NBDEPLOYUTIL will give you what you're using. You'll need to log on to the support/entitlement page in order to see what your capacity is. You can upgrade to 8.2 ( might be available with 8.1.2? I can't recall) and configure SmartMeter to upload regularly. Smart Meter will have what you're entitled to and how much is currently in use.
Note that there is a problem with the telemetery data from the Master servers that SmartMeter ingests. We had to apply an EEB to fix it because we were over our license according to SmartMeter but were way below our entitlement according to NBDEPLOYUTIL. EEB (3994999)
You fill in what it asks you for?
The type of Domain you are using to authenticate against.
The Domain name.
Your username / Or service account you use to access NBU
Password for the account you used in the above step.
Type of Domain: WINDOWS
The password field will be blanked out.
From Command Ref Guide: https://www.veritas.com/support/en_US/doc/15263389-130536298-0/v47335045-130536298
Domain Type: Enter a domain type value from NIS, NISPLUS, WINDOWS, vx, unixpwd, ldap. This value is case-sensitive.
*** (Solaris should be unixpwd)
Domain Name: Name of the domain that the master server host belongs to. If the master server does not belong to any domain, enter the name of the master server.
User name: Name of the user that has administrator privileges.
Password: The password of the same user that has administrator privileges. When you enter the password, characters are intentionally not displayed in the command line.