Today I will show you how to remove DG configuration DGMGRL> show configuration; Configuration Name: DGMANAGER Enabled: YES Protection Mode: MaxAvailability Databases: PROD - Primary database STAND - Physical standby database Fast-Start Failover: DISABLED Current status for "DGMANAGER": SUCCESS DGMGRL> remove configuration; Error: ORA-16627: operation disallowed since no standby databases would remain to support protection mode Failed. I tried to remove database from configuration DGMGRL> remove database "STAND"; Error: ORA-16627: operation disallowed since no standby databases would remain to support protection mode Failed. But result was same. Unsuccess. I changed protection mode to MaxPerformance and then retied again DGMGRL> edit configuration set protection mode as MaxPerformance; Succeeded. DGMGRL> show configuration; Configuration Name: DGMANA...