resource disque {
  meta-disk internal;
  device /dev/drbd1;
  syncer {
        verify-alg sha1;
  }
    on machine1  {
        disk /dev/loop1;
        address 192.168.4.233:7014;
    }
    on machine2 {
        disk /dev/loop1;
        address 192.168.4.200:7014;
    }
}