just in case you are interested. None of the log or message files captured the problem. IBM said that with out that info there is nothing they can do. And considering that it is hard to reproduce this problem PMR is closed.
What I did find out is there is a system command that it appears very few use and know how to use it. It is called
db2relocatedb that allows you to move containers with out rebalancing. It has to be done off line, but looks like a much quiker way to accomplish the job. in my case each add and drop took over two hours to rebalance its self.
This command can do much more then just move containers, so look it up.
You can get more info on this command
HERE
Is it a happy hour yet?
p.s.Totally forgot. I have renamed those files back then, and since timestamp did not changed and db2pd -db dbname -tablespaces command showed that they do not belong to this db any longer I have dropped those files. So, far so good
