z/OS DFSMSdss Storage Administration
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Record counting

z/OS DFSMSdss Storage Administration
SC23-6868-01

DFSMSdss provides a means for verifying results of certain operations:
  • Sequential extended-data sets—DFSMSdss performs and reports byte counting for logical data set COPY, DUMP, and RESTORE operations. The byte counts are reported in message ADR902I for copy, ADR903I for dump, and ADR906I for restore.
  • Indexed VSAM data sets—DFSMSdss performs and reports record counting for logical data set DUMP and RESTORE operations if the VALIDATE support is used during the dump processing. VALIDATE processing is the default for dump.

    During dump processing, the record count is reported in message ADR788I. In restore processing, message ADR788I is issued if the restore record count matches the dump count. Message ADR789W is issued if the dump and restore record counts differ and both the dump and restore record counts are provided.

Related reading: For more information about these messages, see z/OS MVS System Messages, Vol 1 (ABA-AOM).

Parent topic: Understanding the role of DFSMSdss

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