Backup Proxy for Direct NFS Access Mode

Veeam Backup & Replication deploys its NFS agent on every backup proxy when you assign the backup proxy role to a Microsoft Windows server (physical or virtual). To instruct the backup proxy to use the Direct NFS access mode, you must choose the Automatic selection or Direct storage access option in the backup proxy settings.

To read and write data in the Direct NFS transport mode, the backup proxy must meet the following requirements:

1. The backup proxy must have access to the NFS datastore.
2. The backup proxy must have ReadOnly/Write permissions and root access to the NFS datastore.

If you have several backup proxies that can process VM data in the Direct NFS transport mode, Veeam Backup & Replication selects the first proxy from the list of available proxies. The priority is given to backup proxies in the local network.

Veeam Backup & Replication checks what NFS datastores are accessible by backup proxies and what permissions backup proxies have on NFS datastores during the host discovery process. The host discovery process rescans Microsoft Windows servers to which the backup proxy role is assigned. The host discovery process is started automatically by schedule, or you can start it manually. The host discovery process is also triggered automatically when you change the transport mode settings and assign the Direct storage access transport mode to the backup proxy.