Storage Sizing Issue of VDI System

VDI system is a complicated one which has many components such as hosts, centralized storage and network and demands PC-class performance at the same time. Centralized management of all resources complicates the VDI system even more, and especially storage is considered as the critical bottleneck point. Therefore we focused on storage sizing issue of VDI system with IOzone and IOmark which measure system performance in terms of IOPS and response time. IOmark is widely used to measure storage performance in VDI environment in the absence of standardized tools, which measures response time with workload specified to VDI system. The results showed that conventional calculation method of storage size couldn't meet the performance well. We analyzed causes of it and suggested various methods to overcome the low performance.