Your Customer Has an Isilon 4-Node X400 Cluster Used for Home

Your customer has an Isilon 4-node X400 cluster used for home directory use, and has since updated to OneFS 7.0. The HR and Legal departments have been very strict about using only dedicated file servers that are part of a single, isolated, untrusted Active Directory domain. Their filer has been out of maintenance, and fears are being raised that, due to the age, it may fail at some point. What could the IT department do, to allow the HR and Legal groups to provide file share services, with minimal impact to their other application permissions?

A) Recommend a 2nd cluster for the HR/Legal department
B) Utilize SmartPools to create two pools to separate the domains
C) Consolidate onto a single cluster and merge the domains
D) Use Access Zones for each domain