Hi Team,
Could someone kindly explain the SQL backup process in detail? I'd like to understand what happens during a backup operation.
Your assistance would be greatly appreciated.
Thank you in advance!
Hi Team,
Could someone kindly explain the SQL backup process in detail? I'd like to understand what happens during a backup operation.
Your assistance would be greatly appreciated.
Thank you in advance!
Best answer by Wasim
Hi
The SQL backup process in Commvault involves several key steps to ensure data integrity and recoverability:
1. Pre-Backup Phase: Commvault prepares the SQL database for backup. This includes creating a snapshot of the database using the SQL Server VSS Writer (Volume Shadow Copy Service), which ensures a consistent state of the database at the point of backup.
2. Backup Phase: Data from the SQL database is transferred from the client (where the database resides) to the backup media. This data transfer is managed by the MediaAgent, which handles the movement of data to the designated storage.
3. Post-Backup Phase: After the backup is completed, Commvault updates the backup metadata in the CommServe database. This metadata includes information about the backup job, such as time, size, and status, which is crucial for future restore operations.
4. Verification Phase: Optionally, a verification process can be run to ensure that the backup data is complete and consistent. This step is crucial for validating the integrity of the backup.
5. Cleanup Phase: Any temporary snapshots or logs created during the backup process are cleaned up to free up resources.
https://documentation.commvault.com/2024e/essential/microsoft_sql_server.html
Regards,
Wasim
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