Symantec NETBACKUP 7 - Manual (Page 56)

Enabling client deduplication
To enable Client Deduplication, set an attribute in the NetBackup master server
Client Attributes host properties.
To specify the clients that deduplicate backups
1 In the NetBackup Administration Console, expand NetBackup Management
> Host Properties > Master Servers.
2 In the details pane, select the master server.
3 On the Actions menu, select Properties.
4 On the Host Properties General tab, add the clients that use client direct to
the Clients list.
5 Select one of the following Deduplication Location options:
■ Always use the media server disables client deduplication. By default, all
clients are configured with the Always use the media server option.
■ Prefer to use client-side deduplication uses client deduplication if the
PureDisk plug-in is active on the client. If it is not active, a normal backup
occurs; client deduplication does not occur.
■ Always use client-side deduplication uses client deduplication. If the
deduplication backup job fails, NetBackup retries the job.
You can override the Prefer to use client-side deduplication or Always use
client-side deduplication host property in the backup policies.
See Disable client-side deduplication in the NetBackup Administrator's Guide
for UNIX and Linux, Volume I.
See Disable client-side deduplication in the NetBackup Administrator's Guide
for Windows, Volume I.
Configuring backups
When you configure a backup policy, for the Policy storage select a storage unit
that uses a deduplication pool.
For a storage lifecycle policy, for the Storage unit select a storage unit that uses
a deduplication pool.
For VMware backups, select the Mapped full VM backup option when you
configure a VMware backup policy. The Mapped full VM backup option provides
the best deduplication rates.
Configuring deduplication
Enabling client deduplication 56