I notice the severity of this bug has been changed from critical to normal. With all due respect, I doubt the wisdom of this decision. After the RAID5 has morphed into a phantom array, the volume group it contains and all associated logical volumes have disappeared completely. That means ALL data is gone ... as far as I've seen, forever. Frankly, I would have trouble imagining a bug that could cause more damage than wiping out (possible huge amounts of) data. Maybe the status of this particular bug should be reconsidered?