Digital PDFs

EK-386AA-TS-1

March 1990

43 pages

Original

1.5MB

Document:	VAX 4000 Troubleshooting and Diagnostics
Order Number:	EK-386AA-TS
Revision:	1
Pages:	43
Original Filename:

OCR Text

VAX 4000
•

Troubleshooting and Diagnostics

Order Number: EK--386AA-T5-001

VAX 4000 Troubleshooting
and Diagnostics
Order Number EK-386AA-TS-001

digital equipment corporation
maynard, massachusetts

First Printing, March 1990
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that may appear in
this document.
The software, if any, described in this document is furnished under a license and may be used
or copied only in accordance with the terms of such license. No responsibility is assumed
for the use or reliability of software or equipment that is not supplied by Digital Equipment
Corporation or its affiliated companies.
Restricted Rights: Use, duplication or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (c)(l)(ii) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1990. All rights reserved.
Printed in U.S.A.
The Reader's Comments form at the end of this document requests your critical evaluation to
assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation.
COMPACTape
DDCMP
DEC
DEC direct
DECnet
DECserver
DEC system 5400
DECUS
DECwriter
DELNI
DELQA

DEQNA
DESTA
DSSI
!VIS
MicroVAX
PDP
Professional
Q-bus
ReGIS
RQDX
TbinWire

ULTRIX
UNmUS
VAX
VAX 4000
VAXcluster
VAX DOCUMENT
VAXELN
VAXlab

VMS
VT

~DmDDmDTU

FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio
frequency energy. The equipment has been type tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed
to provide reasonable protection against such radio frequency interfere:lce when operated in
a commercial environment. Operation of this equipment in a residential area may cause
interference, in which case the user at his own expense may be required to take measures to
correct the interference.
51284

This document was prepared using VAX DOCUMENT, Version 1.2.

Contents
Preface

Chapter 1 Troubleshooting During Power-On
1.1
1.2

Autobooting the VAX 4000 System. . . . . . . . . . . . . . . . . . . . .
Troubleshooting Power-On Problems. . . . . . . . . . . . . . . . . . .

1-1
1-1

Chapter 2 Troubleshooting During Normal Operation
Chapter 3

Running the MicroVAX Diagnostic Monitor (MDM)

3.1
Preparing to Run MDM . . . . . . . . . . . . . . . .. . . . . . . . . . . . . 3-2
3.1.1
Preparing to Run MDM on Diskless or Tapeless Systems. 3-2
3.1.2
Preparing to Run MDM on RF-Series ISA or Hard Disk.. 3-2
3.1.3
Preparing to Run MDM on a Dual-Host System. . . . . . .. 3-3
3.1.3.1
Preparing to Run MDM on a Dual-Host System with
One Tape Drive ............................... 3-3
3.1.3.2
Preparing to Run MDM on a Dual-Host System with
Two Tape Drives .............................. 3-4
3.2
Starting MDM . . . . . . . . . . . . . . . . . . . . . . .. ........... 3-5
3.2.1
TK70 Instructions ............................... 3-5
3.2.1.1
Booting MDM Manually. . . . . . . . . . . . . . . . . . . . . . . .. 3-5
3.2.1.2
Booting MDM Using Autoboot. . . . . . . . . . . . . . . . . . .. 3-6
3.3
MDM Introductory Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.4 Main Menu Options. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 3-7
3.4.1
Test the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3--8
3.4.2
Display System Configuration and Devices. . . . . . . . . . . . 3-9
3.4.3
Display the System Utilities Menu .................. 3-12
3.4.3.1
IOADDRES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-13
3.4.4
Update Drive Unit Number for RRD40 . . . . . . . . . . . . . .. 3-13

iii

3.4.5
Display the Connect/Ignore Menu. . . . . . . . . . . . . . . . . .. 3-13
3.4.6
Select Single Device Tests ......................... 3-14
3.5 Exiting MDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-16

