Incremental Backup

Incremental backup is a type of backup strategy that involves copying only the data that has changed since the last backup. Instead of backing up the entire set of files every time, incremental backups save time and storage space by only capturing the modifications made since the last backup operation.

 

Here's how it typically works:

1. Full Backup: The first backup creates a complete copy of all the selected data.

2. Incremental Backups: Subsequent backups only save the data that has changed since the last backup, whether it was added, modified, or deleted. Each incremental backup only captures the changes from the previous backup, not from the original data source.

3. Restore Process: When restoring data, the full backup is usually restored first, followed by applying each incremental backup in chronological order, bringing the data back to its most recent state.

 

This approach is efficient in terms of storage space and time because it minimizes redundancy. However, the restore process can be more complex, requiring the full backup and all subsequent incremental backups to fully restore the data.

 

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