On Wed, Oct 17, 2012 at 4:51 PM, Mek S <sidi.bouzid.meknessy@xxxxxxxxx>wrote: > Hello, > I wonder if there are any issues in using Oracle 11gR2 restart and DG FSFO > Observer together. Oracle restart is used for automatic restart of > resources (database instance, listeners, etc..) after server reboot for > example, if the Observer failover to the physical standby and open it and > at the same time , oracle restart open the primary then split brain. Any > experience ? > > Hi, Observer will prevent your DataGuard from split brain - before open state database is talking with observer and asking about permission to open. There is anyway other issue with Oracle Restart and DG - see my blog entry - http://oracleprof.blogspot.com/2012/08/dataguard-and-oracle-restart-how-to.html regards, -- Marcin Przepiorowski http://oracleprof.blogspot.com -- //www.freelists.org/webpage/oracle-l