When a multivolume tape data set is opened for input, RACF® performs authorization checking for those volumes that are RACF-protected.

When a multivolume tape data set is opened for output, and the first volume is RACF-protected, all succeeding volumes are RACF-protected as part of the same volume set.

When attempting to effect changes to multivolume tape data sets, use the RALTER command rather than the RDELETE command. If the resource you specify is a member of a tape volume set, RACF deletes the definitions for all of the volumes in the set.

A single profile is maintained in the RACF database for a tape volume set. Thus all volumes in the volume set share the same access list and the same statistics and auditing options. (For additional information on protecting multivolume tape data sets, see Protecting existing data on tape (SETROPTS TAPEDSN in effect).)