Multiple copies can also be configured for a relocation schedule, created as part of basic disk staging storage unit configuration. The Global host property must be set to include an additional copy beyond the number of copies to be created in the Multiple Copies dialog box. For example, to create four copies in the Multiple Copies dialog box, the property must be set to five or more.
Since NetBackup eventually relocates a backup from the initial, temporary staging storage unit to a final destination, NetBackup considers this to be one copy. NetBackup automatically counts this copy against the value.
More Information
Use only one method to create multiple copies
Multiple copies schedule attribute
Multiple copies and storage lifecycle policies