Symantec NETBACKUP 7 - Manual (Page 110)

Figure 9-1 Storage server deduplication components
PureDisk
plug-in
NetBackup
Deduplication
Engine
Catalog metadata path Data path
NetBackup
Deduplication
Manager
Catalog plug-
in
Database
application
Control flow
Storage path
Database path
Table 9-1 describes the components.
Table 9-1 NetBackup deduplication components
Description Component
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.
PureDisk plug-in
The NetBackup Deduplication Engine is one of the storage server
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.
NetBackup
Deduplication Engine
Deduplication architecture
Deduplication server components 110