QuestionQ34

Configure Disaster Recovery and Data Protection within a Nutanix Multicloud Environment

An administrator has configured AHV Metro with Witness and needs to document various failover scenarios.

As part of the failover tests, connection losses were simulated between these pairs:

  • The two clusters in the metro pair
  • The primary cluster and Prism Central

However, Prism Central and the recovery cluster remain connected.

Which two system behaviors are expected in this situation?

Choose two
  • A Guest VMs continue to run on the primary cluster.
  • B Guest VMs failover automatically to the recovery cluster.
  • C Guest VM I/O operations pause (freeze) until the connectivity between the primary and recovery clusters or any of the clusters and Prism Central is restored.
  • D Guest VM I/O operations pause (freeze) until the connectivity between the primary and recovery clusters or the primary cluster and Prism Central is restored.
Explanation

AHV Metro with Witness uses the Prism Central witness decision to automate recovery when the recovery cluster remains connected to Prism Central. The recovery cluster therefore automatically fails over the guest VMs. Because the primary cluster has lost connectivity to both the recovery cluster and Prism Central, its guest VM I/O is frozen to prevent split-brain writes; I/O resumes only after connectivity to either the recovery cluster or Prism Central is restored.

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