Function shipping allows you to access IMS/ESA® DM or IMS/VS DB databases associated with a remote CICS OS/390 system, or DL/I DOS/VS databases associated with a remote CICS/VSE system. (See Introduction to CICS intercommunication for a list of systems with which CICS® Transaction Server for z/OS®, Version 3 Release 1 can communicate.)
Definitions of remote DL/I databases are provided by the system programmer. There is no facility for selecting specific systems in CICS application programs.
Only a subset of DL/I requests can be function shipped to a remote CICS system. For guidance about restrictions, see the CICS IMS™ Database Control Guide.