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Status Future consideration
Workspace z/TPF Product Family
Categories z/TPF
Created by Guest
Created on Feb 25, 2020

RELATED IDEAS

(TPFUG/Visa) Need a ways to see both control and location information for RSH buffers

PJ45598 provided support for recoverable system heap. The support allows for a request for recoverable system heap to be serviced from 64 bit system heap if there isn't enough room in the preallocated RSH area.

ZDSHP FIND displays information about the physical location of the heap, but the other ZDSHP displays for RSH requested areas say the area is in RSH even if some part of it is physically allocated in 64 bit system heap. Since 64 bit system heap will be lost across an IPL, if an RSH requested area was fulfilled in any part by 64 bit system heap it will be lost across an IPL. Knowing whether a large RSH area will be lost across an IPL could influence decisions made about whether or not to IPL if a problem occurs.

If there were a way to see whether any RSH requested area is backed by 64 bit system heap, it would be very easy to know if any RSH areas would be lost across an IPL which would help making decisions about the impact of an IPL during problems.

Idea priority Medium

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