Appendix A

VAX 4000 Controls and Indicators

Index
Figures
3-1
3-2
3-3
3-4
3-5
3-6
3-7
A-l
A-2

The Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
Example of an Unsuccessful Test. . . . . . . . . . . . . . . . . . . . . .
System Configuration and Devices Screen. . . . . . . . . . . . . ..
Sample System Utilities Menu. . . . . . . . . . . . . . . . . . . . . . ..
The Single Device Tests Menu . . . . . . . . . . . . . . . . . . . . . . ..
Example of a Successful Test. . . . . . . . . . . . . . . . . . . . . . . ..
Example of an Unsuccessful Test. . . . . . . . . . . . . . . . . . . . ..
VAX 4000 Controls and Indicators-Sheet 1 of 2 . . . . . . . . ..
VAX 4000 Controls and Indicators-Sheet 2 of 2 . . . . . . . . ..

3-7
3-9
3-10
3-13
3-14
3-15
3-15
A-2
A-3

Tables
1-1

2-1

Troubleshooting Power-On Problems. . . . . . . . . . . . . . . . . . .
Troubleshooting Operation Problems. . . . . . . . . . . . . . . . . ..

1-2

2-1

Preface
Troubleshooting is the process of isolating and diagnosing problems with
your system. When your system does not operate as described in Operation,
use the information in this guide to diagnose the problem.
Using the diagram in Appendix A, follow the troubleshooting procedures
recommended in this guide.
This manual contains three chapters:
•

Chapter 1 describes problems you may experience at power-on and
corrective actions.

•

Chapter 2 describes problems you may have during normal operation
of your system and corrective actions.

•

Chapter 3 describes the MicroVAX. Diagnostic Monitor (MDM), a
diagnostic tool you can use to test your system periodically or to isolate
a particular problem.

•

Appendix A contains a diagram showing the location of the controls and
indicators.

The troubleshooting techniques described in this manual do not identify all
possible problems with your system, nor do the actions suggested remedy
all problems. If the actions suggested do not solve the problem, call your
Digital service representative.
NOTE: You will find a Glossary in the Operation manual to help with word
definitions and acronyms.

Conventions
The following conventions are used in this book:
Convention

Meaning
A symbol denoting a terminal key used in text and examples in this book.
For example, !Break! indicates that you press the Break key on your terminal
keypad. !Return! indicates that you press the Return key on your terminal
keypad.
A symbol indicating that you hold down the Ctrl key while you press the
Ckey.

BOLD

This bold type indicates user input. For example:

»> BOOT MOAO
This line shows that the user must type BOOT MUAO at the console
prompt.

NOTE

Provides general information about the current topic.

CAUfION

Provides information to prevent damage to equipment or software.

WARNING

Provides information to prevent personal injury.

Chapter 1

Troubleshooting During Power-On
When you power on your system, the VAX. processor performs a series of
self-tests and start-up routines. After successful completion of the self-tests,
if the Break EnablelDisable switch is set to disable, the system attempts
to autoboot system software.

1.1 Autobooting the VAX 4000 System
The VAX. 4000 system attempts to boot automatically (autoboot) from a
specified drive when you have entered the Set Boot command (SET BOOT
device name) from console mode. The system continues to boot from the
specified device each time it is powered on until you specify differently by
entering the Set Boot command again.
If you have not entered the Set Boot command, the system boots
automatically from the Ethernet port, EZAO.

1.2 Troubleshooting Power-On Problems
If you do not observe the correct power-on and boot sequence responses,
refer to the descriptions of problems and corrective actions in Table 1-1.
If the actions listed do not solve the problem, call your Digital service
representative.
NOTE: Table 1-1 occasionally recommends that you run MDM as a service
tool to help diagnose problems. Refer to Chapter 3 of this manual for
instructions on using MDM.

Troubleshooting During Power-On

1-1

Table 1-1: Troubleshooting Power-On Problems
Problem

Possible Cause

Corrective Action

Problems During Self-Tests
No response when the
power switch is turned
on (AC Present indicator is not lit).

System is not plugged
in.

Set the power switch to O. Plug in the
system. Set the power switch to 1.

No power at the wall
outlet.

