Home > Storage > PowerVault > Guides > Dell PowerVault ME5 Series: VMware vSphere Best Practices > Host groups
For ease of management with PowerVault ME5 arrays, group initiators that represent a server into an object called a host. You can also organize multiple host objects into an object called a host group. Doing so enables mapping operations for all initiators and hosts in a group to be performed in one step, rather than mapping each initiator or host individually. A maximum of 32 host groups can exist.