On some site, when VTL600 registers license, add license according to the CODE on license paper, export dat file offline, apply for license and import. It says successful, then create VLT, it says ‘it reaches to the maximum of VTL, 0 , cannot create VTL’.
Import all the license CODEs, apply again, after import, it is successful to create VTL.
The license of VLT is typed as function, including VTL number, tape number, drive number license, backup license, front line host port number license and so on. If you just import increment license or front line port license , it will fail to create VTL.
Only the license which supports basic functions can create VTL.