On Thu, Apr 20, 2000 at 08:46:41AM -0600, Justin T. Gibbs wrote:
> >> What is the brand and type of this SCSI disk?
> >
> >ahc0: target 0 synchronous at 20.0MHz, offset = 0xf
> >ahc0: target 0 using tagged queuing
> >sd0 at scsibus0 target 0 lun 0: <QUANTUM, XP34550S, LXY1> SCSI2 0/direct fixed
> 
> You should upgrade this driver to LXY4.  The drive may hang under heavy
> tag load otherwise.

- How do I upgrade this driver to LXY4? I spent quite a while at
  www.quantum.com with no success other than finding "downloadable firmware"
  mentioned a lot in the sales doc. Not where from, or how to do it..
- I was having hangs on /usr/obj which is on sd1 which is
sd1 at scsibus0 target 2 lun 0: <QUANTUM, XP34550S, LXY4> SCSI2 0/direct fixed
  ie., already LXY4, or is it that it in turn is mounted on /usr which is on
  sd0 which is LXY1?

Anyway, with some hints, I'd like to try upgrading the driver and turn
tagged queuing back on...

Cheers,

Patrick

> Another issue with the Atlas drives is that they will return QUEUE FULL
> status if their write cache fills up even if you only have a 1 or 2
> commands outstanding.  This may be confusing the NetBSD SCSI layer.