Control file: CIUCNTL
Maximum record length is 898 bytes. Number of records is the number of CICS® regions in the shared environment and the number of Command Flow user records. Call this number NUM_REGION_V and NUM_CMDF_USERS respectively.
Size = (( 898 * NUM_REGION_V) +
( 560 * NUM_CMDF_USERS) + 32)