Hello,
in one of my test environments I upgraded my IPA server from 3.0 on CentOS 6.6 to 3.3 on CentOS 7.0.
This was mainly due to testing IPA integration wit vSPhere (see here for a draft doc on how I managed it
http://www.freeipa.org/page/HowTo/vsphere5_integration
)
The workflow was as detailed in Chapter 6 here, creating a replica and decommissioning the old one:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Linux_Domain_Identity_Authentication_and_Policy_Guide/upgrading.html
So I now have a new IPA server for the same domain with another hostname/ip.
In the mean time I reinstall in version 7 the old IPA server, how can  inform/update oVirt about the domain changes? 

[root@ovirtmgr ~]# engine-manage-domains edit --domain=localdomain.local --provider=ipa --ldap-servers=c7server.localdomain.local
Enter password:
Failure while testing domain localdomain.local. Details: An internal error has ocurred in the Kerberos implementation of the Java virtual machine. This usually means that the LDAP server is configured with a minimum security strength factor (minssf) of 0. Change it to 1 and try again.

ANy file I can eventually manually edit?

Thanks in advance,
Gianluca