When you intend to start your DAOS rollout using the recently released Domino 8.5.2, you will get a warning, when the DAOS repository is located under the Domino data directory. Having the DAOS repository in this location is not a recommended configuration.
Domino will show a warning
And IBM makes it very, very clear that they do not want you to put your .NLOs relative to the data directory by showing this warning at least 5 times when the document is opened for editing and another 6 times when saving and closing the server document.
If you are an administrator, don’t bother. It turned out to be a reproducable bug that will get fixed in 8.5.3. If you are a developer, look into the input validation of the DAOSBasePath item in the server\server form and fix it on your own.
IBM’s John Paganetti commented this with “Guess we really don’t want you to put under data directory anymore… :)”