Robert, Jacques is correct, to test the backup you could use following: (this is just an example from my environment, replace options/values for your environment!)
dsmc backup vm -vmfulltype=vstor -vmbackuptype=fullvm -asnodename=VE_DATACENTER1 -domain.vmfull="VMFOLDER=TSM_DM_01" -MODE=IFIncremental My folder is named TSM_DM_01 for the first datamover, I attach data movers and schedules to that particular folder this way.
