On 8/18/2016 4:39 PM, Noel Chiappa wrote:
> From: Paul Koning
> A lot of Unibus/Qbus devices have "floating CSRs" which means they
> don't have fixed address assignments. Instead, the correct address is
> based on a set of rules, which puts devices in an ordered list and
> assigns addresses in sequence. .. If you get the address wrong, the
> system will see the device as the wrong type
What about if you have a series of devices (A, B, C, D, E), assigned addresses
in the correct order, and then you remove C from the system; will the software
stop probing for more devices when it gets to C (ie. D and E, although still
plugged in, will not be seen)?
Noel
The microvax has the following boards installed:
CPU - KA630
Memory - Clearpoint (8MB)
Memory - DEC MS630 (2MB)
DHV11
TQK50
Viking SCSI controller
DEC - RQDX2 (CSR set for 2nd position)
There are 2 grant continuity boards installed also.
When I boot VMS 5.5 -
Welcome to VAX/VMS V5.5
Username: SYSTEM
Password:
Welcome to VAX/VMS version V5.5
Last interactive login on Wednesday, 17-AUG-2016 17:40
$ show dev
Device Device Error Volume Free Trans Mnt
Name Status Count Label Blocks Count Cnt
DUA0: Online 0
DUA1: Mounted 0 VAXVMSV055 1954647 126 1
DUB0: Online 0
DUB1: Online 0
Device Device Error
Name Status Count
FTA0: Offline 0
OPA0: Online 0
Device Device Error
Name Status Count
PTA0: Online 1
PUA0: Online 1
PUB0: Online 1
WSA0: Offline 0
When I boot VMS 7.2 -
Welcome to OpenVMS (TM) VAX Operating System, Version V7.2
Username: system
Password:
Welcome to OpenVMS (TM) VAX Operating System, Version V7.2
Last interactive login on Wednesday, 17-AUG-2016 17:45
$ show dev
Device Device Error Volume Free Trans Mnt
Name Status Count Label Blocks Count Cnt
MV2$DUA0: Mounted 0 OVMSVAXSYS 1858635 138 1
MV2$DUA1: Online 0
MV2$DUB0: Online 0
MV2$DUB1: Online 0
Device Device Error
Name Status Count
FTA0: Offline 0
OPA0: Online 0
Device Device Error
Name Status Count
MPA0: Offline 0
PTA0: Online 1
PUA0: Online 1
PUB0: Online 1
I swear that when I first installed VMS the DHV11 ports showed up in the
show dev list on the MicroVax II.
The TQK50 controller (I have 2) were put into a MicroVax 4000 and that
Vax saw each board, so I don't think the boards are bad.
