I am facing the below scenario: 3 physical servers have instances that are clustered together using RAC. The instances have different options/pack configurations. At the server level, each server is already licensed for the same options and packs except that 1 server has Advanced Compression, which is running on 1 instance that doesn’t have RAC installed. No other instance have Advanced Compression. The question is, if I want to make sure that Advanced Compression is covered, is it just the 1 server that has to be licensed, or the other servers are also affected? Thanks.