Niveo Professional NNAS-R4 - Manual (Page 139)

NAS System
User Manual 139
4. Select “System”  “Boot/Shutdown”  “Import Config”.
5. A warning message will be displayed. Make sure the NAS where
configuration will be imported has the same environment as the NAS
configuration that will be restored, such as same number of disk drives,
same NAS firmware version, etc. Click “Yes” to continue.