Another reason why you should use the Data Guard Broker for your #Oracle Standby

The Data Guard Broker is recommended for various reasons, this one is less obvious: It prevents a Split-Brain problem that may otherwise occur in certain situations. Let me show you:

[oracle@uhesse ~]$ dgmgrl sys/oracle@prima
DGMGRL for Linux: Version - 64bit Production

Copyright (c) 2000, 2013, Oracle. All rights reserved.

Welcome to DGMGRL, type "help" for information.
Connected as SYSDBA.
DGMGRL> show configuration;

Configuration - myconf

  Protection Mode: MaxAvailability
  prima  (more...)