During the upgrade process from pre-9.0 releases to CUCM 9.0 and later, ELM is installed and lets you convert your licensing from the DLU model to the UCL/CUWL licensing model. This worked fine for the upgrades that I have already done, but now I am trying to plan how to allocate unused DLUs to the other license classes for the dozen or so additional clusters that I need to migrate. ELM does NOT appear to have an offline mode where you can enter a number DLUs and then come up with an acceptable allocation of UCL/CUWL/TP rooms beforehand.
Is there a formula somewhere that I can use to do this planning in advance of the actual upgrades?
Are you sure the LCU report shared contains unused DLUs? If that is there, then, u can ask licensing team to revert on conversion of unused DLUS.
this should not be the case.
You should receive mail from Cisco licensing team /Product Manager asking for the confirmation on conversion of Unsed DLUs to Enhanced/Basic.