Since Data Protection for SQL Server VSS backup operations are implemented through the Tivoli® Storage Manager backup-archive client, you must use node names specifically for VSS operations in addition to using a node name for where Data Protection for SQL Server is installed.
As part of the configuration procedure, a proxy relationship is defined for these various node names. By default, this proxy relationship is defined when you run the configuration wizard. You can use this topic for information about manually completing the configuration.
This proxy relationship allows node names to process operations on behalf of another node name. When you register these nodes to the Tivoli Storage Manager server for VSS operations, do not specify the Tivoli Storage ManagerUSerid=NONE parameter. VSS operations fail when this parameter is specified.
GRANT PROXY TARGET=dpsql_node_name AGENT=dsmagent_node_name