A long time ago, in a galaxy far, far way, someone said...

> >What kernel is this?  If you're using 2.4.x or 2.2.x with Andre Hedrick's
> >IDE patches this is done automatically.
>
> It's 2.4.7 (from kernel.org)
>
> >hdparm /dev/hda
>
> /dev/hda:
>   multcount    =  0 (off)
>   I/O support  =  1 (32-bit)
>   unmaskirq    =  1 (on)
>   using_dma    =  1 (on)
>   keepsettings =  0 (off)
>   nowerr       =  0 (off)
>   readonly     =  0 (off)
>   readahead    =  8 (on)
>   geometry     = 50800/16/63, sectors = 117266688, start = 0
>
> Do you refer to the I/O 32-bit support thing? (i.e. 32 bits are
> translated to 66mhz 16 bits on the cable?)

No - having 32-bit I/O support enabled can help some, but it's not what
you're looing for.

You're looking for what it says for the using_dma flag.

You can also run

        hdparm -t /dev/hda

as root - with UMDA66 you should see results somewhere in the vicinity of
25-30 MB/sec.


Phil

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