Drive drive-name1 was found to be a substitute (SUBST) of drive drive-name2. The SUBST drive cannot be backed up or archived.
The SUBST drive is skipped. Processing continues with the next drive.
Do not specify any file specifications for a drive that is a substitute of another drive. Remove any explicit substitute drives from the DOMAIN statement or use the -<drive:> notation to remove a substitute drive if ALL-LOCAL is specified.