Use a different wall outlet, or check the
circuit breaker controlling power to the
wall outlet.

Circuit breaker(s) (which
is the power switch) has
tripped (is in position 0).

Set the power switch to position 1. If
the circuit breaker{s) trips again, call
your Digital service representative.

Power cable is incorrectly Set the power switch to O. Check that
installed.
the cable is fully seated in the socket.
Set the power switch to 1.
AC Present indicator is
lit, DC OK is not lit.

Power supply or module
failure.

Call your Digital service representative.

The system has power
(AC Present indicator is
lit), but nothing displays
on the console terminal.

Console terminal is turned Turn on the console terminal.
off.

Console terminal is off
line.

Put the terminal on line.
Refer
to the terminal documentation for
instructions.

Console terminal cable
is incorrectly installed.

Make sure the cable is installed
properly at both ends.

Console terminal setup has not been done
correctly.

Reread the section, Install the Console
Terminal, in your Installation manual.

Baud rate setting of the
system and the terminal
do not match.

Set the terminal baud rate to match
the system. The normal operating
setting is 9600.

Power-On Mode switch
on the console module is
set to T.

Set the switch to Run (indicated by an
arrow).

Terminal is defective.

Turn off terminal and turn it on again
to see if it passes its self-tests. If it
fails self-tests, call your Digital service
representative.

1-2 VAX 4000 Troubleshooting and DiagnostiCS

Table 1-1 (Cont.): Troubleshooting Power-On Problems
Problem

Possible Cause

Corrective Action

The system has power
(AC Present and DC OK
indicators are lit), but
nothing is displayed on
the console terminal.

Problem with CPU.

Call your Digital service representative.

The system has power (DC Problem with CPU.
OK is lit), but nothing is
displayed on the console
terminal. The LED on
the console module displays an E or F.

Call your Digital service representative.

The self-tests halted and
an error message or error summary displays on
the console terminal.

The system detected an
error while running its
self-tests.

Copy the number following the question mark in the error message or summary and call your Digital service representative.

The Language Selection
Menu does not appear.

The baud rate on the console terminal is different
from the baud rate on
the system.

Check that the baud rate on the
console terminal and on the system is
set to 9600.

The terminal does not sup- Obtain a terminal that supports MCS.
port the multi-national
character set (MeS).
General Problems During Boot Sequence
The system returns to
the BOOT prompt after
four minutes.

Sanity timer is enabled
on the DESQA module.

Disable sanity timer. Refer to DESQA
Option Installation Guide.

Instead of automatically
starting, system poweron results in >>> being
displayed on the console
terminal.

Break EnablelDisable
switch is set to enable.
The system is in console
mode.

To autoboot, set the Break Enable!
Disable switch (located on the console
module) to disable (down). Reset the
system by pressing the Restart button,
located on the System Control Panel.
If you prefer to boot manually from
console mode, use the BOOT command
(»>BOOT device-name).

The message "154
No bootable media was
RETRY" is displayed twice found.
on the console terminal.

See actions listed in the subsequent
sections of this table for the boot device
you are using.

Troubleshooting During Power-On

1-3

Table 1-1 (Cont.): Troubleshooting Power-On Problems
Problem

Possible Cause

Corrective Action

The countdown does not
continue from 2 through
0, even though the Break
EnablelDisable switch is
set to disable.

The system cannot load
system software from either a disk drive, a tape
drive, or the Ethernet.

See actions listed in the subsequent
sections of this table for the boot device
you are using.

Problems Booting from an RF-Series Integrated Storage Assembly (lSA)

The countdown continues The system disk is writefrom 2 through 0, how- protected. The Writeever, the console termi- Protect button is in (glows
nal displays operating sys- orange).
tem error messages.

Push in and release the Write-Protect
button to the out (unlit) position. Make
sure you know which Write-Protect
button corresponds to the system disk.

The countdown continues The system disk contains
from 2 through 0, how- no bootable system softever, the console termi- ware.
nal displays console error messages.

Install system software.

The countdown does not
continue from 2 through
0, even though the Break
Enable!Disable switch is
set to disable.

