The total storage for a CICS® region is reported by the IEF374I message in the "VIRT=nnnK" portion for most address spaces. The equivalent message above the 16MB line is "EXT=nnnK". The sample statistics program, DFH0STAT, produces a report with this information. CICS formatted dumps and some specialized monitors may be useful to determine the sizes of the various components mentioned below. CICS statistics reports contain useful information about the subpools of the dynamic storage areas.
CICS virtual storage requirements can be divided into: