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Nutanix

NCA-5.15 · Question #51

Which Nutanix component can be placed into a third site, in order to assist the primary and secondary sites during a failure event?

The correct answer is B. Witness VM. In a Nutanix Metro Availability (stretched cluster) deployment, the Witness VM is deployed at a third, independent site separate from the primary and secondary sites. Its role is to act as a tiebreaker in the event of a network partition or failure between the two primary sites.

Data Protection

Question

Which Nutanix component can be placed into a third site, in order to assist the primary and secondary sites during a failure event?

Options

  • ABackup Server
  • BWitness VM
  • CPrism Central
  • DController VM

How the community answered

(23 responses)
  • B
    87% (20)
  • C
    9% (2)
  • D
    4% (1)

Explanation

In a Nutanix Metro Availability (stretched cluster) deployment, the Witness VM is deployed at a third, independent site separate from the primary and secondary sites. Its role is to act as a tiebreaker in the event of a network partition or failure between the two primary sites. If the two sites lose communication with each other, the Witness VM casts the deciding vote to determine which site remains active, preventing a split-brain scenario where both sites attempt to take ownership of the data simultaneously. A Backup Server, Prism Central, or Controller VM do not serve this arbitration role.

Topics

#Witness VM#Stretched Cluster#Disaster Recovery#Quorum

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