Subsystem requirements
Subzero supports the following types of subsystem access:
- Application programs that run under CICS and issue calls for access to DB2 databases
- Application programs that run under CICS and issue calls for access to IMS databases
- Application programs that run under CICS and issue calls for access to MQ messages
- IMS subsystems that issue calls to a DB2 subsystem
- Application programs that use the instrumentation facility interface (IFI) to issue commands to DB2 subsystems
- A queue-sharing group (QSG) for IBM MQ that caches and accesses shared object definitions on a DB2 subsystem
An application can use multiple types of subsystem access routines.
The following topics describe requirements for the subsystems that Subzero supports:
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