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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:
■ TheNetBackup JobManager(nbjm) startsthe Backup/RestoreManager (bpbrm)
on a media server.
■ TheBackup /Restore Manager probesthe clientto determineif it isconfigured
and ready for deduplication.
■ If the client is ready, the Backup/Restore Manager starts the following
processes:The OpenStorageproxy server(nbostpxy) onthe client andthe 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.
■ TheBackup/ArchiveManager (bpbkar)generatesthebackup imagesandmoves
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
cacheso the plug-indoes nothave to requesteach fingerprintfrom the engine.
115Deduplication architecture
Deduplication client backup process