The system disk is off'
line. (The Ready button
is in the in position.)

Press the appropriate Ready button on
the system disk to the out position.
Press the RestartlRun button on the
SCPo

The Fault indicator is lit
or begins to flash.

A problem exists with
the controller or ISA.

If the Fault indicator stops flashing,
your system may have corrected itself.
Run the MDM software as described
in Chapter 3. If the Fault indicator
remains lit, call your Digital service
representative.

Problems Booting from a Tape Cartridge

System does not boot (the No tape cartridge in the
countdown does not con- tape drive.
tinue from 2 to 0) or boots
from another device (the
wrong software is displayed
on the console terminal).

Insert a cartridge containing system
software into the tape drive.

1-4 VAX 4000 Troubleshooting and Diagnostics

Table 1-1 (Cont.): Troubleshooting Power-On Problems
Problem

Possible Cause

Corrective Action

Fixed-disk drive is on
line. Your system starts
from the fixed disk, if it
is on line.

Place the fixed disk off line.

Tape is not bootable (does
not contain a bootstrap
program).

Use a tape containing a bootstrap
program to start system software.

Tape is worn or damaged.

Try another tape cartridge.

A problem exists with
the controller or tape
drive.

Call your Digital representative.

Troubleshooting During Power-On

1-5

Chapter 2

Troubleshooting During Normal
Operation
Problems that occur during normal operation of your system may result
from a defect in the system, from faulty settings, or from incorrect
procedures.
Table 2-1 lists problems, possible causes, and corrective actions. If
the actions listed do not solve the problem, call your Digital service
representative.

Table 2-1: Troubleshooting Operation Problems
Problem

Possible Cause

Corrective Action

The system has power
(the DC OK is lit), but
nothing displays on the
console terminal. The
LED on the console
module displays an E or
F.

Problem with CPU.

Call your Digital service representative.

System loses power during operation. The AC
Present indicator is not
lit.

The system is not plugged Set the power switch to O. Plug in the
into the wall outlet.
system. Set the power switch to 1.

System Problems

No power at the wall
outlet.

Use a different wall outlet, or check the
circuit breaker controlling power to the
wall outlet.

Power switch has tripped. Set the power switch to 1. If it
trips again, call your Digital service
representative.
Power cable is incorrectly Set the power switch to O. Check that
installed.
the cable is fully seated in the socket.
Set the power switch to 1.

Troubleshooting During Normal Operation

2-1

Table 2-1 (Cont.): Troubleshooting Operation Problems
Problem

Possible Cause

Corrective Action

System loses power during operation, the DC OK
is not lit.

The power supply has
failed.

Check the DC OK light(s). An unlit DC
OK indicates a power supply problem.
Turn off your system and call your
Digital service representative.

System loses power during operation, the power
switch is off (position 0).

The power switch, which
also acts as the system
circuit breaker, has
tripped.

To reset the circuit breaker, turn power
switch to off (position 0). Wait 30
seconds. Set switch to on (position
1). If switch trips off again, call your
Digital service representative.

The Over Temperature
Condition indicator is
lit, system loses power
during operation.

The system is automatically shut down to prevent overheating.

Make sure vents are clear; make sure
system is not near a heat source; make
sure the room temperature is within
the guidelines in the VAX 4000 Site
Preparation. Tum power switch to off.
Wait five minutes, then turn switch
on. If switch trips off again, call your
Digital service representative.

System loses power during operation. The Fan
Failure indicator is lit.

One of the two fans has
failed.

Call your Digital service representative.

The IBreak 1key or CtrllP Type "c" and press IReturn I.
To
System halts unexpectedly during normal op- on the console terminal prevent recurrences, set the Break
eration. The console mode was pressed inadvertently. EnablelDisable switch on the console
prompt> > > is displayed The Hold Screen key on module to disable (position 0) and press
on the console terminal. the console terminal was the Run/Ready button to restart the
pressed inadvertently.
system. Note that pressing Restart
The console terminal was causes the system to reboot.
momentarily turned off
or disconnected.
System suddenly reboots.

