[ltp] T40: DMA Mode

Thomas de Grenier de Latour linux-thinkpad@linux-thinkpad.org
Fri, 7 Nov 2003 17:17:25 +0100

On Fri, 7 Nov 2003 16:34:02 +0100
markus@nospers.de wrote:

> Hi,
> i've the Problem, that it seems that I can't enable the dma mode of
> the harddrive of my T40. 
>         DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 

Wait, doesn't this means you do have DMA enabled?

That said, it's true that 6,8Mb/s is slow. I don't have the same drive,
so I can't really compare, but with my 40Gb (not the same manufacter I
think, but also on a T40/ Gentoo/ 2.6.0-test9-mm1), reading is more
like 21Mb/s.

>         Recommended acoustic management value: 0, current value: 64
>            *    Advanced Power Management feature set

Maybe this "acoustic management" slow down things (I don't have this
in my hdparm output).

Also, I don't have all this "SMART" feature, and I think it is because
I've not configured the "local apic" in the kernel. Don't know if it is
good or bad.

Could you send "hdparm /dev/hda" and "hdparm -i /dev/hda"? They are
easier to read, maybe something will then show up.