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24Planning your deployment
About NetBackup Client Deduplication
the installation fails. To upgrade a NetBackup media server that hosts a PDDO agent, you must first remove the PDDO agent.
See the NetBackup PureDisk Deduplication Option (PDDO) Guide.
Deduplication within each media server deduplication node is supported; global deduplication between nodes is not supported.
About NetBackup Client Deduplication
With normal deduplication, the client sends the full backup data stream to the media server. The deduplication engine on the media server processes the stream, saving only the unique segments.
With NetBackup Client Deduplication, the client hosts the PureDisk
Client deduplication does the following:
■Reduces network traffic. The client sends only unique file segments to the storage server. Duplicate data is not sent over the network.
■Distributes some deduplication processing load from the storage server to clients. (NetBackup does not balance load between clients; each client deduplicates its own data.)