Nutanix Certified Master – Multicloud Infrastructure (NCM-MCI) — Question 33

An administrator needs to make sure an RF3 cluster can survive a failure of two complete racks without negatively affecting performance. The current cluster configuration consists of the following:
✑ 30 All Flash Nodes: distributed 10 nodes per rack across three 42U racks
✑ Each node is configured with 20TB usable storage all flash (Cluster Total 600TB Usable)
✑ Current cluster utilization is 500TB storage
✑ Storage containers have Erasure Coding enabled
Which configuration changes should be made to make sure the cluster meets the requirements?

Answer options

• A. Expand the cluster to 50 nodes distributed evenly across 5 racks
• B. Expand the cluster to 48 nodes distributed evenly across 6 racks
• C. Expand the cluster to 60 nodes distributed evenly across 6 racks
• D. Expand the cluster to 40 nodes distributed evenly across 5 racks

Correct answer: C

Explanation

Option C is correct because expanding the cluster to 60 nodes across 6 racks provides sufficient redundancy and storage capacity to handle the failure of two racks while ensuring performance is not impacted. The other options do not offer enough nodes or distribution to adequately support the cluster's resilience requirements under the specified conditions.