Environment
Novell ZENworks 10 Configuration Management with Support Pack 3 - 10.3 Authentication
Situation
iarealms.xml file is not being re-written correctly on reboot of server
Resolution
This is fixed in version 10.3.1 - see KB 7006265 "ZENworks Configuration Management 10.3.1 - update information and list of fixes" which can be found at Novell Support