Backup is a copy of data from database that can be used to reconstruct the data after a data crash .Backup and recovery describes the process of creating and storing copies of data that can be used to protect organizations against data loss.
SAP HANA backup and recovery is used to perform HANA system backups and recovery of system in case of any database failure.
. Overview Tab
It tells the status of currently running data backup and last successful data backup.
. Configuration Tab
It tells about the Backup interval settings, file based data backup settings and log based data backup setting.
. Backup Interval Settings
Backint settings give an option to use third party tool for data and log back up with configuration of backing agent.
Configure the connection to a third-party backup tool by specifying a parameter file for the Backint agent.
. File and Log Based Data Backup Settings
File based data backup setting tells the folder where you want to save the data backup on HANA system. You can change your backup folder.
You can also limit the size of data backup files. If system data backup exceeds this set file size, it will split across the multiple files.
Recovery of HANA System
To recover SAP HANA database, the database needs to be shut down. Hence, during recovery, end users or SAP applications cannot access the database.
Recovery of SAP HANA database is required in the following situations −
- A disk in the data area is unusable or disk in the log area is unusable.
- As a consequence of a logical error, the database needs to be reset to its state at a particular point in time.
- You want to create a copy of the database.