Switchover_Status = Sessions Active

Question

Hi All,
I have configure the Physical standby database and now i want to test the
Switch over , but when i check SWITCHOVER_STATUS colunm of V$database view it is showing me sessions active. How cany i get the value "To Standby" for this column to start the switch over process.
On Primary,
SQL> conn sys@prod as sysdba
Enter password:
Connected.
SQL> select SWITCHOVER_STATUS from v$database ;
SWITCHOVER_STATUS
SESSIONS ACTIVE
SQL> select SID,SERIAL#,USERNAME from v$SESSION;
       SID    SERIAL# USERNAME
         1          1
         2          1
         3          1
         4          1
         5          1
         6          1
         7          1
         8          1
         9          1
        10          1
        11         44 SYS
       SID    SERIAL# USERNAME
        12         66 SYS
12 rows selected.On Standby
SQL> conn sys@stdby as sysdba
Enter password:
Connected.
SQL> select SWITCHOVER_STATUS,OPEN_MODE from v$database ;
SWITCHOVER_STATUS  OPEN_MODE
SESSIONS ACTIVE    MOUNTED
SQL> select SID,SERIAL#,USERNAME from v$SESSION;
       SID    SERIAL# USERNAME
         1          1
         2          1
         3          1
         4          1
         5          1
         6          1
         7          1
         8          1
         9          1
        10          1
        11          5 SYS
       SID    SERIAL# USERNAME
        14          1
12 rows selected.
SQL>can you please tell me, where am i wrong and why i am getting "sessions active" and why "To standby" it not there?
Thanks for your help.
Akshay

Answer 1

In order to perform a switchover all sessions to the database need to be
disconnected. In version 901 this was a manual process. In version 9.2.0
this process has been automated with the “with session shutdown” clause
that has been added to the alter database commit to switchover command.
If SWITCHOVER_STATUS returns SESSIONS ACTIVE then you should either
disconnect all sessions manually or when performing step 2 you should append
the “with session shutdown” clause. For example:
SQL> alter database commit to switchover to standby with session shutdown;
Read manuls before you do and also metalink note 232240.1
Jaffar