Hi, I have cases open with IBM and Platinum both and so far the only thing we found out is that there is a data corruption that happend during the upgrade. I will update the forum if I get some solution form any one of them Thanks,
It finally turened out that the tablespaces in question are corrupted and cannot be repaired. Platinum support doesnot think that any upgarde could have caused that. The only soluion was to drop and re-create all the corrupted objects, which we did and the issue was resloved.