A CXRC master session is placed into the coupled HOLD status when XRC determines that the master recoverable time must remain unchanged to preserve the data consistency across all of the interlocked XRC sessions coupled to the master session.
XRC provides this data consistency function to allow manual backup of data for these sessions. The master recoverable time is the consistency time to which these coupled sessions can be recovered. This master recoverable time is protected and will not be changed when the master session is in the coupled HOLD status. XRC also disallows all actions that cause the master recoverable time to change.