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Without MAXSORT, overlarge sorts require tape work areas or force you to segment the input and execute multiple disk sorts. With MAXSORT, any input data set can be handled by one sort execution using disk work space.
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MAXSORT requires less disk space than ordinary sorts. Because MAXSORT stores the output of each individual sort on tape, the same disk SORTWK files can be used over and over again.
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Since the output of each individual sort is a completely sorted data set, the original job may be interrupted for higher priority jobs without wasting processing time.
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If a system or program failure occurs, whatever data sets have already been produced are still usable. The job can be restarted at the last breakpoint, and all previously produced data sets can be used without resorting.