| IMS System Services provide the following services to both IMS DB and IMS TM: Provide data integrity Restart and recover IMS after failures Provide security, by controlling access to and modification of IMS resources Manage the application programs, by dispatching work, loading application programs, and providing locking services Provide diagnostic and performance information Provide facilities for operating IMS Provide interfaces to other z/OS subsystems that communicate with IMS applications
The IMS System Services are, by: Issuing IMS commands Running IMS-supplied utility programs Running IMS-supplied or user-written exit routines Defining the services you want as part of the system definition process
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