Symantec NETBACKUP 7 - Manual (Page 116)

■ The PureDisk plug-in performs file fingerprinting calculations.
■ The PureDisk plug-in sends only unique data segments to the storage server,
which writes the data to the media server deduplication pool.
Figure 9-5 shows the backup process of a client that deduplicates its own data.
The destination is a PureDisk storage pool. A description follows.
Figure 9-5 Deduplication client backup to a PureDisk storage pool
nbjm
bpbrm
bptm
Proxy
plug-in
Media server
Master server
Deduplication client
PureDisk plug-in
Control path
Data path
bpbkar
Proxy server
(nbostpxy)
PureDisk storage pool
The following list describes the backup process for a deduplication client to a
media server deduplication pool:
■ The NetBackup Job Manager ( nbjm ) starts the Backup/Restore Manager ( bpbrm )
on a media server.
■ The Backup / Restore Manager probes the client to determine if it is configured
and ready for deduplication.
■ If the client is ready, the Backup/Restore Manager starts the following
processes: The OpenStorage proxy server (
nbostpxy ) on the client and the data
moving processes (
bpbkar
on the client and
bptm
on the media server).
NetBackup uses the proxy plug-in on the media server to route control
information from
bptm
to
nbostpxy
.
■ The Backup/Archive Manager ( bpbkar ) generates the backup images and moves
them to the client nbostpxy process by shared memory.
Deduplication architecture
Deduplication client backup process 116