If you use the following platforms: AIX, Solaris or Linux, you can license your product using the installer script. If you registered keys manually at the command line, using the vxlicinst binary, you need to use the vxlicinstupgrade binary, but for the following two circumstances:
Upgrading from 6.0 or later
Adding a new license when you transition a smaller product to a larger product
For more info see Veritas InfoScale Release Notes.