Symantec NETBACKUP 7 - Manual (Page 115)

Figure 9-4 Deduplication client backup to a media server deduplication pool
nbjm
bpbrm
bptm
Proxy
plug-in
Deduplication storage server
Master server
Deduplication client
PureDisk plug-in
NetBackup
Deduplication
Engine
Control path
bpbkar
Proxy server
(nbostpxy)
Media server deduplication pool
Data path
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.
■ The client
nbostpxy
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.
115 Deduplication architecture
Deduplication client backup process