Symantec 7 manual Bptm process moves the data to the PureDisk plug-in

112Deduplication architecture

Media server deduplication process

Figure 9-2 Deduplication to a media server deduplication pool

Master server

Deduplication storage server

nbjm	bpbrm
	bptm
bpbkar
Client A	PureDisk plug-in
bpbkar	bptm
Client B	Load balancing server

PureDisk	NetBackup
plug-in
	Deduplication
	Engine

Media server deduplication pool

Control path

Data path

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.