On Feb 8, 2012, at 1:14 PM, Glen Slick wrote:
On Feb 8, 2012 8:49 AM, "Kevin
Reynolds"<tpresence at hotmail.com> wrote:
Can I put in a SCSI controller on the QBUS of a microvax II or III? I
really want
to keep the QBUS as it is entirely different than everything
else I have. Do you know if there is SCSI support inVMS 5.2?
Kevin
You are not really concerned about native SCSI support but rather MSCP
(disk) and TMSCP (tape). If the OS supports an RQDX controller it should
support an MSCP SCSI controller such as the usual CMD CQD Q-bus SCSI
controllers.
To my knowledge, VMS doesn't really even see past the MSCP at all; there's
not much way it could distinguish between a SCSI disk on a CQD-220 and an
MFM disk on an RDQX3.
I can confirm that this is indeed the case. Most will look like an
RA81 or similar. (same MSCP interface, same registers etc)
-Dave
--
Dave McGuire
New Kensington, PA