RMAN Backup and Recovery Complete Guide for Database Backup and Restoration

YouTube video

Introduction

Welcome to the Mallik034 channel! In this article, we will dive into the world of RMAN backup and recovery scenarios. Whether you are new to RMAN or looking to expand your knowledge, this series of demonstrations will provide you with a comprehensive understanding of how to back up and recover your database using RMAN.

Overview of Scenarios

Before we begin the demonstrations, let’s take a look at the different backup and recovery scenarios we will cover:

  1. Normal backup and recovery scenario.
  2. Restoring the control file in case of correction, deletion, or issues.
  3. Restoring normal data files.
  4. Restoring CSOCS data files.
  5. Restoring system data files.
  6. Restoring undo data files.
  7. Registering redo logs in different states.
  8. Restoring table space.

Connecting to RMAN and Setting Auto Backup

To get started, we need to connect to RMAN. If you are new to the channel, please search for “Mallik034” on YouTube and subscribe for more informative videos. Once connected, it’s important to set the control file auto backup to ensure that it is backed up whenever you perform a backup. To do this, use the following command:

RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON;

Full Database Backup

Now, let’s move on to the demonstration of a full database backup. To take a full backup, use the following command:
RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
This command will default to the Fast Recovery Area (FRA) location for the backup. If you want to specify a different location, you can use the format option. The backup will include both the control file and spfile automatically.

Archive Log Backup

Next, we will perform an archive log backup. To do this, use the following command:
RMAN> BACKUP ARCHIVELOG ALL;
This command will backup all the archive logs generated by the database. It will also backup the control file and spfile.

Incremental Level 0 Backup

Now, let’s move on to the demonstration of an incremental level 0 backup. This type of backup captures all the data files at a specific point in time. To perform the backup, use the following command:
RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE PLUS ARCHIVELOG;
This command will create a backup set for the data files and archive logs. It will also include the control file and spfile.

Incremental Level 1 Backup

Lastly, we will cover the incremental level 1 backup. This backup captures the changes made since the last level 0 backup. To perform the backup, use the following command:
RMAN> BACKUP INCREMENTAL LEVEL 1 DATABASE PLUS ARCHIVELOG;
This command will create a backup set for the data files and archive logs. It will also include the control file and spfile.

Backup Verification

To verify the backups, you can check the backup sets and auto backups in the Fast Recovery Area location. By navigating to the appropriate directories, you can see the backup files and confirm that they were successfully created.

Conclusion

In this article, we have explored the different backup and recovery scenarios that can be performed using RMAN. We have covered full database backup, archive log backup, incremental level 0 backup, and incremental level 1 backup. Remember to always verify your backups to ensure their success. In our next videos, we will delve into the recovery process and simulate various scenarios to demonstrate the power of RMAN. Stay tuned for more informative content!

If you found this article helpful, please subscribe to the Mallik034 channel on YouTube and don’t forget to like, share, and comment. For more informative videos, check out our previous sessions on the channel. Thank you for your support!

Keywords: rman delete archivelog backed up 1 times