Nutanix SE Academy NCSE-Core Question # 8 Topic 1 Discussion
NCSE-Core Exam Topic 1 Question 8 Discussion:
Question #: 8
Topic #: 1
A customer has a 3-node cluster configured for RF2 with 100TB of raw disk space. The customer wants to enable Erasure Coding to gain additional usable space. What change will allow EC-X to be enabled?
The customer has a 3-node cluster configured for RF2 with 100TB of raw disk space.
Erasure Coding Requirements:
Erasure Coding (EC-X) improves storage efficiency by using a parity-based method to store data.
For EC-X to be enabled, a minimum of 4 nodes is required in the cluster.
Explanation:
RF2 (Replication Factor 2): Requires data to be replicated across at least two nodes.
Erasure Coding: Requires additional nodes beyond the replication factor to store parity information. In this case, a minimum of 4 nodes is needed to implement EC-X.
Required Change:
Add 1 Node: Adding one more node to the existing 3-node cluster will meet the minimum requirement of 4 nodes, allowing the customer to enable Erasure Coding.
Outcome:
By adding an additional node, the cluster will be able to utilize Erasure Coding, thereby gaining additional usable space.
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