An incremental backup stores all files that have changed since the last full, differential or incremental backup. The advantage of an incremental backup is that it takes the least time to complete. However, during a restore operation, each incremental backup is processed, which could result in a lengthy restore job.
Incremental
Automatically make full backup
Make full backup when all increments exceed % of full backup size
In time, the size of the incremental can outgrow the full version. For maximum efficiency, the size of the incremental should be kept as small as possible. This option will trigger the creation of a full backup when a certain percentage of the full backup will be exceeded (default is 50%).
Make full backup when all increments exceed
If this is checked, Backup4all will trigger the creation of a full backup when that custom size is reached (default is 100 MB).