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High Availability cluster of Locally Managed Quantum Spark Appliances breaks when adding a new cluster interface after the Secondary cluster member is already connected Technical Level
Symptoms
  • High Availability cluster of Locally Managed Quantum Spark Appliances (that run Gaia Embedded OS) breaks when adding a new cluster interface after the Secondary cluster member is already connected to the cluster.

Solution

To add a new cluster interface after the cluster was already configured and is running (no downtime is required):

  1. Make sure the Primary cluster member is Active.

    In WebUI, go to Device > High Availability.

  2. Disconnect the Secondary cluster member from the cluster:

    In WebUI, go to Device > High Availability > Reset cluster settings.

  3. Configure the new interface on both cluster members.

  4. On the Primary cluster member, in the WebUI > High Availability page, configure the new interface settings.

  5. On the Primary cluster member, in the WebUI > High Availability page, click Reinitialize Trust and establish trust with the Secondary cluster member.

  6. Connect the Secondary member to the cluster.

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

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