Failover problem

Question

Hi ,
On my test lab i am checking Failover to physical standby using sqlplus on 11202 .
I followed the example from : http://www.visi.com/~mseberg/resources.html
Its seems that i made somthing wrong since BOTH standby and primary currently shows:
SQL> select switchover_status,database_role from v$database;
SWITCHOVER_STATUS              DATABASE_ROLE
TO PRIMARY                     PHYSICAL STANDBYBelow are the steps i took:
Data Guard Failover Test using SQL
====================================
This failover will be to a Physical Standby.FRA is being used.
Things to check before beginning
===================================
1. Check if V$DATABASE for issues :
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS
TO STANDBY2. Obtain the current sequence number on the primary :
SQL> select max(sequence#) from v$archived_log;
MAX(SEQUENCE#)
1163. Create a new user and add some data:
CREATE USER YOAV
  IDENTIFIED BY YOAV
  DEFAULT TABLESPACE USERS
  TEMPORARY TABLESPACE TEMP
  PROFILE DEFAULT
  ACCOUNT UNLOCK;
  GRANT CREATE SESSION TO YOAV;
  GRANT CONNECT TO YOAV;
  GRANT CREATE TABLE TO YOAV;
  create table yoav_test1
  (a number);
  insert into yoav_test1 values(10);
  insert into yoav_test1 values(20);
  insert into yoav_test1 values(30);
  commit;
SQL> select max(A) from yoav_test1;
    MAX(A)
        30
        4. Execute a shutdown immediate on the Primary
SQL> shutdown immediate
--> The following steps executed on the STNDBY
Failover to Physical Standby
============================
SQL> alter database recover managed standby database cancel;
Database altered.
SQL> alter database recover managed standby database finish;
Database altered.
SQL> alter database commit to switchover to primary with session shutdown;
Database altered.
SQL> alter database open;
alter database open
ERROR at line 1:
ORA-01531: a database already open by the instance
---------> This is beacuse it was already opened as read only  <-------------
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 4710043648 bytes
Fixed Size                  2189112 bytes
Variable Size            2499807432 bytes
Database Buffers         2197815296 bytes
Redo Buffers               10231808 bytes
Database mounted.
Database opened.
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS
TO PRIMARY--> I think at this point it should shows : TO STANDBY
For some reason i continue with the steps and execute:
SQL> SELECT TO_CHAR(STANDBY_BECAME_PRIMARY_SCN) FAILOVER_SCN FROM V$DATABASE;
FAILOVER_SCN
3357006--> The following stepes executed on the "old" primary:
/home/oracle:PRIMARY >sqlplus "/ as sysdba"
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 4710043648 bytes
Fixed Size                  2189112 bytes
Variable Size            2550139080 bytes
Database Buffers         2147483648 bytes
Redo Buffers               10231808 bytes
Database mounted.
SQL> FLASHBACK DATABASE TO SCN 3357006;
Flashback complete.
SQL> ALTER DATABASE CONVERT TO PHYSICAL STANDBY;
Database altered.
SQL> SHUTDOWN IMMEDIATE;
ORA-01507: database not mounted
ORACLE instance shut down.
SQL> STARTUP MOUNT
ORACLE instance started.
SQL> alter database recover managed standby database using current logfile disconnect;
Database altered.
SQL> select switchover_status from v$database;
SWITCHOVER_STATUS
TO PRIMARYThanks

Answer 1

Yoav wrote:
Hi ,
Thanks for your help.
-- Originaly was the primary
SQL> select name,db_unique_name,database_role from v$database;
NAME                           DB_UNIQUE_NAME                 DATABASE_ROLE
DGTST                          DGTST                          PHYSICAL STANDBY
-- Originaly was the standby
SQL> select name,db_unique_name,database_role from v$database;
NAME                           DB_UNIQUE_NAME                 DATABASE_ROLE
DGTST                          DRTST                          PHYSICAL STANDBY
Now both are standby. None of the database is Primary
Here which database is Old Primary? is it DGTEST?
When you performing Failover on standby & Converting Primary as standby(manually)
Instead of that why you are not doing Switchover ?
If you want to perform manually & individually.
Then perform Falover from standby to primary as above mentioned commands.
SQL> ALTER DATABASE ACTIVATE STANDBY DATABASE;
or
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH FORCE;
SQL> ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;
SQL> STARTUP MOUNT FORCE;