How does this data back work

Backup made easy

Backup methods

Backups can be created in different ways. Depending on the method, a data backup needs more or less space. Since the various technical terms appear again and again in software for data backup, we have summarized the most important ones for you.

Full backup

A full backup is a 1: 1 copy of your data. This method is very memory-intensive, since data is always backed up completely and therefore multiple times when executed regularly. Of course, you can simply overwrite an old full backup - however, you only have a backup of the last file status. For example, if you change a Word document and then overwrite the old backup with it, you can only fall back on this latest version, not on different intermediate versions. If you overwrite the backup with a faulty file, it will be irretrievably lost.

Incremental backup

Incremental backup is preferred by many backup programs when several intermediate versions of the files are to be saved. First a full backup is carried out, then all files that are since the last intermediate backup have changed or added. At first glance, this method saves space than a differential backup, but to fully restore your data you need not only the full backup, but also all intermediate backups.

Differential backup

The differential backup works in a similar way to the incremental backup: First a full backup is created. Afterwards, all data that has been changed or added since the last full backup is backed up regularly - for example once a day. The advantage: You only need the first full backup and the last partial backup to restore all data. You can therefore regularly delete the daily intermediate backups to free up storage space - after all, the data they contain is always part of the last backup.