Thank u angel
I will try to rectify the errors in the snapshots and will try to refresh the group again and will be back with the result.But still my doubt is if the operations are rollbacked,what happend to the changes made at Snapshot?they too should be rollback is it?.But this thing is not happend in this case.since i lost all the changes i made at the snapshot site.Can u put some more light on this issue please.
regards
akhadar