If you are only using 1 pool, it makes no difference. So long as you have a pool configured, that's all that is needed. Pool's are used to assign different indexing volumes to different indexers. If all your indexers should be indexing data equally, then a single pool, either auto-generated, or manually created is all you need. Have a read over this if you have not already: https://docs.splunk.com/Documentation/Splunk/9.0.1/Admin/Createalicensepool   ... View more