Native SATA vs. PATA-emulation - difference?

[Patrick M. Hausen]

Hi, all!

On Mon, May 21, 2007 at 02:36:48PM +0200, Oliver Fromme wrote:

> Are the disk sizes exactly the same in both cases?  Please
> provide dmesg output from the 2nd case (native SATA).

Good point ;-) But ...

P-ATA emulation:

atapci0: <ServerWorks HT1000 SATA150 controller> port 0xc080-0xc087,0xc000-0xc003,0xbc00-0xbc07,0xb880-0xb883,0xb800-0xb80f mem 0xff3fe000-0xff3fffff irq 11 at device 14.0 on pci1
ata2: <ATA channel 0> on atapci0
ata3: <ATA channel 1> on atapci0
ad4: DMA limited to UDMA33, device found non-ATA66 cable
ad4: 157066MB <WDC WD1600YS-01SHB1 20.06C06> at ata2-master UDMA33
ad6: DMA limited to UDMA33, device found non-ATA66 cable
ad6: 157066MB <WDC WD1600YS-01SHB1 20.06C06> at ata3-master UDMA33

Native S-ATA:

atapci0: <ServerWorks HT1000 SATA150 controller> port 0xc080-0xc087,0xc000-0xc003,0xbc00-0xbc07,0xb880-0xb883,0xb800-0xb80f mem 0xff3fe000-0xff3fffff irq 11 at device 14.0 on pci1
ata2: <ATA channel 0> on atapci0
ata3: <ATA channel 1> on atapci0
ad4: 157066MB <WDC WD1600YS-01SHB1 20.06C06> at ata2-master SATA150
ad6: 157066MB <WDC WD1600YS-01SHB1 20.06C06> at ata3-master SATA150

I don't see a difference here that could be the root cause of the
problem.

Besides, I'm using ad4s1 and ad6s1 as the providers for
gmirror, so a few sectors plus/minus at the very end of the
raw disk should not matter.

Thanks,
Patrick
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