Which configuration changes should you consider?

You have been working with a customer to size a new Isilon cluster for their environment. You recently determined that a cluster with three X400 nodes with 1TB drives and 48 GB RAM would be a perfect starting point for their workflow, but will have extra capacity. The customer just informed you that they have decided to also use the cluster for a small home directory environment and implement SmartQuotas.

Which configuration changes should you consider?
A . Increase the memory and add SSDs to the configuration.
B . Add an additional X400-Series node to the configuration.
C . Add three NL-Series nodes with 1 TB drives with 48GB RAM, and use SmartPools.
D . Add three S-Series nodes with 300GB drives with 48GB RAM, and use SmartPools.

Answer: A