atacontrol

[Nikolas Britton]

On 8/16/05, Dick Hoogendijk <dick at nagual.st> wrote:
> I have a simple question. Some time ago I was told always to use the
> same type of harddisk transfers. Now I have i.e.:
> 
> Master = UDMA100
> Slave  = UDMA66
> 
> Does this mean the first disk really works on UDMA100 or is is delayed
> by the second one (as I was told some time ago).
> 
> Or is the fbsd ata controller capable of setting each drive to its
> right speed?

AFAIK everything slows down. This is a hardware problem and FreeBSD
can do nothing about it. This is why I only put one device on a
controller/channel, I also do it because the controller can only talk
to one device at a time.