AT_RAID1
case VD_RAID_1: return AT_RAID1;
cap->SupportedRAIDTypes[1] = AT_RAID1;
cap->SupportedRAIDTypes[2] = (AT_RAID1<<4)|AT_RAID0; /* RAID0/1 */
cap->SupportedRAIDTypes[2] = (AT_RAID0<<4)|AT_RAID1; /* RAID1/0 */
case AT_RAID1: