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Figure 9-2

Deduplication to a media server deduplication pool

nbjm

bpbrm

bptm

Deduplication storage server

Master server

Client A

PureDisk

plug-in

NetBackup

Deduplication

Engine

Control path

bpbkar

Media server deduplication pool

Data path

Client B

bpbkar

PureDisk plug-in

Load balancing server

bptm

The following list describes the backup process when a media server deduplicates

the backups and the destination is a media server deduplication pool:

■ The NetBackup Job Manager (nbjm) starts the Backup/Restore Manager (bpbrm)

on a media server.

■ The Backup/Restore Manager starts the bptm process on the media server and

the bpbkar process on the client.

■ The Backup/Archive Manager (bpbkar) generates the backup images and moves

them to the media server bptm process.

This example shows both a deduplication storage server and a load balancing

server. The storage server both deduplicates data and manages the storage.

■ The bptm process moves the data to the PureDisk plug-in.

■ The PureDisk plug-in retrieves a list of fingerprints from the last full backup

for the client from the NetBackup Deduplication Engine. The list is used as a

cache so the plug-in does not have to request each fingerprint from the engine.

■ The PureDisk plug-in performs file fingerprinting calculations.

■ The PureDisk plug-in compares the file fingerprints and the segment

fingerprints against the fingerprint list it its cache.

Deduplication architecture

Media server deduplication process

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Symantec NETBACKUP 7 Bedienungsanleitung Seite 112