7 Jan
2004
7 Jan
'04
8:17 p.m.
I have read all the posts very carefully over the last few days. Because Vaxen are not my
specialty
I have to rely on other people's expertise in purchasing hardware. There seemed to be
some debate
as to whether the KZQSA can be used or not for hard drives. Has anyone else reading this
list
managed to conclude whether this will work or not? Will it fit in a BA23 cabnet? Will an
RZ74 work
with the MicroVax II if the board fits and is suitably configured?
Thank you for a very interesting read about older DEC equipment.
Bradley Slavik
8 Jan
8 Jan
2:05 a.m.
hardware. There seemed to be some debate
as to whether the KZQSA can be used or not for hard drives.
Has anyone else reading this list
managed to conclude whether this will work or not? Will it
fit in a BA23 cabnet? Will an RZ74 work
with the MicroVax II if the board fits and is suitably configured?
You can use the KZQSA for disks but it was never supported or
recommended because it was too slow to be useful (or at
least OpenVMS felt that way). AFAIK, it does work.
Whether you can boot off it or not depends on your systems
console firmware.
All the KZQSAs I ever saw came with the S-box style handles.
This means that it will not work in a BA23 or BA123 case. It
was designed for the BA200 series.
Antonio
--
---------------
Antonio Carlini arcarlini(a)iee.org
9:05 p.m.
Antonio Carlini wrote:
The non-S-box version does exist though... I have one. According to
the field guide, M5976-AA has the board spine with straight handles,
and M5976-SA is S-box.
Still, it seems only useful with VMS. I experimented with it in an MV-II
and the latest openVMS version at the time. I attached a CD-rom and
also a SCSI disk. I don't know VMS at all and so didn't pursue it any
further.
-chuck
hardware. There
seemed to be some debate
as to whether the KZQSA can be used or not for hard drives.
Has anyone else reading this list
managed to conclude whether this will work or not? Will it
fit in a BA23 cabnet? Will an RZ74 work
with the MicroVax II if the board fits and is suitably configured?
You can use the KZQSA for disks but it was never supported or
recommended because it was too slow to be useful (or at
least OpenVMS felt that way). AFAIK, it does work.
Whether you can boot off it or not depends on your systems
console firmware.
All the KZQSAs I ever saw came with the S-box style handles.
This means that it will not work in a BA23 or BA123 case. It
was designed for the BA200 series.
Antonio
9 Jan
9 Jan
12:55 a.m.
On Thu, Jan 08, 2004 at 10:05:29PM -0500, Charles H. Dickman wrote:
The non-S-box version does exist though... I have one.
According to
the field guide, M5976-AA has the board spine with straight handles,
and M5976-SA is S-box.
Nice. I have no S-boxen, just BA-23s and a couple of BA-123s (I should
fix that, though, as I have a KDJ11 board with an S-box handle (from a
communications server)).
Still, it seems only useful with VMS. I experimented
with it in an MV-II
and the latest openVMS version at the time. I attached a CD-rom and
also a SCSI disk. I don't know VMS at all and so didn't pursue it any
further.
Is there enough extant documentation to write a PDP-11 driver? I'd
be thinking of 2BSD or RT-11 as a first stab. A bootstrap might be
an issue (to toggle in), but even a SCSI data disk on a PDP-11 would
be nice.
I wonder how much work it would be to add the KZQSA to SIMH? At the
moment, I'm a little far from any real 16-bit hardware (all I have with
me is 12-bit ;-)
-ethan
P.S. - of course, all this is predicated on the KZQSA being substantially
cheaper than laying hands on an MSCP SCSI controller.
--
Ethan Dicks, A-130-S Current South Pole Weather at 09-Jan-2004 06:50 Z
South Pole Station
PSC 468 Box 400 Temp -11.6 F (-24.2 C) Windchill -34.4 F (-36.9 C)
APO AP 96598 Wind 8.30 kts Grid 354 Barometer 686.7 mb (10373 ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html
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