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How are GDGs concatenated ?

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How are GDGs concatenated ?

Generation Data Groups are concatenated by specifying each dataset name and the generation number for all generations of the generation data group. Otherwise to have all generations of a generation data group, omit the generation number. The DD statement will refer to all generations. The result is the same as if all individual dataset were concatenated. If generations are not on the same volume, this will not work.

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