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For more information about DFSDCxxx and DFSPBxxx settings, see IMS Version 12 System
Definition, GC19-3021.
Figure 4-2 AOS and RRS combinations at a glance
IMS log records indication
The XCF indicator is set in Log Record 01. When LUY_FLAGS=x'40' at offset x'B4',
LUY_XCF_INDICATOR is set on and a system with AOS=X, B, or S has enqueued this message.
4.1.2 Setup and migration considerations
If you have the APPC and OTMA synchronous shared queue function already activated using
an IMS version other than IMS 12, keep in mind the considerations we discuss in the following
sections when you plan a migration ...