Entries by Apostolis Hatzigeorgiou

Office 365 Backup

As more businesses move to the cloud, adoption of Office365 Exchange Online, Sharepoint Online and OneDrive is surging. At the same, the risk of data loss on Office 365 caused by human errors and hacker intrusion also increases. Backing up the Office 365 data to datacenter or other non-Microsoft cloud is the best way to protect those data from loss.

Incremental vs Differential Backup.

What is the difference between Ahsay’s In-File Delta block level incremental and differential backups? Which one is better? Let us take a look.

Incremental backup backups the delta comparing to the previous backup job, while differential backup backups the delta comparing to the initial backup file (seed). As a result, incremental backup is faster than differential backup.

On the contrary, during file restoration, restoring file backed up through differential method is faster. Because it only requires 2 deltas to complete the restoring job, that is combining the seed file to the delta file which is needed to be restored. On the other hand, ALL deltas are required to restore a file backed up through incremental method.

In conclusion, both backup methods have their advantage and disadvantage. An optimal data protection strategy should includes both backup methods, so that it can achieve maximum backup performance and flexibility during backup and restore.