You need to select a backup storage media . By default, the docker volume
DASD_BACKUP is available for use. This is a local DASD-based docker volume
(docker volume name: zswam_backup-91-HCL) created during the
installation process. If you have configured external backup storage media locations,
you can select one of the available locations that is configured. Any external backup
storage media that has not been configured or is not available will not be
selectable.Figure 1. Repository Backup Target Storage Medium Selection
