Why is it important for a cloud architect to use minimal up-front sizing when planning capacity for nodes in a HCI deployment?
A . Accommodate the workload of a node that has failed or is under maintenance
B . Minimal up-front sizing is correlated to lower licensing costs of the HCI deployment
C . Optimize storage resources by designing only for what is required to run mission critical workloads
D . Reduce CAPEX costs of the HCI deployment by sizing for only the capacity required
Answer: A
Explanation:
Page 207 Manual.
Capacity planning of a node requires minimal upfront sizing to ensure that enough resources are available to accommodate the workload of a failed node or a node, which is under maintenance to avoid performance degradation.
Example: Consider an appliance has a four-node cluster where all the storage is at 70% consumption, and there are no immediate issues. However if a node is down for maintenance, all the resources are evacuated from that node. Then, the utilization will spike to 93%, which causes performance issues throughout the cluster.
Leave a Reply