Re: OpenBSD on Sunfire V100 + external USB

On Wed, 19 Dec 2007, Jonathan Gray wrote:
> The on board USB on V100/V120/X1 is ohci aka USB1,
speed
> is going to be bad and I doubt openboot can boot off
them.

Thanks Jonathan.  I wasn't planning to boot from the USB
device, but I 
appreciate the mention.

The slow speed will be annoying, but possibly not a problem
for data 
transfers.  Finding an external drive that uses USB1 instead
- hm. Back to 
square 1.

John

On Tue, Dec 18, 2007 at 03:07:15PM -0800, John Costello
wrote:
> On Wed, 19 Dec 2007, Jonathan Gray wrote:
> > The on board USB on V100/V120/X1 is ohci aka USB1,
speed
> > is going to be bad and I doubt openboot can boot
off them.
> 
> Thanks Jonathan.  I wasn't planning to boot from the
USB device, but I 
> appreciate the mention.
> 
> The slow speed will be annoying, but possibly not a
problem for data 
> transfers.  Finding an external drive that uses USB1
instead - hm. Back to 
> square 1.
> 
> John

USB2 drives should work fine, just at USB1 speeds.
If you had a PCI slot you could buy a cheap USB2
controller,
but I don't think the V100 has one.

On Tue, 18 Dec 2007 15:07:15 -0800 (PST)
John Costello <cosindeterminate.net> wrote:

> On Wed, 19 Dec 2007, Jonathan Gray wrote:
> > The on board USB on V100/V120/X1 is ohci aka USB1,
speed
> > is going to be bad and I doubt openboot can boot
off them.
> 
> Thanks Jonathan.  I wasn't planning to boot from the
USB device, but
> I appreciate the mention.
> 
> The slow speed will be annoying, but possibly not a
problem for data 
> transfers.  Finding an external drive that uses USB1
instead - hm.
> Back to square 1.

USB2 disk drives usually work OK in USB1 mode. But speed
will be
limited to 12Mb (normal transfer speed is around what 10Mb
Ethernet
provides).

> John

I just went through http://openb
sd.org/sparc64.html#hardware and
couldn't find any PCI-USB2 ( EHCI(4) ) adapters. I do not
even know if
any PCI slots are available in a V100, so that may not help
you further
anyway...

HTH

khaqq