Home > Storage > PowerScale (Isilon) > Product Documentation > Management and Migration > PowerScale OneFS User Mapping: Mapping Identities Across Authentication Providers > A note about adding more rules with the CLI
You can create the first mapping rule with the option in the following command:
isi zone zones modify System --user-mapping-rules
If you try to add a second rule with the command above, however, it replaces the existing rule rather than adding the new rule to the list of rules. To add more rules to the list of rules, you must use the following option:
isi zone zones modify System --add-user-mapping-rules