2 Jun
2001
2 Jun
'01
2:20 p.m.
From: Jonathan Engdahl <engdahl(a)cle.ab.com>
Why are you bothering with an old PDP-11/23? There
are much faster
systems that are readily available and since you have ONLY four serial
channels (I presume that you are using an M8043/DLV11-J module),
why would you not switch to a faster, more capable system?
Well, faster than what and more capable thant what?
I'd be willing to trade an 11/23 system for a Qbus
SCSI card that will
work
with 2.11BSD on the 11/53. But I'm getting ahead of
myself -- I'm not
ready
Good luck as far as I know 2.11 didn't have native support for SCSI. Not
to say you couldn't write your own driver. However when 2.11 was current
SCSI was still called SASI and likely not found on most PDP-11s.
Allison
2 Jun
2 Jun
9:28 p.m.
On 2 Jun, ajp166 wrote:
[...]
Most Qbus SCSI adapters emulate MSCP. Thats very nice. You can use any
SCSI disk with any OS that has a MSCP driver. And many PDP11 OSes have
a MSCP driver, as this is needed for popular adapters like the RQDXx,
KDA50, UDA50, KFQSA, ... My Dilog DQ706A e.g. emulates a KDA50 and maps
every SCSI disk or CDROM to a RA80 (with different size).
--
tschuess,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz
I'd be
willing to trade an 11/23 system for a Qbus SCSI card that will
work with 2.11BSD on the 11/53.
Good luck as far as I know 2.11 didn't have
native support for SCSI.
8603
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ajp166＠bellatlantic.net -
jkunz＠unixag-kl.fh-kl.de