Nutanix Certified Services – Core v6.8 (NCS-Core) — Question 25

A consultant is working on an expansion project for a customer that has an existing 7-node RF2 cluster. The customer has purchased four more nodes to add to the cluster. All of the hardware is identical between the existing hardware and newly purchased hardware.
Currently, the 7-node cluster has the following utilization:
CPU: 48%
Memory: 66%
Storage: 91%
During the kick-off call, the customer mentioned they’d like to reserve storage capacity on the cluster if a node were to fail in the future.
What’s the safest and best way to implement this on the cluster?

Answer options

• A. Enable Reserve Rebuild Capacity and expand the cluster with the additional nodes.
• B. Expand the cluster with the additional nodes and enable Reserve Rebuild Capacity.
• C. Enable HA reservation and expand the cluster with the additional nodes.
• D. Expand the cluster with the additional nodes and enable HA reservation.

Correct answer: B

Explanation

The correct answer is B because enabling Reserve Rebuild Capacity after expanding the cluster ensures that there is dedicated storage available for rebuilding in case of a node failure. Option A alters the sequence, which doesn't provide the necessary reservations immediately after the expansion. Options C and D discuss HA reservation, which is not the best choice for addressing the customer's specific concern regarding storage capacity.