During tape installation, checkpoint procedures must be modified when checkpoint tape volumes reside in a tape library automated by a Tape Library Dataserver. A checkpoint indicator will be recorded in the volume's tape configuration data base record, in addition to its file label. The checkpoint volume's tape configuration data base record indicator will be added and/or deleted whenever the volume changes status. Instead of requesting checkpoint volume confirmation from the operator, the volume's tape configuration data base record will be read. For more information see z/OS DFSMS Access Method Services Commands.

When a cartridge is ejected, checkpoint status will be displayed to aid the tape library personnel in executing installation checkpoint volume procedures.