About the OpenStorage plug-in
A software plug-in must reside on every NetBackup media server that moves backup data to the storage server. The plug-in must conform to the Veritas OpenStorage API specification. The vendor exposes the storage capabilities to NetBackup through the plug-in.
To determine a disk appliance's capabilities, NetBackup uses the plug-in to query the storage appliance. Capabilities can include deduplicated storage, optimized off-host duplication, and so on.
If a vendor updates their plug-in, you must update NetBackup with the new or changed capabilities exposed by the plug-in.
See Updating an OpenStorage storage server to reflect plug-in updates.
For disk appliance storage, the appliance vendor provides the plug-in. The vendor should provide information about how to install the plug-in.