How To Setup: Hot Backup Copy on version 10.x


Hot Backup Copy (Replication) on version 10.0.0



Prepare Target for Hot Backup Copy capabilities.

These steps will setup and start the OpenVPN server function. Log into the Target Unitrends Appliance (this is the computer receiving the copies of the data:

  1. You must ensure the ports and needs listed in KB 4407594465297 have been met including ICMP. This is temporary and only for the setup process. Once the Hot Backup Copy is successful, you only need UDP port 1194 bidirectional.
  2. Click CONFIGURE.

  3. Click the Appliances (tab) and select the Unitrends Appliance.

  4. Click Edit.

  5. ​Click on the Backup Copy tab.
  6. Click on the Enable this appliance as a Backup Copy Target. Do not save this yet.

    • Perform this step on all Source appliances and the Target appliance:
      To find out what IP address are currently used by your Unitrends Appliance, connect to the Unitrends appliance using SSH (PuTTY). Once authenticated execute this command:
      Take note of IP Addresses for each network interfaces listed. (including docker0 and any current tun#).
    • Perform this step on the Target appliance only:
      In the Enable this appliance as a Backup Copy Target section, change the Secure Network value from to a value that is not used in any of the network interfaces or local networks where the Unitrends Source Appliances or Target appliance is located. (e.g.: Use a Private IP Address range to maximize security.
      NOTE: The Secure Network IP always ends in a zero. The Secure Network subnet of is sufficient.
  • Click Save


Temporarily disable the built in Firewall of the Source and Target:

  1. Please use an SSH terminal client (e.g. PuTTY) to connect to the Console of the Source and Target Unitrends system.
  2. Once connected, authenticate as the user root and then execute this command to stop the internal firewall:
    CentOS 6:    service iptables stop
    CentOS 7:    systemctl stop firewalld
  3. If this is the first time you are setting it up, please configure your network and security to ALLOW complete communication between the Source and the Target Unitrends system. Once it has been set up correctly, please reduce the ALLOW rule to only port 1194 UDP. You can now complete the setup on the Source DPU.


Configure the Source to communicate with the Target

These steps will setup and start the OpenVPN server function:

  1. Click CONFIGURE.
  2. Click the Appliances (tab) and select the Unitrends Appliance for Target.
  3. Click on the Backup Copy Targets (tab at the bottom).
  4. Click Add Target
  5. Click on Unitrends > Unitrends appliance
  6. Enter the Host Name, IP Address of the Target and click Save. Username and Password are not required.
  7. If you receive a dialogue box with the exact error of 'Connection Could Not Be Verified' it can be ignored by clicking on click Continue. For other errors, review the logs in your Firewall at the Source and Target location. This includes Layer 7 and Web Filter logs.
  8. Once completed, you will receive an Information dialogue box. Please read it and click OK.
  9. The Source appliance is now in a PENDING status with the Target.

Approve the Source for Replication:

These steps will approve and finalize the setup:

  1. Log into the Web /ui/
  2. Click CONFIGURE.
  3. Click the Appliances (tab)
  4. You will see that Source DPU listed, with a Status of . Click the Pending button.
  5. Click on Allow Backup Copies to be sent from...
  6. Click on the arrow for Select target storage to use and choose the Storage Device that backup copy data will reside (Internal is default).
  7. Click Save, then click OK after reading the Information box:  Backup Copies from this appliance have been approved.

Once you have verified that the Replication and/or Management has been established, you can restart the iptables by executing this command:    service iptables start

 Next, set up a hot copy job following Hot to create a simple hot copy job (to the cloud).


Have more questions?

Contact us

Was this article helpful?
0 out of 0 found this helpful

Provide feedback for the Documentation team!

Browse this section