Enable and Schedule Maintenance Mode on Redundancy Server

When Working Server is under maintenance (e.g. firmware upgrade or system reboot), it may fail to respond to heartbeat packets from Redundancy Server, which would trigger an unexpected fallback. To avoid this, you can enable and schedule Maintenance Mode on the Redundancy Server to temporarily suspend health monitoring and prevent fallback during the maintenance window.

Requirements

The firmware version of Redundancy Server is 83.19.0.70 or later.

Procedure

  1. Log in to the web portal of Redundancy Server, go to System > High Availability > Disaster Recovery.
  2. Enable and schedule maintenance mode.

    1. Click Maintenance Mode.
    2. In the Maintenance Mode Timeout Time drop-down list, set the timeout.
    3. Click Save.

Result

  • The status displays Maintenance Mode Activated. During the maintenance window, telephony service fallback and data replication are suspended.

  • When the maintenance timeout is reached, the Redundancy Server will automatically exit Maintenance Mode and resume fallback monitoring and data replication.
    Note:
    • If the timeout is set to 0, you must click Exit Maintenance Mode to manually exit when the Working Server is ready.
    • If a specific timeout is set, you can also exit manually in advance.