we are in process to move many lpars (AIX) to new hardware. This we do with a process developed together with IBM. So far so good. But on two lpars we could see this with the startrpdomain command:
...Cannot start or refresh. IP address duplicated in configuration file....
in syslog and in errpt you can see this:
Date/Time: Sat Jul 28 16:50:22 2012
Sequence Number: 243873
Machine Id: 00C99AF04C00
Node Id: gxpb2101
Resource Name: cthats
Cannot start or refresh. IP address duplicated in configuration file
Same IP address appears more than once on the system
The repository indicates that same IP address appears more than once on the system
Verify and remove the duplication
The node number where IP address duplication occurs
The duplicated IP address
The question is: which configuration file is responsable? There was definitely no duplicate IP at that time!