Does A2 Hosting maintain backups of the VPS-es? That is, what will happen if the physical server where our VPS resides is damaged (hard drive crash, fire, etc)? If not, is it available as an additional service? What is the policy in case of such failures anyway?We already backup the important data in our VPS with rsync, and the VPS is not that critical anyway (for now), but I am wondering how paranoid I should be.