Having a good paging system is as much about bandwidth as it is about capacity, so I'd say the other responders are offering sound advice. Lac k of sufficient capacity will certainly hurt badly when you fill it up and run out (causing a PGT004 abend), but lack of sufficient bandwidth will hurt performance and throughput whenever the system is paging, and if bad enou gh, can lead or contribute to abends of its own (e.g., FRF002).
- Bill Holder, z/VM Development, IBM
