A customer wants to integrate a P4500 Multi-Site SAN Solution in their environment. Currently, their infrastructure consists of two EVA systems. The customer has 18TB of Tier-1 and 6TB of Tier-2…

A customer wants to integrate a P4500 Multi-Site SAN Solution in their environment. Currently, their infrastructure consists of two EVA systems. The customer has 18TB of Tier-1 and 6TB of Tier-2 data, which need different performance and availability levels. You design a P4000 Virtual SAN Appliance (VSA) solution on VMware vSphere4 with one DL380 G7 in each datacenter to utilize existing EVA disk space for the Tier-2 data. You recommend an HP D2D Backup System and HP Data Protector for a backup solution. You design a dedicated iSCSI network for the D2D and P4000 solution. Which step must be performed in the customer's backup application to achieve an optimal deduplication ratio and optimal performance?