You must specify at least one tape device to do a backup. If you specify more than one tape device, each tape device in the list is used in the order listed to write a tape file.
You can specify two types of tape devices: local and remote.
If the backup requires more tape devices than the number specified, the last tape device is used for all remaining tape files.
Note that the storage system device names might not be valid on remote tape drive hosts. For tape drives attached to remote hosts, use tape device names that follow the host naming conventions.