I’ve been asked about ZLM cache licenses.
These are enabled in two places – in the base server.key license file; also with activation licenses for the caches.
First step is to check your server.key enables cache support
The server.key must have a line:
< caches > some number < /caches >
If the server.key does not have this line you will need a new server.key. Get this from Novell.