with Tags: shared-area X
The shared area (24 bit) consists of the Supervisor, the Shared Virtual Area (SVA - 24 bit) and Shared Partitions (if allocated). The SVA (24 bit) starts after the Supervisor area and consists of the System Directory List (SDL), Virtual Library Area...
from Blog: Ingolf's z/VSE BlogModified by Ingolf24
Just a few days ago I saw a z/VSE 5.1 system, that did not use the VTAM 31 bit I/O buffer support. This support (available since z/VSE 3.1) allocates VTAM buffers in 31 bit storage, which frees up some 24 bit space, that can be used by your 24 bit (CICS)...
from Blog: Ingolf's z/VSE Blog