NCP-MCI-6.10 · Question #65
An administrator has been asked to enable block awareness and increase the fault tolerance to FT2 on a Nutanix AHV cluster with the following configuration: - Four blocks - One node per block Will…
The correct answer is D. No-FT2 requires a minimum of five nodes. Fault Tolerance level 2 (FT2) uses Replication Factor 3 (RF3), meaning three copies of each data block are maintained so the cluster can survive two simultaneous node or block failures. RF3 requires a minimum of 5 nodes to function. The described cluster has only 4 blocks × 1…
Question
An administrator has been asked to enable block awareness and increase the fault tolerance to FT2 on a Nutanix AHV cluster with the following configuration:
- Four blocks
- One node per block
Will the administrator be able to accomplish these tasks?
Options
- ANo-Fault tolerance changes are not supported.
- BYes-FT2 requires a minimum of three nodes.
- CYes-Block awareness requires a minimum of three blocks.
- DNo-FT2 requires a minimum of five nodes.
How the community answered
(34 responses)- A3% (1)
- B3% (1)
- C6% (2)
- D88% (30)
Explanation
Fault Tolerance level 2 (FT2) uses Replication Factor 3 (RF3), meaning three copies of each data block are maintained so the cluster can survive two simultaneous node or block failures. RF3 requires a minimum of 5 nodes to function. The described cluster has only 4 blocks × 1 node per block = 4 total nodes, which is insufficient. Block awareness (requiring a minimum of 3 blocks) could technically be enabled, but FT2 cannot-not because fault tolerance changes are unsupported (A is wrong), and not because 5 nodes is met (B and C are wrong). The hard requirement of 5 nodes for FT2 makes this impossible with the current hardware.
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