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NetVault Plug-in for NDMP 12.2 - User Guide

Filer-to-filer or three-way backups

Figure 2. Filer-to-filer or three-way backup model

In the filer-to-filer or three-way backup model, the NetVault Backup Server instructs Filer A to perform backups to the tape device attached to Filer B. Filer A transfers the data and backup index information over the network. Filer B transfers the data directly to the device; it transfers the backup index information to the server using NDMP over the network. This model allows sharing of tape libraries among multiple filers.

Remote backups

Figure 3. Remote backup model

In the filer-to-server (filer-to-client) or remote backup model, the NetVault Backup Server instructs the filer to perform backups to tape devices attached to the server. The filer transfers the data and index information to the server using NDMP over the network.

Heterogeneous three-way NDMP backups

Figure 4. Heterogeneous three-way NDMP backup model

The heterogeneous three-way NDMP backup model is similar to the direct-attached model, but in this model the NetVault Backup machines on the network also use the filer-attached tape device for backups and restores.

Filer to NDMP-compliant network-attached tape backups

Figure 5. Filer to NDMP-compliant network-attached tape backups

In this model, the NetVault Backup Server instructs the filer to perform backups to the NDMP-compliant network-attached storage device. The filer uses NDMP over the network to transfer the data to the storage device and backup index information to the NetVault Backup Server. The network-attached storage device can be shared by one or more filers, NetVault Backup Server and any number of NetVault Backup Clients.

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