site primary and local site backup), you must use a different OUTPUT descriptor for each type and stack the copy types on different tape units. For example, the following statements stack local site primary copies of table spaces A.B, C.D, and E.F contiguously on tape unit CARTLP and the corresponding local site backup copies contiguously on tape unit CARTLB:

Stacking copies on tape

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