When installing VNX storage arrays using the VNX Installation Assistant I've noticed that once the install wizard completes and you try to login with the normal nasadmin or root account you get an authentication error. You can only log in as sysadmin. The root and nasadmin accounts are supposed to be created by the wizard, but this process seems to fail.

It’s necessary to manually create the nasadmin and root accounts in Unisphere and make them both administrators.

When you create the root account in Unisphere there are special permissions that need to be assigned to it that are not enabled when you give it the Administrator role in the Unisphere gui. To enable the true root user with root permissions on the new VNX you have to run a command in the CLI. Here is the process I use  to work around this situation:

1&gt;  Create the root and nasadmin users in Unisphere

2&gt;  SSH into the Control Station, logging in as root. Run the following command to give the root user the correct permissions: /nas/sbin/addRootIdToUser root

3&gt;  After running the command you will see the following output:

username: root
uid: 502
The uid has been successfully changed to zero.

4&gt;  Once you complete these steps the root user will have full root permissions.