>
> i am looking for a motherboard for a new NetBSD production server.  it
> should support IDE (pseudo-)raid, ecc ram support is a plus, 1 cpu is
i don;t know any real IDE raid on motherboards.

> enough.
>
> what i am curious about is the IDE raid device, can one configure two
> mirror volumes from 4 disks (2+2) with these?
>
>             ,-- channel 1 -- disk A1 - disk B1
>            /                   ||        ||
>  IDE raid <                  mirror    mirror
>            \                   ||        ||
>             `-- channel 2 -- disk A2 - disk B2

yes of course!

but using master/slave config is bad idea and will slow down everything.

better just buy extra PCI IDE card and put every disk on another channel.

>
> anyone can recommend some mobo with NetBSD supported IDE raid which is
> capable of doing this and matches listed needs (ecc ram support
> (optional), 1 cpu, onboard eth/graphics/sound are not neccessary)?
>
i don't think any special mobo is needed. but something with well tested
intel chipset, or athlon with AMD chipset. avoid VIA