Home > Storage > PowerStore > Virtualization and Cloud > Dell PowerStore: VMware vSphere Best Practices > Guest vSCSI adapter selection
When creating a new virtual machine, vSphere automatically suggests the disk controller option based on the operating system selected (see the following figure). The Dell Technologies Host Connectivity Guide recommends using the VMware Paravirtual SCSI controller for optimal performance. You can find more information about the Paravirtual adapter, including its benefits and limitations, in VMware documentation.