This is from our host:
If this is the problem. We will keep Dallas 1 online and rsync (migrate) all accounts to a new better working machine.Dallas 1 is having problems again. If they cannot figure out and finally resolve this issue, we'll just consider it a lemon and have them replace it with a new identical server (with a different model RAID card). Dallas 2 has a different RAID card than Dallas 1. It's possible the RAID card on Dallas 1 is giving us grief (even after a firmware upgrade).