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■ 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:
■ 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.
Deduplication architecture
Deduplication client backup process
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