Switching between primary CARS and standby instance

Hi all

I'm using Oracle 11 g 2.

I'm redoing a switch between the primary data base (RAC 2 knots) and physical standby (single instance)

If my primary is the only forum I've followed the steps below:
On the standby
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT;

On the primary database:
alter database commit to switchover to standby with session shutdown;
shutdown immediate;
startup nomount;
alter database mount standby database;

On the standby again:

alter database commit to switchover to primary WITH SESSION SHUTDOWN;

On the new standby:

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT FROM SESSION;
now, and since my first is CARS when I'm working on switch I get the below error:
SQL> alter database commit to switchover to standby with session shutdown;
alter database commit to switchover to standby with session shutdown
*
ERROR at line 1:
ORA-01105: mount is incompatible with mounts by other instances
In addition, when I want to apply the remaining steps (below step), can I do it on every single instance? or is it all still to do using srvctl command:
 
alter database mount standby database;
Kind regards

Hello

Since you are using 2 primary CCR node, so for the failover operation, you need to stop
instance (instance 2 assuming) database.

Assume your node1:
host name is dcpdb1
and node 2:
host name is dcpdb2

and Eve hostname is drpdb1

Then follow these steps for the digital switchover .

How to transition from primary school on the eve of the database?

Process:

On the principal server, check the log of the last archived redo and force a log switch.

* # Connection as the user Oracle Dcpdb1 # *.

SQL > SELECT sequence #, first_time, next_time
V $ archived_log
ORDER BY next_time;
SQL > ALTER SYSTEM SWITCH LOGFILE;

Check the new archived redo log has arrived on the standby server and is enabled.

* # Connection as the user Oracle Drpdb1 # *.

SQL > SELECT sequence #, first_time next_time, applied
V $ archived_log
ORDER BY next_time;

* # Connection as the user Oracle Dcpdb2 # *.

SQL > SELECT sequence #, first_time, next_time
V $ archived_log
ORDER BY next_time;

SQL > ALTER SYSTEM SWITCH LOGFILE;

Check the new archived redo log has arrived on the standby server and is enabled.

* # Connection as the user Oracle Drpdb1 # *.

SQL > SELECT sequence #, first_time next_time, applied
V $ archived_log
ORDER BY next_time;

* # Connection as the user Oracle Dcpdb1 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
IN THE STANDBY MODE

* # Connection as the user Oracle Dcpdb2 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
IN THE STANDBY MODE

* # Connection as the user Oracle Drpdb1 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
NOT ALLOWED

* # Connection as the user Oracle Dcpdb2 # *.

SQL > shutdown immediate
The database is closed.
The database is dismounted.
ORACLE instance stops.
SQL >

* # Connection as the user Oracle Dcpdb1 # *.

SQL > ALTER DATABASE COMMIT to SWITCH STANDBY mode PHYSICS WITH the STOP of the SESSION;

Database altered.

SQL >
SQL > shutdown immediate
ORA-01507: database not mounted
ORACLE instance stops.
SQL >

SQL > startup mount
ORACLE instance started.
System Global area 1.5400E + 10 bytes
Bytes of size 2184872 fixed
7751076184 variable size bytes
7616856064 of database buffers bytes
Redo buffers 29409280 bytes
Mounted database.
SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
AT THE ELEMENTARY LEVEL

SQL >

* # Connection as the user Oracle Drpdb1 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
ACTIVE SESSIONS

SQL > alter database validation at the transition to the primary with the stop of the session;

Database altered.

SQL > shutdown immediate
ORA-01109: database is not open
The database is dismounted.
ORACLE instance stops.
SQL >
SQL > Startup
ORACLE instance started.
System Global area 1.5400E + 10 bytes
Bytes of size 2184872 fixed
7717521752 variable size bytes
7650410496 of database buffers bytes
Redo buffers 29409280 bytes
Mounted database.
Open database.

* # Connection as the user Oracle Dcpdb1 # *.

SQL > alter database open read-only;

Database altered.

SQL > change recover managed standby database disconnect log file using current;

Database altered.

* # Connection as the user Oracle Dcpdb2 # *.

SQL > startup mount
ORACLE instance started.

System Global area 1.5400E + 10 bytes
Bytes of size 2184872 fixed
7751076184 variable size bytes
7616856064 of database buffers bytes
Redo buffers 29409280 bytes
Mounted database.
SQL > alter database open read-only;

Database altered.

SQL > change recover managed standby database disconnect log file using current;

Database altered.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
NOT ALLOWED

SQL >

* # Connection as the user Oracle Drpdb1 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
IN THE STANDBY MODE

* # Connection as the user Oracle Dcpdb1 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
NOT ALLOWED

SQL >

* # Connection as the user Oracle Dcpdb2 # *.

SQL > SELECT SWITCHOVER_STATUS FROM V$ DATABASE;

SWITCHOVER_STATUS
--------------------
NOT ALLOWED

SQL >

* # Complete passage # *.

Check

* # Connection as the user Oracle Drpdb1 # *.

SQL > alter system switch logfile;

SQL >
SELECT the sequence #, first_time, next_time
V $ archived_log
ORDER BY sequence #.

SQL > archive log list

* # Connection as the user Oracle Dcpdb1 # *.

SQL >
SELECT the sequence #, first_time next_time, applied
V $ archived_log
ORDER BY sequence #.

SQL > archive log list

* # Connection as the user Oracle Dcpdb2 # *.

SQL >
SELECT the sequence #, first_time next_time, applied
V $ archived_log
ORDER BY sequence #.

SQL > archive log list

Thank you
Solaiman

Published by: 876149 on April 12, 2013 11:51

Tags: Database

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