Click on the calculator icon. Your customer is moving from a Restaurant/Bar business model to a
Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node
X200 48 TB Isilon cluster, with 65% utilized for their video surveillance operations. They wish to
achieve the following:
–Upgrade from 1280 x 720 resolution, with a 15 days retention policy, to 2048 x 1536 resolution
with a 30 days retention policy.
What is the minimum number of nodes of the same type will you need to add in order to meet the
required changes and not exceed 70% raw capacity?

A.
6 nodes

B.
10 nodes

C.
14 nodes

D.
18 nodes