How does this data back work
Backup made easy
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.
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 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.
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.
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