There Is a Need to Carry Out a Tech Refresh

Multiple Choice

There is a need to carry out a tech refresh of an Isilon cluster. Old nodes must be removed because of space constrains in the data center. What methodology is least disruptive and will retain the file system structure, configuration, data, and DNS information?

A) Install the new nodes as a new cluster and use SyncIQ to replicate the data to the new nodes
B) Add the new nodes to the cluster and use SmartFail to move the data to the new nodes
C) Install new nodes into the cluster and use SyncIQ to replicate the data from the old to the new nodes  
D) Install the new modes into the cluster and migrate using a host-based utility