Switchover and Switch back standby database using DGMGRL - log

----- Switch over ------

[oaracle@orasrv1](DB11@ORADB_1):/u01/app/oracle/product/11.2.0/db_1/dbs\>dgmgrl
DGMGRL for Linux: Version 11.2.0.2.0 - 64bit Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

Welcome to DGMGRL, type "help" for information.
DGMGRL> connect sys
Password:
Connected.
DGMGRL> show configuration

Configuration - itii_itio_ORADB

  Protection Mode: MaxPerformance
  Databases:
    ORADB   - Primary database
    ORADBdr - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS

DGMGRL> switchover to ORADBdr;
Performing switchover NOW, please wait...
New primary database "ORADBdr" is opening...
Operation requires shutdown of instance "ORADB_1" on database "ORADB"
Shutting down instance "ORADB_1"...
ORACLE instance shut down.
Operation requires startup of instance "ORADB_1" on database "ORADB"
Starting instance "ORADB_1"...
Unable to connect to database
ORA-12514: TNS:listener does not currently know of service requested in connect de                                                                           scriptor

Failed.
Warning: You are no longer connected to ORACLE.

Please complete the following steps to finish switchover:
        start up and mount instance "ORADB_1" of database "ORADB"

DGMGRL> DGMGRL>

---- Startup the database ORADB
1. Startup nomount
2. Alter database mount standby database disconnect.

--- Switch back -----

[oracle@orasrv1](DB11@ORADB_1):/u01/app/oracle/product/11.2.0/db_1/dbs\>dgmgrl
DGMGRL for Linux: Version 11.2.0.2.0 - 64bit Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

Welcome to DGMGRL, type "help" for information.
DGMGRL> connect sys
Password:
Connected.
DGMGRL> show configuration

Configuration - itii_itio_ORADB

  Protection Mode: MaxPerformance
  Databases:
    ORADBdr - Primary database
    ORADB   - Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS

DGMGRL> switchover to ORADB;
Performing switchover NOW, please wait...
New primary database "ORADB" is opening...
Operation requires shutdown of instance "ORADBDR_1" on database "ORADBdr"
Shutting down instance "ORADBDR_1"...
ORACLE instance shut down.
Operation requires startup of instance "ORADBDR_1" on database "ORADBdr"
Starting instance "ORADBDR_1"...
Unable to connect to database
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

Failed.
Warning: You are no longer connected to ORACLE.

Please complete the following steps to finish switchover:
        start up and mount instance "ORADBDR_1" of database "ORADBdr"

DGMGRL> exit

---- Startup the database ORADBDR

1. Startup nomount
2. Alter database mount standby database disconnect.