Preventing DBRC calls for HALDB version verification
Use the PSELNODBRC control statement in the DFSVSMxx member of the IMS PROCLIB data set to prevent the Database Recovery Control facility (DBRC) from being called when partition selection (either with key range selection or with a partition selection exit) finds that a key requested by an application call is not in the range of any partitions.
Calling DBRC in this case can cause performance degradation especially when many similar application calls are made or when many other applications or utilities are using the RECON data set.
- PSELNODBRC
- Specify this keyword if you want to prevent DBRC from being called when partition selection (either with key range selection or with a partition selection exit) finds that a key requested by an application call is not in the range of any partitions.