RAID1 and ASUS PSCH-L motherboard

Hello,

I intalled FreeBSD 5.3 without problem on my ASUS PSCH-L server
motherboard. I setup a RAID 1 array in the BIOS of the Promise PDC20319
controller and I boot on the RAID array: "Hard Disk Drives:[FT TX Ary
1]".
FreeBSD 5.3 supports perfectly this controller in view of the atacontrol
commands and all seem ok:

# atacontrol list
ATA channel 0:
    Master: acd0 <SAMSUNG CD-ROM SH-152A/C503> ATA/ATAPI revision 4
    Slave:       no device present
ATA channel 1:
    Master:      no device present
    Slave:       no device present
ATA channel 2:
    Master:      no device present
    Slave:       no device present
ATA channel 3:
    Master:  ad6 <Maxtor 6Y160M0/YAR51HW0>     Slave:       no device
present
ATA channel 4:
    Master:      no device present
    Slave:       no device present
ATA channel 5:
    Master: ad10 <Maxtor 6Y160M0/YAR51HW0>     Slave:       no device
present
# atacontrol status ar0
ar0: ATA RAID1 subdisks: ad6 ad10 status: READY
#

I have two questions:
1)Can someone explain to me why the disks numbering ad6 et ad10?
2)How to do to check the RAID 1 is operational without all to break?

Here the ships of my board:

Chipset         Intel® E7210 (CanterWood-ES) Memory Controller Hub
-Intel® 6300ESB IO Controller Hub (Hance Rapid)
-Support mémoire PC3200 DDR (Unbuffered DIMM, non-ECC et ECC)
-Support des bus 64bit/66MHz PCI-X et 32bit/33MHz

Contrôleur Serial ATA
        Contrôleur Promise PDC20319 4 Port 32bit/66MHz PCI Serial ATA,
supportant les modes RAID 0, 1, 0+1
Contrôleur Intel 6300ESB IO Hub, provide 2 x Serial ATA supportant les
modes RAID 0, 1

IDE     Primaire & Secondaire channel bus master IDE ports support
ATA100,
Multi-Word DMA Mode 2, PIO Mode 3/4.

Thank in anticipation,
claude
-- 
Clé publique: http://pgp.mit.edu