E20-324 Question #156: Real Exam Question with Answer & Explanation

You have been tasked with designing the storage layout for a VNX7600 array. VMware hosts will attach to the array using two HBAs and two Fibre Channel switches. The array will have FAST VP, SnapView, and FAST Cache installed. The customer wants to configure FAST Cache with a capacity of 2000 GB. They also want to put as many drives as possible into a single FAST VP pool while still being able to use SnapView. Snapshots will be taken each day of 10 x 1 TB LUNs and will be used for backups to tape. Once the backups complete, the snapshots will be destroyed. The customer insists on using SnapView due to the backward compatibility with their scripts. The source LUNs will produce less than 20% change daily. The array has the following hard drives installed: -- 31 X 200 GB Flash hard drives -- 34 X 600 GB 15K SAS hard drives -- 17 X 2 TB 7.2K NL-SAS hard drives The entire design should follow EMC best practices. Click on the calculator icon in the upper left corner. How should the three tiers for the FAST VP pool be configured?