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Figure 9-2
Deduplication to a media server deduplication pool
nbjm
bpbrm
bptm
Deduplication storage server
Master server
Client A
PureDisk
plug-in
NetBackup
Deduplication
Engine
Control path
bpbkar
Media server deduplication pool
Data path
Client B
bpbkar
PureDisk plug-in
Load balancing server
bptm
Thefollowing list describesthe backup processwhen amedia server deduplicates
the backups and the destination is a media server deduplication pool:
■ TheNetBackup JobManager(nbjm) startsthe Backup/RestoreManager (bpbrm)
on a media server.
■ The Backup/RestoreManager startsthe bptm process on themedia serverand
the bpbkar process on the client.
■ TheBackup/ArchiveManager (bpbkar)generatesthebackup imagesandmoves
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
cacheso the plug-indoes nothave to requesteach fingerprintfrom 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.
Deduplication architecture
Media server deduplication process
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