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Avoiding Loss of Data through Wrapping z/OS MVS Programming: Writing Transaction Programs for APPC/MVS SA23-1397-00 |
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To avoid losing trace data through wrapping, you need to make sure the
primary space allocated for the data set is sufficient to contain all the
trace entries. Determining the amount of primary space required might be a
trial-and-error process, depending on how accurately you can estimate:
An alternative, which might be easier than determining the primary space for DASD, is to use a tape data set for the trace data. With tape, APPC/MVS can write trace entries into a total of five volumes. If you need more space, you can allocate the tape with a volume count, which increases the total to 255 volumes. The disadvantage to this approach is reduced usability: the trace data on tape has to be moved or copied over to DASD before you can view it. |
Copyright IBM Corporation 1990, 2014
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