Quantum DXi4500, User Manual

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Chapter 5: DXi4500 Configuration
NAS & OST Configuration
70 Quantum DXi4500 User’s Guide
Note: LSUs in the storage server with active connections (non-
zero current connections) cannot be deleted.
OST Client Plug-In
The OST Client Plug-In (see Figure 24 ) allows the NetBackup software
running on your backup host to communicate with the DXi4500 OST
service. You must download the OST Plug-in client to your backup host,
then install and configure the client to allow your NetBackup software
to use the OST feature.
Figure 24 OST Client Plug-In
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OST Optimized
Replication
The Quantum DXi4500 has the capability to copy data from one
appliance to another appliance. NetBackup uses this capability to
initiate optimized data mover copy of backup images between these
appliances. The duplicate operation of NetBackup triggers the
replication function in OST if both the source and destination volumes
for the copy are OST disk volumes. OST optimized off host replication
reduces the workload on the NetBackup media server because the copy
process does not require host resources. Replication can be done in the
background very quickly as it uses Quantum’s data deduplication
capabilities to reduce the copy bandwidth. Replication is still initiated,