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Dynamic over-allocation of work space z/OS DFSORT Application Programming Guide SC23-6878-00 |
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DFSORT can dynamically over-allocate the work space even when you
specify the number of records under the following circumstances:
Dynamic over-allocation of work space can occur when you do not specify the number of records (for example, with small input data sets on tape), or even when you do (for example, when a significant number of records is deleted). In these cases, you might prefer to use JCL allocation of work data sets to control the amount of space allocated. However, there are drawbacks to doing so, as previously explained. If DYNAUTO=IGNWKDD is used, remember to specify run-time option USEWKDD when you want to use JCL allocation of work data sets. |
Copyright IBM Corporation 1990, 2014
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