Symantec 7 manual Separates the file’s metadata from the file’s content

110Deduplication architecture Deduplication server components

Figure 9-1 Storage server deduplication components

PureDisk plug-in

NetBackup

Deduplication

Engine

NetBackup

Deduplication

Manager

Catalog plug- in

Storage path

Database application

Database path

Data path

Catalog metadata path Control flow

Table 9-1describes the components.

Table 9-1	NetBackup deduplication components
Component	Description
PureDisk plug-in	The PureDisk plug-in is the data interface to the NetBackup
	Deduplication Engine on the storage server. The PureDisk plug-in
	does the following:
	■ Separates the file’s metadata from the file’s content.
	■ Deduplicates the content (separates files into segments ).
	■ Controls the data stream from NetBackup to the NetBackup
	Deduplication Engine and vice versa.
	The plug-in runs on the deduplication storage server. The plug-in
	also runs on load balancing servers and on the clients that
	deduplicate their own data.
NetBackup	The NetBackup Deduplication Engine is one of the storage server

Deduplication Engine core components. It stores and manages deduplicated file data.

The binary file name is spoold, which is short for storage pool daemon; do not confuse it with a print spooler daemon. The spoold process appears as the NetBackup Deduplication Engine in the NetBackup Administration Console.