Hi @Anirban
I am the one who helped you with that issue ... 🙂
1 . Please check cifs services are configured on the 7-mode controller or not. cifs must be configured on the 7-mode controller in-order to integrate active directory.
2. Please create a group with specific permissions
useradmin group add <group name> -r <role>
3. Please use the below command to add the AD users to the group.
useradmin domainuser add <AD\user (or) group> -g <local group name>
After that please try to login to netapp using below format
username : AD\<user name>
Password : AD password