An Isilon cluster with three S210 nodes and three NL400 nodes was expanded to 18 nodes
(15 x S210, 3 x NL400). You have been asked to revise the data protection policy initially
set to N+3d:1n while optimizing the available writable disk space. What is the recommended
data protection strategy for each pool and will the data protection overhead average
increase or decrease?

A.
S210 node pool changes to N+2d:1n NL400 node pool changes to N+2d:1n

B.
S210 node pool changes to N+2n NL400 node pool remains N+3d:1n

C.
S210 node pool remains N+3d:1n NL400 node pool changes to N+2d:1n

D.
S210 node pool remains N+3d:1n NL400 node pool changes to N+2n