>"Zane H. Healy" wrote:
> >I've just aquired a tested working Emulex UC17 Unibus SCSI host interface
> >from a dealer for $50... don't know if I'm crazy paying so much for old
> >Unibus or not!
> No, you're not crazy! You just got an AMAZING deal!
Jerome Fine replies:
I agree! While I have not kept track of Unibus prices, Qbus prices
usually have an extra zero - on the right of course. And that would
probably still be an excellent deal. Unibus prices are probably a bit
higher if anything.
For some reason, host adapters for both Qbus and Unibus PDP-11
and VAX have held their value for a long time. And now that the
supply of most parts is so low, even though demand has fallen, the
price seems to be rising.
> >Question is, does anyone have any observations as to any special
> >requirements such a card might have? Long time since I've played with any
> >Emulex... any reason why it shouldn't work in really ancient hardware, such
> >as my 11/20?... something appeals to me about putting a SCSI disk in such
> >>an ancient device!
> Unfortunatly the manuals on my FTP site look to be for the UC07/08, not the
> UC17. Also, I've not heard of anyone putting SCSI on such an old PDP-11,
> it will be interesting to hear what your results are. On problem I can
> think of is that you'll probably have to toggle in an MSCP bootstrap.
If you also have a standard 8" floppy drive, RX01 or even RX02, then
RT-11 allows you to booth MSCP in V5.03 after you boot the floppy.
However, PLEASE ask someone who knows about the PDP-11/20
if the Unibus backplane can take the UC17!!! The Unibus backplane
sometimes had "interesting" aspects for early models.
> Please let us know how this goes, like I said, it will be interesting to know.
LIKEWISE!!!!!!
Sincerely yours,
Jerome Fine
--
If you attempted to send a reply and the original e-mail
address has been discontinued due a high volume of junk
e-mail, then the semi-permanent e-mail address can be
obtained by replacing the four characters preceding the
'at' with the four digits of the current year.
Received on Thu Dec 12 2002 - 20:36:00 GMT