Configuring Openstorage Optimized Duplication Behavior - Symantec NetBackup Manual

96 Configuring OpenStorage

Configuring OpenStorage optimized duplication behavior

Configuring OpenStorage optimized duplication
behavior
Define a storage unit (such as STU-FT). Select the disk pool. Select Only use
the following media servers. Select the FT media servers that connect to the
SAN clients.
Create a backup policy for the SAN clients and select the STU-FT storage unit.
Define another storage unit (such as STU-LAN). Select the same disk pool.
Select Only use the following media servers. Select the media servers with
LAN connectivity to the regular clients.
Create a backup policy for the regular clients and select the STU-LAN storage
unit.
Backup traffic is routed to the wanted data movers by the storage unit settings.
This scenario assumes that the SAN clients are a subset of your client base. It also
assumes that the media servers with LAN connectivity to the regular clients also
have SAN connectivity to the storage.
Note: NetBackup uses storage units for media server selection for write activity
(backups and duplications) only. For restores, NetBackup chooses among all media
servers that have logon credentials to the storage server.
About throttling OpenStorage traffic to the media servers
You can use the Maximum concurrent jobs settings on disk pool storage units to
throttle the traffic to the media servers. Effectively, this setting also directs higher
loads to specific media servers when you use multiple storage units for the same
disk pool. A higher number of concurrent jobs means that the disk can be busier
than if the number is lower.
For example, two storage units use the same set of media servers. One of the
storage units (STU-GOLD) has a higher Maximum concurrent jobs setting than
the other (STU-SILVER). More client backups occur for the storage unit with the
higher Maximum concurrent jobs setting.
You can configure the following optimized duplication behaviors: