When moving a multivolume tape data set that resides on a RACF-protected tape volume set, you might need to update the profile for the tape volume set on the destination system. This step is necessary if the multivolume data set was extended to additional volumes on one system and is then moved to another system where the tape volume set is defined to RACF®. To update the profile for the tape volume set on the destination system, enter the RALTER command with the additional RACF-protected volumes specified on the ADDVOL operand.