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Creating Archived Backups
Get Backup can handle two types of backup archives. Your choice should depend on the physical amount of memory available on the backup storage, on how frequently you create backup archives, on the reliability you expect from your archives, etc. One type may be optimal for some specific case but not the best for others.
To set up a type for the current backup archive, choose Backup > Properties/Schedule menu item and select a type in the Backup Method section.
You can see the difference between the discussed backup types if:
A full backup contains copies of all files and folders listed in the backup project. The size of a full backup archive can be estimated as the total size of the original files. If you enable the compression feature, the archive can be smaller.
You can define whether to store previous versions of the backup, or to keep only the most recent one. To do this, use the Keep previous backups option in the project properties.
To restore files, you should have only the last version of the archive.
An incremental archive contains only files that were changed after the previous backup archive (full or incremental) had been created. The archive size depends on the total size of modified files and can be much smaller than the full archive.
New incremental archives have unique names. The program places new archives into the folder where the previous archives are located.
To restore files, you should have all the previous incremental archives including the full archive.