Because all current levels of VSAM support CI reclaim (and DBRC does not turn CI reclaim off), the requirement to reorganize RECON data sets to reclaim space is diminished. For instance, when all the records in a CI are erased, the CI is returned to the free CI pool in the CA. Some users reorganize their RECON data sets on a monthly basis. A plan for reorganizing the RECON data sets to reclaim this space on a regular basis must be considered. The RECON data sets can be reorganized while the IMS online systems are active. The RECON data sets can be reorganized easily and quickly with the use of a few DBRC and AMS commands. The AMS REPRO command copies one RECON data set to another, reorganizing it during the process. This command, combined with a DELETE and a DEFINE of the RECON data sets, is enough to complete a reorganization. Additional information to consider when designing the RECON data set reorganization procedures, related to the IMS TM status, are as follows:
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