ORA-16928
FastStartFailoverLagLimit value must be greater than FastStartFailoverLagGraceTime value.
Cause
The value specified for the FastStartFailoverLagLimit configuration property is less than, or equal to the value of the FastStartFailoverLagGraceTime configuration property.
Action
Specify a value for the FastStartFailoverLagLimit configuration property that is greater than the value of the FastStartFailoverLagGraceTime configuration property.