Prior to V2R3 the specification of the 1M LFAREA resulted in storage being physically reserved for LFAREA frames (used to back IARV64 PAGEFRAMESIZE=1Meg requests), but which could potentially be used for other purposes. If the system ran low on memory, the 1M LFAREA could be used to satisfy non-LFAREA real storage requests. So even though the 1M LFAREA was a reservation, the reservation could be broken and so it might have behaved more like a limit.
In V2R3 and above, the real storage management is more effective at reducing fragmentation, resulting in more available 1Meg units of real. The need for the 1M LFAREA (as a reservation) went away. Harris Morgenstern z/OS Storage Management and System REXX Dept. OBPA IBM Poughkeepsie 8-295-4221 [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
