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Synchronizing a NAS RoundTrip with a Datto Device



This article describes the procedure to synchronize a NAS RoundTrip drive with a Datto device. For background on the RoundTrip process, see the article RoundTrip Overview.

For details on synchronizing a USB RoundTrip with a Datto device, click here.


Connect the power for the RoundTrip drive.

Connect the drive to the network:

    • If you are connecting the RoundTrip NAS to your LAN, use the port on the NAS marked LAN. On this port, the NAS will attempt to obtain a DHCP address.
    • If you are connecting the RoundTrip NAS directly to the Datto device, use the port on the NAS marked NIC-to-NIC, and connect it to the auxiliary NIC port marked eth1 on your Datto appliance.
If you have NIC bonding enabled on your Datto appliance, and there are no free ports available to create a NIC-to-NIC configuration, you can temporarily disable the bond, disconnect one of the bonded Ethernet cables, and connect the RoundTrip NAS.
    • The port on the NAS marked NIC-to-NIC communicates over a static IP address with your Datto appliance.
  • Datto recommends plugging into both the LAN and the Datto appliance, if possible. You will select which one to use later in this process.
If there is no DHCP server available on the local network, use the NIC-to-NIC connection to the Datto device.


Highlighted: NIC interfaces on a RoundTrip NAS


Log in to the Datto device's web interface. Then, click on the Synchronize tab.

At the top of the page, click Start NAS RoundTrip, as shown in Figure 1.

Figure 1 - Start NAS RoundTrip button

Once the process has started, you will see a welcome screen, as shown in Figure 2. Click Next.

Figure 2 - RoundTrip NAS wizard welcome screen

All local and offsite backups will be paused until the NAS RoundTrip has been completed. This is to make sure that no snapshots are deleted while in transit to the RoundTrip. At the end of a backup operation with any Datto Device, it enforces the Retention settings that are set in the Remote Web interface.

The next screen, shown in Figure 3, will display the the available interfaces to sync the NAS RoundTrip. Here, you will see if the NAS has network connectivity or not. Once selected, click Next.

Figure 3 - Select NIC

If eth0 (LAN) is used as the interface, the data transfer will happen across the network. This can sometimes cause an increase in Network Latency. If this is a problem on your network, we recommend that you use the NIC-to-NIC method instead.

If you use the NIC-to-NIC method, you must use the port marked eth1 on both the Datto appliance and the RoundTrip drive.

Next, you will see all the NAS RoundTrip devices on the same network, as shown in Figure 4. Select the NAS RoundTrip, and click Next.

Figure 4 - Select NAS

You will see the agents and NAS shares on the Datto device, as shown in Figure 5. Select the agents and shares that you wish to synchronize to the NAS RoundTrip. Max Space Needed shows the amount of space that each agent or share will use.

Figure 5 - Select Agents

Once you've selected the agents and shares, you will see a final reminder, as well as confirmation that the NAS RoundTrip process is ready to begin. See Figure 6.

Figure 6 - Confirmation screen

Enter an email address where you will be notified about the status of the RoundTrip synchronization. We recommend that you enter multiple addresses, to make sure that many people get notified in case one person is unreachable. Separate multiple email addresses with commas and no spaces. Then, click Start RoundTrip.

The page will refresh and a progress bar and a status will populate with updated information, as shown in Figure 7.

Figure 7 - RoundTrip Synchronization status

Note: The initial process may take a few minutes.

As the process continues, you will see more details, as shown in Figure 8.

Figure 8 - Detailed synchronization status

Once the synchronization is complete, you will see a confirmation that the latest NAS RoundTrip was successfully completed. Local backups and offsite synchronization will automatically resume after the NAS RoundTrip has completed.

Immediately return the NAS RoundTrip to Datto to synchronize it with the Cloud. You can find the return shipping label in the box that the RoundTrip drive came in, as shown in Figure 9. The PO # field will match the serial number of the Datto appliance that the RoundTrip was ordered for. If the label has been misplaced, check the RoundTrip policy (USA) or RoundTrip Policy (EMEA) for the shipping address.

Figure 9 - RoundTrip Return Shipping Label

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