HP StoreOnce Backup System CLI Reference Guide

If the local administrator name provided contained invalid characters or was an invalid length,
the following is displayed:
Invalid domain name
If the CIFS sever authentication mode is not set to Active Directory, the following is displayed.
Local administrators are not configurable in any other authentication mode.
CIFS Authentication is not AD
Example
# cifs add localadmin name name1@servername.com
Command Successful
cifs add localadmin 29