Skip to main content

STEPS TO TURN ON PHISICAL STANBY TO ACTIVE STANDBY DATABASE



Please follow below steps.

NOTE: Here primary & standby already configuared. The below are the steps we are performing on standby database, to make it active standby database.

-------------------------------------------------------------
1. Connect to the standby database.
-------------------------------------------------------------
2. Stop redo apply using the below script

SQL>recover managed standby database cancel;
---------------------------------------------------------------------------------------------------
3. Issue the following query to find out if the standby database is performing Redo Apply or real-time apply. If the MRP0 or MRP process exists, then the standby database is applying redo

SQL> SELECT PROCESS, STATUS FROM V$MANAGED_STANDBY;

---------------------------------------------------------------------------------------------------

4. Check database tole, open mode using the below script. 

SQL>select name, database_role,open_mode from v$database;

NAME      DATABASE_ROLE        OPEN_MODE
---------     ------------------------------   ------------------
TESTP     PHYSICAL STANDBY      MOUNTED  

---------------------------------------------------------------------------------------------------

5. Now open the database in OPEN READ ONLY mode. Use below SQL

SQL> Alter database open read only;

---------------------------------------------------------------------------------------------------

6. Check database tole, open mode using the below script. 

SQL>select name, database_role,open_mode from v$database;

NAME      DATABASE_ROLE       OPEN_MODE
---------     ------------------------------   ------------------
TESTP    PHYSICAL STANDBY     READ ONLY

---------------------------------------------------------------------------------------------------

7. start redo apply using below SQL on standby database.

SQL>alter database recover managed standby database using current logfile disconnect;

---------------------------------------------------------------------------------------------------

8. Check database tole, open mode using the below script. 

SQL>select name, database_role,open_mode from v$database;

NAME      DATABASE_ROLE       OPEN_MODE
----------    -----------------------------    -----------------------------------
TESTP    PHYSICAL STANDBY     READ ONLY WITH APPLY

---------------------------------------------------------------------------------------------------


NOTE:

--------------------------------------------
Start Redo Apply or Real-Time Apply:
--------------------------------------------

- To start Redo Apply, issue the following statement: - 

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;


- To start real-time apply, issue the following statement: - 

SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE DISCONNECT;


Labels:

Comments

Post a Comment

Popular posts from this blog

Issues and Solutions for Oracle 19c Grid Infrastructure Installation

     Common Issues and Solutions for Oracle 19c Grid Infrastructure Installation •       Check Log Files for Details Oracle installation issues often provide valuable clues in the log files. If the installer seems stuck or fails, check the following logs: ▪ Install log : /u01/app/oraInventory/logs/installActions<date>.log •       ▪ Grid Infrastructure log : $ORACLE_BASE/cfgtoollogs/ •         •       These logs can provide error messages and help identify the exact issue. •         •        Check Permissions and Ownership Verify that the Oracle Grid Infrastructure installation directories have the correct ownership and permissions. •        For example: •        Make sure the grid user has permission to write to the directories where the i...
Post a Comment
Read more

CHANGING DBID FOR ORACLE DATABASE 11G

C:\Users\computer>sqlplus SQL*Plus: Release 11.1.0.7.0 - Production on Thu Sep 10 21:03:33 2013 Copyright (c) 1982, 2008, Oracle.  All rights reserved. Enter user-name: sys as sysdba Enter password: Connected to: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> select dbid from v$database;       DBID ---------- 2188161033 SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options C:\Users\computer>nid DBNEWID: Release 11.1.0.7.0 - Production on Thu Sep 10 21:04:44 2013 Copyright (c) 1982, 2007, Oracle.  All rights reserved. Keyword     Description                    (Default) ---------------------------------------------------- TARGET ...
Post a Comment
Read more

How to Improve Oracle Data Pump Performance - IMPDP

  How to Improve Oracle Data Pump Performance:- Use Parallelism : Set the PARALLEL parameter to at least 2 * number of CPUs . This allows multiple worker processes to perform tasks simultaneously, speeding up both export and import processes. Example: PARALLEL=4 for a system with 2 CPUs. Perform Import Using NETWORK_LINK : Use the NETWORK_LINK parameter to import data directly from the source database. This method is particularly helpful when space is constrained, as it streams the data without needing to generate dump files on the source. It can also reduce time compared to exporting and then importing, as data is streamed directly from the source to the target database. Disable Archivelog Mode (Standalone Databases) : For standalone databases, temporarily disable archive logging during the import process. Import operations can generate a lot of redo logs, slowing down the import. Disabling...
Post a Comment
Read more