Home > Storage > PowerVault > Guides > Dell PowerVault ME4 Series and Linux > SAN-attached storage
Given the limited host ports available on a ME4 Storage System, attaching the storage system and hosts to a SAN allows more hosts to connect to a single ME4 Series system concurrently. Although this can significantly improve the usage efficiency of the storage system, administrators should carefully balance the total workload driven by all connected hosts and the resource availability on the storage system.