"DG" == Dennis Gearon <gearond@fireserve.net> writes:
            

DG> With the low cost of disks, it might be a good idea to just copy to
DG> disks, that one can put back in.

Your file system copies will be broken, since they only work if
PG is shut down.  For this very reason I don't even bother doing a
file system dump of the PG data partition.