Set up Disaster Recovery (Yeastar SD-WAN)

If you have connected two Yeastar P-Series Software Editions in different locations using Yeastar SD-WAN, you can set up disaster recovery on the two PBXs to ensure the continuous availability of essential telephony services in the event of a disaster.

Requirements

Both servers in a disaster recovery pair must meet the following requirements.

Item Requirement
Product Model Yeastar P-Series Software Edition
Plan Ultimate Plan
Version Same firmware version and must be 83.12.0.57 or later.
Network
  • LAN port as the default Ethernet interface and a static IP address is required.
  • Accessible to Yeastar SD-WAN node (sdwantunnel.yeastar.com).
External Storage Identical storage device settings and mounting points.

Step 1. Connect two Yeastar P-Series Software Editions using Yeastar SD-WAN

Connect two Yeastar P-Series Software Editions to the same virtual network using Yeastar SD-WAN.

For more information, see Set up SD-WAN Network on Working Server and Join SD-WAN Network on Redundancy Server.

Step 2. Set up disaster recovery on the two Yeastar P-Series Software Editions

  1. Log in to PBX web portal, go to System > High Availability > Disaster Recovery.
  2. Enable disaster recovery and set the remote networking method.

    1. On the top of the page, turn on the Enable Disaster Recovery switch.
    2. In the Remote Networking Method drop-down list, select Yeastar SD-WAN.
  3. Complete the following settings for the disaster recovery pair.
    Working Server
    Setting Description
    Server Mode Select Working Server.
    Note: If you have set up Hot Standby, only the Primary Server can act as Working Server.
    Working Server Host Name

    Enter a name to help you identify the Working Server when receiving event notifications.

    Note: The Working Server Host Name set in the Working Server and Redundancy Server should be the same to avoid confusion in event notifications.
    Redundancy Server Host Name

    Enter a name to help you identify the Redundancy Server when receiving event notifications.

    Note: The Redundancy Server Host Name set in the Working Server and Redundancy Server should be the same to avoid confusion in event notifications.
    Redundancy Server IP Address Automatically synchronize the network IP assigned to the Redundancy Server within the SD-WAN network.
    Redundancy Server
    Setting Description
    Server Information
    Server Mode Select Redundancy Server.
    Working Server Host Name

    Enter a name to help you identify the Working Server when receiving event notifications.

    Note: The Working Server Host Name set in the Working Server and Redundancy Server should be the same to avoid confusion in event notifications.
    Redundancy Server Host Name

    Enter a name to help you identify the Redundancy Server when receiving event notifications.

    Note: The Redundancy Server Host Name set in the Working Server and Redundancy Server should be the same to avoid confusion in event notifications.
    Working Server IP Address

    Automatically synchronize the network IP assigned to the Working Server within the SD-WAN network.
    Advanced
    Heartbeat Interval (s) Define the frequency to send heartbeat packets.

    The default value is 2 seconds, which means that the Redundancy Server sends packets every 2 seconds to detect whether the Working Server is alive or not.
    Dead Time (s) Define the maximum time interval before the Working Server responds to the Redundancy Server.
    The default value is 150 seconds. If the Redundancy Server receives no response after timeout, it will take over the telephony services automatically.
    Note: If you have set up Hot Standby, the value set here MUST be greater than the Dead Time in Hot Standby, with a minimum difference of 30 seconds.
  4. Click Save.

    The system prompts that you need to reboot the PBXs to make disaster recovery take effect.

Result

After rebooting the PBXs, you can check the disaster recovery status on PBX web portal:
  • On Working Server, the status is displayed as Working, indicating that the server is running to provide all PBX functions.

  • On Redundancy Server, the status is displayed as In Redundancy, indicating that the server is in redundancy status. The Redundancy Server will now replicate data from the Working Server.

What to do next

Read Server Redundancy on SIP Trunks and WebRTC Trunks and Server Redundancy on SIP Devices and Linkus UC Clients to learn how server redundancy can be implemented on trunks and extension endpoints.