I have a Western Digital 250GB SATA-II drive on an NForce4 integrated
SATA-II controller, here are my readings...
hdparm -I /dev/sda | grep -i dma
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
/dev/sda:
Timing cached reads: 1646 MB in 2.00 seconds = 823.19 MB/sec
Timing buffered disk reads: 172 MB in 3.03 seconds = 56.77 MB/sec
Machine is an Athlon X2 3800+ running Gentoo 2007.0 AMD64
A Western Digital 500GB SATA-II drive, connected through a SATA-I PCI
card on another Gentoo box reports:
hdparm -I /dev/sda | grep -i dma
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
DMA Setup Auto-Activate optimization
/dev/sda:
Timing cached reads: 312 MB in 2.01 seconds = 155.28 MB/sec
Timing buffered disk reads: 162 MB in 3.02 seconds = 53.65 MB/sec
The onboard Maxtor 60GB IDE drive reports:
hdparm -I /dev/hda | grep -i dma
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5
/dev/hda:
Timing cached reads: 312 MB in 2.01 seconds = 155.17 MB/sec
Timing buffered disk reads: 76 MB in 3.05 seconds = 24.88 MB/sec
Machine is a Dell PowerEdge 350, PIII server running Gentoo 2007.0 i386.
I'm curious, is your optical drive also SATA? If it's not, then how do
you intend to access it without ATA/ATAPI drivers?
-Hal
Dale wrote:
> Wayn0 wrote:
>
>> William Kenworthy wrote:
>>
>>> If you have sata drives, and they are showing up as hdx, you have
>>> something seriously misconfigured. They should be showing as sdx.
>>>
>>> Deselect everything in ATA/ATAPI/MFM/RLL and select the relevant boxes
>>> in serial ATA. Dont forget fstab will need redoing to match.
>>>
>>> I always thought that if you select both, serial ata should take
>>> precedence, and in some cases you can access via both, but I have at
>>> least one machine that will only work as sata with all the older ata
>>> stuff deselected.
>>>
>>> BillK
>>>
>> Thanks Bill,
>>
>> removing all the ATA/ATAPI/MFM/RLL stuff sorted it out.
>>
>> :-)
>>
>>
>> Wayn0
>>
>
> Would you mind posting what speeds you get now? I'm curious myself.
>
> Thanks
>
> Dale
>
> :-) :-)
>
