EXPANDED STORAGE MANAGEMENT WITH MVS/ESA Donald R. Deese Expanded storage is offered as a relatively inexpensive way of using high speed processor storage to minimize I/O operations. Under many circumstances, expanded storage achieves this objective. In some situations, the expanded storage algorithms may not yield the expected benefits. In a few situations, expanded storage can cause severe performance problems. This paper describes the concepts and algorithms used to manage expanded storage with MVS/ESA and highlights major changes between MVS/XA and different releases of MVS/ESA.
WARNING: None of the concepts apply with z/architecture since expanded storage does not exist with z/series processors operating in ESAME mode.
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Last updated by Don Deese on 12/04/02.