Component failures in the CICS DBCTL environment

This section discusses the impact of failures of different components of a CICS-DBCTL environment and of transaction and thread failures.

CICS failure
If CICS® fails, DBCTL retains locks on database records updated by indoubt UOWs. These records remain unavailable until in-doubts are resolved. CICS records information about the disposition of UOWs on its log.
Database resource adapter (DRA) failure
DBCTL failure
IRLM failure
When the IRLM fails, DBCTL subsystems using it cannot continue normal operations.
Transaction and thread failures
BMP failures
MVS, processor, or power failures

Parent topic: Recovery and restart operations for DBCTL

Related concepts

Overview of CICS and IMS recovery and restart
Commit protocols and units of recovery for DBCTL
IMS database utilities
IMS log utilities

Related information

Recovery and restart operations for DBCTL