Symantec NETBACKUP 7 - Manual (Page 20)

For a backup, the NetBackup client software creates the image of backed up files
as for a normal backup. The client sends the backup image to the deduplication
storage server, which deduplicates the data. The deduplication storage server
writes the data to disk.
See “About deduplication servers” on page 21.
The NetBackup Media Server Deduplication Option is integrated into NetBackup.
It uses the NetBackup administration interfaces, commands, and processes for
configuring and executing backups and for configuring and managing the storage.
Deduplication occurs when NetBackup backs up a client to a deduplication storage
destination. You do not have to use the separate PureDisk interfaces to configure
and use deduplication.
The NetBackup Media Server Deduplication Option integrates with NetBackup
application agents that are optimized for the client stream format. Agents include
but are not limited to Microsoft Exchange and Microsoft SharePoint Agents.
Figure 2-1 shows NetBackup media server deduplication. The deduplication storage
server is a media server on which the deduplication core components are enabled.
Planning your deployment
About the NetBackup Media Server Deduplication Option 20