What are Off-line backup and Local backup features?
Off-line backup is basically designed for notebook users who are off-line most of the time, and cannot rely on the backup schedule to backup regularly. The backup interval allows notebook users to specify the interval beyond which they would like their data to be backed up immediately. If this interval has elapsed, backup will run automatically once this machine is online. Local backup allows an extra copy of backup file to be kept on local hard disk when backup is running.
