When configuring Isilon SmartPools policies, which values are allowed for file pool policy storage destinations?

Which type of antivirus scan is unsupported by Isilon OneFS?

An Isilon customer experienced a node failure. The failure requires that the affected node be permanently removed from the cluster. What will occur in the cluster upon failure of the node?

A customer has eight X400 24GB RAM that supports 400 client connections today The customer plans to add
400 more clients in the next few months. They are looking at adding an A-Series node to the cluster to help with client connections.
Before they start adding client connections, what hardware change do you recommend?

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?