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Data Backup in Direct NFS Access Mode

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    Data backup in the Direct NFS access transport mode is performed in the following way:

    1. The backup proxy sends a request to the ESX(i) host to locate a VM on the NFS datastore.
    2. The ESX(i) host locates the VM.
    3. The ESX(i) host retrieves metadata about the layout of VM disks on the storage (physical addresses of data blocks).
    4. The ESX(i) host sends metadata to the backup proxy.
    5. The backup proxy uses metadata to copy VM data blocks directly from the NFS datastore over LAN.
    6. The backup proxy processes copied data blocks and sends them to the target over LAN.

    Data Backup in Direct NFS Access Mode