Symantec NETBACKUP 7 - Manual (Page 111)

Table 9-1 NetBackup deduplication components (continued)
Description Component
The deduplication manager is one of the storage server core
components. The deduplication manager maintains the
configuration and controls internal processes, optimized
duplication, security, and event escalation.
The deduplication manager binary file name is spad. The spad
process appears as the NetBackup Deduplication Manager in the
NetBackup Administration Console.
NetBackup
Deduplication
Manager
The catalog plug-in implements a standardized catalog API, which
lets the NetBackup Deduplication Engine communicate with the
back-end database process. The catalog plug-in translates
deduplication engine catalog calls into the calls that are native to
the back-end database. Catalog plug-in
The deduplication database stores and manages the metadata of
deduplicated files. The metadata includes a unique fingerprint
that identifies the file’s content. The metadata also includes
information about the file such as its owner, where it resides on
a client, when it was created, and other information.
NetBackup uses the PostgresSQL database for the deduplication
database.
You can use the NetBackup bpps command to view the database
process (postgres).
The deduplication database is separate from the NetBackup
catalog. The NetBackup catalog maintains the usual NetBackup
backup image information.
On Windows systems, NetBackup creates a purediskdbuser
account for database management.
Deduplication
database
Media server deduplication process
Figure 9-2 shows the backup process when a media server deduplicates the
backups. The destination is a media server deduplication pool. A description
follows.
111 Deduplication architecture
Media server deduplication process