Direct NFS Access - User Guide for VMware vSphere
helpcenter.veeam.com › direct_nfs_accessJun 01, 2021 · The Direct NFS access is a recommended transport mode for VMs whose disks are located on NFS datastores. The Direct NFS access mode provides an alternative to the Network mode. When Veeam Backup & Replication processes VM data in the Network mode, it uses VMware VDDK to communicate with the ESXi host. This produces additional load on the ESXi host.