If all the siteworx feature works, then it means that it is completly possible to separate the mysql server
Do you see others impacts, than the one about the service management (start/stop). Because this problem is an admin problem and not a final user one, and in this case, for us it is not so important
Today I can run a backup from command line from the node or the Cm so could I conclude the backup and mysqldump sholdn’t be a problem ? but for a backup from siteworx accounts ?