Netgear RN31664E – ReadyNAS 316 6-Bay, 6x4TB Enterprise Drive ソフトウェアガイド

A backup is a copy of data that you use if your primary copy is deleted or damaged. The process of storing
primary data on a second device is called backing up.

A backup source is the place where you store the primary copy of the data that you want to back up.

A backup destination is the place where you store the backed-up data.

If you store primary copies of your data on your ReadyNAS system, you can create a backup job to back
up your data to a secondary device on the same network.

Figure 12. Backing up data from a ReadyNAS system to a secondary device (USB drive)

If you store primary copies of your data on your computer or other device, you can create a backup job to
back up your data to a ReadyNAS system that is on the same network.

Figure 13. Backing up data from a computer to a ReadyNAS system

A full backup makes a copy of all the data stored on the primary system. Your first backup of a primary
system is always a full backup job. The amount of time a full backup takes depends on the amount of stored
data.

An incremental backup copies only the data that changed since your last backup process. An incremental
backup job takes much less time than a full backup job.

RAID configuration of disks is not a substitute for backing up data. RAID configuration
protects you from data loss only if a disk fails. For more information about the protection
that RAID configuration offers, see 

 on page 22.