Posted by ErmanArslansOracleBlog on Apr 03, 2023; 7:25am URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/Add-X9M-cell-servers-to-existing-X8M-rack-tp11756p11758.html
Also walk through the following blog post.. (it is high level but it might help.. You should go into the details when necessary)