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Recover from primary Admin Node failures

Contributors netapp-perveilerk netapp-pcarriga netapp-lhalbert
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You must complete a specific set of tasks to recover from a primary Admin Node failure. The primary Admin Node hosts the Configuration Management Node (CMN) service for the grid.

Caution You must repair or replace a failed primary Admin Node promptly or the grid might lose its ability to ingest new objects. The exact time period depends on your rate of object ingest: if you need a more accurate assessment of the time frame for your grid, contact technical support.

Follow these high-level steps to recover a primary Admin Node:

  1. Copy audit logs from failed primary Admin Node

  2. Replace the primary Admin Node

  3. Configure the replacement primary Admin Node

  4. Determine if there is a hotfix requirement for the recovered primary Admin Node

  5. Restore the audit log on the recovered primary Admin Node

  6. Restore the Admin Node database when recovering a primary Admin Node

  7. Restore Prometheus metrics when recovering a primary Admin Node