Data Guard

Oracle Data Guard Manual Failover

Published by : Obay Salah , January 5, 2025

1- Minimize data loss (primarydb): If you can mount the primary database, then flush the logs to standbyOn primary: =========== SQL> startup mount... Continue Reading

Data Guard

Oracle Data Guard Manual Switchover

Published by : Obay Salah , January 5, 2025

1- check Primary and standby database role and status.select name, open_mode, db_unique_name, database_role from v$database; 2- Check primary and stan... Continue Reading

Data Guard

Refresh Standby Database using RMAN Incremental SCN Backup

Published by : Obay Salah , December 25, 2024

1. Verify GAP2. Stop Redo Transfer (On Primary)3. Find current SCN from Standby4. Take RMAN Incremental from SCN (Primary)5. Create Standby Control fi... Continue Reading

Data Guard

Creating Physical Standby Using RMAN DUPLICATE FROM ACTIVE DATABASE

Published by : Obay Salah , December 25, 2024

Without shutting down primary, we need to create physical standby database using RMAN DUPLICATE FROM ACTIVE DATABASE command (No need to take backup o... Continue Reading

Data Guard

Convert Physical Standby To Snapshot Standby

Published by : Obay Salah , December 24, 2024

1- Check both primary and standby roleSQL> select name, open_mode, database_role from v$database; SQL> select status, instance_name, databa... Continue Reading

Data Guard

Create Physical Standby Database using RMAN Backup

Published by : Obay Salah , December 24, 2024

1. EnvironmentOn Primary (Step 2 to Step 12)2. Enable Forced Logging on Primary3. Check Password File on Primary4. Configure a Standby Redo Log on Pri... Continue Reading

Data Guard

Create Standby Database From Cold Physical Backup

Published by : Obay Salah , November 19, 2024

At this stage we will create the Physical Standby Database and this task will take about 14 steps:1- Backup the Datafiles in the Primary Database:We n... Continue Reading

Data Guard

Getting Ready To Create Standby Database From Primary Database

Published by : Obay Salah , November 19, 2024

 Before creating the Standby Database, the following steps must be done in the Primary Database:1- Activate Forced Logging:ALTER DATABASE FORCE L... Continue Reading

Data Guard

Create Standby Database Using Offline Full Backup

Published by : Obay Salah , November 19, 2024

 At this stage we will create the Physical Standby Database and this task will take several steps:1- Backup the Datafiles in the Primary Database... Continue Reading

Data Guard

Data Guard Broker Configuration

Published by : Obay Salah , November 19, 2024

 We will use the Data Guard command-line interface (CLI) to create, manage and monitor the Broker Configuration. Here are the steps:1- Run the Da... Continue Reading