When to reorganize production VSAM files
How can Listcat Plus be used to help determine when production VSAM files need to be reorganized in order to operate at their optimum performance and avoid space problems?
Listcat Plus lists VSAM files in a concise one file per line report that makes it easy to see all of the most important statistics relating to the need for reorganizations. Files are flagged based upon your defined thresholds. Some of the more important fields and calculations shown include primary and secondary allocations, number of extents, CI and CA splits and freespace, percent full, and number of unused tracks.