IMS DBCTL capabilities

In an IMS DBCTL environment, you can back up your system by using a second DBCTL subsystem as a standby alternate subsystem, or using XRF.

DBCTL standby
While one DBCTL subsystem is active, you can start another DBCTL subsystem as a standby alternate. This alternate subsystem does not track the active subsystem (as it would in a true XRF complex), but is a fully initialized IMS DBCTL subsystem that is waiting for a restart command (for example, the /ERE command). This alternate subsystem is a preinitialized DBCTL environment.
DBCTL and XRF
An IMS DB/DC XRF subsystem can provide DBCTL service. There are no changes to the XRF functions or to the DBCTL functions in this case.

Parent topic: IMS recovery using Extended Recovery Facility