On 09/02/13 08:19, John Hynes wrote: ... > The "new" sd2 is identical to the old, which is identical to the other > disks.
you provide ZERO proof of this, which makes me guess that you buy disks of the same maker and same model number and assume the rest. This is very often wrong. Proof of that is hanging out of my hw raid box on this computer right now -- two "identical" drives, purchased on the same date from the same store. one is a few sectors larger than the other. Smaller drive can be mirrored to larger, larger can not be mirrored to smaller. Nick.
