Reorganizing the RECON data sets

You need to reorganize the RECON data sets periodically. Many of the record keys in the RECON data set include the date and time. DBRC recording of IMS log and database activity can cause CI and CA splits, that can degrade performance.

In addition, deleting unnecessary records might not prevent the RECON data set from filling up because VSAM does not always reuse the space freed.