Since June 30th the new version of XenMobile (Version 9) is avaible for download. After testing everything in my testcenter without cluster configuration I decided to install it into production. That was a mistake.
To update a cluster you need to be very careful! Otherwise you’ll get an error page 404 while opening http://localhost/zdm on your XenMobile Device Management (XDM) cluster. That is what happened to me. How to fix it will be focus of this blog article:
1. Connect to all of your nodes in your cluster.