Troubleshooting steps for when there is issue with HA or Failover problems

Last modified on 15 Apr, 2025. Revision 3
This text is thought to be some general suggestions on what to check if you have issue with HA or Failover problems. This text is not all that might be needed, but should be considered to be part of the general check in this scenario
Status OK

HA/Failover Problems

Change Review

  • Recent changes to:
    • HA configuration
    • Sync interface settings
    • Failover priorities

Diagnostic Actions

  1. Check HA status in WebUI or CLI.
  2. Capture sync interface traffic (UDP 999).
  3. Analyze logs for HA failover or sync anomalies.
  4. Use the dconsole command for in-depth cluster diagnostics.
  5. Manually trigger a failover and observe state transitions.
  6. Confirm that both units have matching firmware and configuration.

Recovery Milestones

  • HA failover occurs smoothly and sync is consistent.
  • Reverting configuration restores stable HA.
  • Root cause identified as hardware-related (e.g., cable/interface).

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