hi 

I have Unity 400 with 18x1.2 10K in a Pool with Raid5 and 2x400GB SSD Fast Cache

This Storge connected to 6ESXi host with 2port per SP via EMC Brocade SAN Switch

and Create 3 LUN on pool .

I have Very low Bandwidth and Have Latency (100-400ms) and Veeam Backup Speed Maximum 30MBps when Backup VM on Host and maximum IOPS reach 1500