Re: hdparm and DMA
On Mon, Nov 18, 2002 at 12:47:09 -0500, Mike Dresser wrote:
> On Tue, 19 Nov 2002, mdevin wrote:
> > # hdparm -i /dev/hdc
> > /dev/hdc:
> > Model=WDC WD400BB-32AUA1, FwRev=18.20D18, SerialNo=WD-WMA6R3707054
> > DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5
> > # hdparm -i /dev/hda
> > /dev/hda:
> > Model=WDC WD400JB-00ENA0, FwRev=05.03E05, SerialNo=WD-WMAD12312399
> > DMA modes: mdma0 mdma1 *mdma2 udma0 udma1 udma2 udma3 udma4 udma5
> Definately in non-ultradma mode, mdma2 is ... 16mbyte/sec?
> See the DMA mode it's using? I'd take a look at your cabling and routing
> thereof. What kind of cable is connected to the drive? Can you take
> this hard drive and stick it in the other computer, and see how it
> performs, using the cable that is in the other computer?
My other computer is older and its motherboard doesn't have support for
ATA133 (80pin cable), but I guess it would just be treated as ATA100. I
can't shut that one down at present though.