Ndmp Backups Of Network-Attached Storage (Nas) - VERITAS NetBackup White Paper

Figure 8: Performance improvements using FlashBackup.
NDMP Backups of Network Attached Storage (NAS)
VERITAS NetBackup provides online data backup and restore to a locally attached storage device for network-attached
storage (NAS) hosts using the Network Data Management Protocol (NDMP). Currently supported NAS hosts include Network
Appliance (NetApp), EMC Celerra, and the Auspex NS2000. In a NetBackup NDMP configuration, only control and catalog
information is transferred over the network. This is a critical requirement in NAS host environments where file servers can
store a terabyte or more of online data, which makes network-based backups infeasible or even impossible.
In a typical NetBackup/ NDMP configuration, a NetBackup server sends backup, recovery and robotic control commands via
the NDMP protocol to the NAS file server, which contains locally attached disks, tape drives, and optionally, robotics units.
The NetBackup catalog maintains a complete listing of the backup image. The NAS NDMP host performs the actual NDMP
backup/restore utility that runs on the NAS file server and carries out the NDMP commands from NetBackup. Large robotics
devices can be shared between NAS file servers or between NetBackup master/media servers and NAS file servers.
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