How Incremental Backup Works

06 Nov 2010

Incremental backup is an important part of an online backup service. Typically tape backup uses full or differential techniques to backup data.

By using incremental backup the backup software will only send the changed parts of a file to the storage servers. It is this technique that makes online backups so efficient as it reduces the backup time considerably.

Another benefit is that it enables users to have multiple versions of all files. As standard our online backup service enables you to have multiple versions of a file over 30 days - even more if required.

So how does it work exactly?

Monday
The backup software performs a complete backup of the selected files and folders. The backup is then compressed and encrypted and sent to the BackupVault servers. This may take some time to transfer depending on the size of files selected.

Tuesday
The backup software scans the backup selection and sends only new files and the changes of existing files. You would now have a second version of the changed files.

Wednesday
The backup software scans the backup selection and sends only the changed files from Tuesday. You would now have a second and third version of the changed files. New files created are also backed up.

This is repeated each day and after 30 days you would have 30 different versions of changed files. You will also have the ability to restore any one of these files at any one of these backup dates.

For further information or a free trial, contact us or call our sales team on 020 3102 0040.