How does it determine if a file has changed for differential and incremental backups?
There are two ways. First, is by using the “Archive Bit”. However, we’ve found that if people are using multiple backup products on the same network, this can cause confusion. So, by default our software uses the other method which is modification date & time. Our software keeps track of when its backups were and uses the date/time stamp to determine what needs to be backed up.
