Oracle Error Message
ORA-16671: instance-specific property must be set uniquely for instances of an Oracle RAC database
Reason for the Error
An attempt was made to set an instance-specific property to the same value for all instances of an Oracle RAC database for a property whose value must be unique for each instance.
Solution
Use the EDIT INSTANCE command and specify the SID of each instance whose instance-specific property value is to be changed.