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Exam NCM-MCI topic 1 question 25 discussion

Actual exam question from Nutanix's NCM-MCI
Question #: 25
Topic #: 1
[All NCM-MCI Questions]

An administrator needs to make sure an RF2 cluster can survive a complete rack failure without negatively effecting workload performance. The current cluster configuration consists of the following:
✑ 30 nodes: distributed 10 nodes per rack across three 42U rack
✑ Each nodes is configured with 40TB usable storage all flash (Cluster Total 1.2 PB Usable)
✑ Current cluster utilization is 900TB storage
Which configuration changes should be made to make sure that the cluster meets the requirements?

  • A. Expanse the cluster by adding 3 additional nodes per rack, 9 nodes total.
  • B. Expanse the cluster by adding 2 additional nodes per rack, 6 nodes total.
  • C. Expanse the cluster by adding 9 nodes to a new 42U rack
  • D. Expanse the cluster by adding 8 nodes to a new 42U rack
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Suggested Answer: A 🗳️
by Josantru at March 8, 2022, 10:33 p.m.

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Chacal001
10 months, 1 week ago
you need 50TB additional per rack (in order to get 450TB per rack), each node has 40TB so you need 2 more per rack, but 1 additional node (per rack) in order to get N+1.
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Josantru
1 year, 1 month ago
What is the reason? 39 nodes?
upvoted 1 times
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