To update the VMM agents on the nodes of a highly available (HA) library server, in the Fabric Resources view, expand Servers. ...

To update the VMM agents on the nodes of a highly available (HA) library server, in the Fabric Resources view, expand Servers. Then select each of the HA library server node agents and click the Update Agent action. To find out the nodes of an HA library server, you can view the properties of the highly available library server or use the Discover-Cluster cmdlet.