4.8-RELEASE, Ultra320 and SMP

[Nate Lawson]

> Tom Munro Glass wrote:
> > Having followed the thread "SCSI, SMP, and Supermicro, problems!" this seems
> > to be yet another example of 4.8-R not running with Ultra320 and SMP. OK, in
> > this case it may be due a faulty motherboard, but there seem to be an awful
> > lot of messages about this type of problem.
> >
> > Thanks Justin for confirming in another thread that Ultra320 should work with
> > 4.8-R providing the drives have the latest firmware.
> >
> > So is anyone out there actually using 4.8-R, Ultra320 and SMP? If so, what
> > hardware are you running it on? I've searched mailing lists and the web, and
> > I can't find any examples of this type of system. It seems to me that the
> > HARDWARE.TXT document would be much more useful if it contained a list of
> > motherboards/drives that are known to work, even though the list would never
> > be totally up to date.
>
> On Thu, 2 Oct 2003, nicholas harteau wrote:
> I'm running some brand new Dell 2650s with both single
> processor/hyperthreaded Xeons and dual processor/hyperthreaded Xeons (4
> logical processors total) with U320 drives via the aac/PERC driver.  I
> guess this doesn't technically count as U320, as the hardware raid
> controller masks this from the OS.
>
> However, the machines have been running fine on 4.8-RELEASE-p10

I think the underlying commonality has been SMP, ahd(4), and packetized
protocol.  Also, the disk drive firmware has been mentioned as an issue.
The easiest way to diagnose the problem is to disable the packetized
protocol in the BIOS and see if it fixes things.

-Nate