Which minimum cluster configuration, at each site, including software, would meet this customer's environment?

Which minimum cluster configuration, at each site, including software, would meet this customer’s environment?

A hospital is considering using Isilon to store their archived medical images and Genomic Sequencing data. They currently have 56 TB of PACS images and 24 TB of genomic data, and expect to double their capacity requirements this year. They will replicate to a DR cluster, and plan to use N+2 protection. The production workload needs to be run at either site.

Which minimum cluster configuration, at each site, including software, would meet this customer’s environment?
A . Five X400 (2 TB drives) nodes with SyncI
C . Four NL400 (3 TB drives) nodes with SyncI
E . Seven X200 (3 TB drives) nodes with SyncIQ and SnapshotIQ
F . Five X400 (2 TB drives) nodes with SnapshotI

Answer: A