7. PARAMETERS › 7.3 Unit-Level Parameters › 7.3.4 IMS Processing Options (IMSOPS) › 7.3.4.3 IMSDUPS Statement

7.3.4.3 IMSDUPS Statement

This parameter is used to control whether duplicate logical
IMS regions can be defined using the IMSALIAS statement (see
below) mapping function.  By default, duplicate logical IMS
region definitions are not permitted.  This is to prevent any
potential corruption that could occur to the CA MICS database
if multiple physical IMS regions were to be mapped to the
same logical IMSID, which is stored in the database.

The IMSDUPS statement has the following format:

IMSDUPS(DISALLOW)

or

IMSDUPS(ALLOW)

Note: If you ever need to intentionally map multiple physical
IMS regions to the same logical IMSID, specify the ALLOW
option to avoid an error condition in IMSPGEN processing.

DEFAULT: DISALLOW