Learn about the crucial factor to consider before setting Replication Factor 1 (RF1) in Nutanix clusters. Ensure your NCA exam success with this expert advice.
Table of Contents
Question
What requirement needs to be considered before configuring Replication Factor of 1 (RF1)?
A. Application resiliency
B. Hypervisor
C. RAID configuration
D. Node count
Answer
D. Node count
Explanation
Before configuring Replication Factor 1 (RF1) in a Nutanix cluster, the node count must be carefully considered. RF1 provides no data redundancy, meaning data is stored on only one node without any copies on other nodes. If that single node fails, data loss occurs.
To safely use RF1, the cluster must have a minimum of three nodes. This allows the cluster to maintain data availability if one node goes down, as the remaining two nodes can continue serving I/O requests. However, RF1 is not recommended for production environments due to the lack of data protection.
RF2 or RF3 are preferred for production, ensuring data is replicated across multiple nodes to withstand failures without data loss. The choice between RF2 and RF3 depends on the desired level of data redundancy and the cluster’s node count.
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