Rob wrote:
Joel wrote:
On Tue, 26 Apr 2005 18:44:18 -0700 (PDT)
Rob <[EMAIL PROTECTED]> wrote
I'm running FreeBSD on a range of PCs, from
Pentium-1 (60 MHz) to Pentium-4 (2.60GHz), though
none but one has a 'ata2' line in the dmesg output:
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
...
ata2: <Generic ESDI/IDE/ATA controller> at port
0x36e-0x36f,0x168-0x16f irq 10 on isa0
ad0: 6149MB <QUANTUM FIREBALL EX6.4A/A0A.0D00>
[13328/15/63] at ata0-master UDMA33
ad1: 4892MB <QUANTUM FIREBALL EL5.1A/A08.1100>
[10602/15/63] at ata0-slave UDMA33
acd0: CDROM <GCR-8521B/1.02> at ata1-master PIO4
What is so special about this particular PC, that
it has an ata2, unlike all other PCs I have?
Can I add more than 4 disks (2 masters + 2 slaves)
to this PC? Or is this ata2 for something else?
From here, with the limited information you've
provided, I'm guessing you can, if you have the
cables and the spare power connectors.
I'm quite keen on trying to understand this.
So let me try to provide more information below.
As above lines show, the ata2 controller is on
interrupt 10:
# vmstat -i
interrupt total rate
irq0: clk 10392173 100
irq1: atkbd0 1 0
irq3: sio1 219 0
irq4: sio0 1 0
irq8: rtc 13301014 128
irq11: rl0 uhci0 187119 1
irq13: npx0 1 0
irq14: ata0 491426 4
irq15: ata1 46 0
Total 24372000 234
But interrupt 10 is not there !?!
# atacontrol list
ATA channel 0:
Master: ad0 <QUANTUM FIREBALL EX6.4A/A0A.0D00>
ATA/ATAPI revision 4
Slave: ad1 <QUANTUM FIREBALL EL5.1A/A08.1100>
ATA/ATAPI revision 4
ATA channel 1:
Master: acd0 <GCR-8521B/1.02> ATA/ATAPI revision 0
Slave: no device present
ATA channel 2:
Master: no device present
Slave: no device present
----------------------
You also mentioned USB possibility:
# grep -i usb /var/run/dmesg.boot
uhci0: <Intel 82371AB/EB (PIIX4) USB controller>
port 0xe000-0xe01f irq 11 at device 7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller>
on uhci0
usb0: USB revision 1.0
What would you conclude from this?
Is this ata2 another IDE controller, so that I can
add 6 (instead of the normal 4) harddisks/cdroms etc.
to this computer?
Thanks,
Rob.
__________________________________________________
You have more than 2 controllers. A whole dmesg would help, or just
tell us your make/model of your motherboard.
BTW, vmstat -ia might be usefull, most likely not.
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