Two thoughts: One is that frequently verifying availability is going to get expensive quick with iops for coldish storage systems. Secondly, iirc symmetric en

Two thoughts: One is that frequently verifying availability is going to get expensive quick with iops for coldish storage systems. Secondly, iirc symmetric encryption isn't really vulnerable to quantum algorithms, as far as we know (and maybe even proven not to be?). It's asymmetric crypto that's at risk.