The Run/Ready button
Let rebooting run to completion. To
was pressed inadvertently. prevent recurrences, you can disable
the RestartlRun button. Call your Digital service representative to perform
this service.

RF-Series Integrated Storage Assembly (lSA) Problems
ISA write error message
is displayed.

ISA is write-protected.
(Wri te-Protect button
glows orange).

Press and release Write-Protect button
(not lit).

2-2 VAX 4000 Troubleshooting and Diagnostics

(

Table 2-1 (Cont.): Troubleshooting Operation Problems
Problem

Possible Cause

Corrective Action

The Fault indicator is lit
or begins to flash.

A problem exists with
the controller or ISA.

If Fault indicator stops flashing, the
system may have corrected itself. Run
the MDM software as described in
Chapter 3. If Fault remains lit, call
your Digital service representative.

ISA read error message
is displayed.

ISA is not spun-up be- Press the Ready button to the out
cause the RunlReady but- position. When the green indicator
ton is in the in position. light comes on, the ISA is available for
use.

TK70 Tape Drive Problems
Green light blinks rapidly Tape cartridge leader is
after you insert the tape. defective.

Pull the handle open and remove the
cartridge. Use another cartridge.

Orange, yellow, and green A problem with the drive.
lights blink in unison.

Press the Unload button once. If the
orange and green lights go out and
the yellow light blinks, the cartridge
is unloading. When the green light
comes on and you hear the beep,
remove the tape cartridge. If all three
lights continue to blink after you press
the Unload button, the fault is not
cleared. Do not try to remove the
cartridge. Call your Digital service
representative.

Handle does not move.

Power-on test is still in
progress.

If you are trying to insert a cartridge,
wait for the orange and yellow lights to
go off and the green light to remain on
steadily. Then try again.

Tape drive is active.

Do not attempt to move the handle
while the yellow light is on.

Handle does not lock.

Cartridge is not inserted
properly.

Reinsert the tape cartridge. If the
problem persists, call your Digital
service representative.

Cartridge does not unload.

Unload button is not
working properly.

Try unloading the cartridge with a
software command.
Refer to your
system software manuals.

TK70 passes power-on
self-test but does not
work.

The controller may be
bad, or the connection
between the drive and
the controller may be
loose.

Call your Digital service representative.

Troubleshooting During Normal Operation

2-3

Chapter 3

Running the MicroVAX Diagnostic
Monitor (MOM)
The MicroVAX Diagnostic Monitor (MDM) is a software package containing
diagnostic tests designed to isolate and identify faults in your VAX 4000
system. MDM also permits you to display your system configuration and
test how devices work together. The diagnostic tests are packaged with
your system on a tape cartridge (labeled MV DIAG CUST TKSO). MDM
operating instructions begin in Section 3.2.
CAUTION: If your system is connected to a cluster, notify your cluster
manager before halting the system to load MDM.

You generally run MDM in three situations:
•

Before you install system software on a new system

•

When you receive an error message or experience a problem with your
system

•

When you want to test your system periodically to ensure that all
components are operating correctly

How the MOM Tests Work

MDM tests individual internal devices in your system, however, it performs
limited diagnostics:
•

MDM performs reads from each drive and checks each controller. The
customer tests do not write to the drives as writing to the drives could
destroy data.
NOTE: MDM will test a tape drive or diskette drive only when the media
(tape or diskette) is inserted in the drive.

•

MDM checks only devices and not the connections or lines between
peripheral devices and the system.

•

MDM does not check each device as thoroughly as the service diagnostic
tests, which are described below.

Running the MicroVAX Diagnostic Monitor (MOM)

3-1

If devices pass the customer tests but you still experience problems, contact
a Digital service representative for further testing.
Customers requiring more complete diagnostic testing should purchase the
MicroVAX Maintenance Kit. The maintenance kit includes the system
maintenance guide and the service diagnostic tests. The MDM version
that you receive with your system is a subset of the service version.
NOTE: Only qualified service personnel should use the service diagnostic

tests.

3.1 Preparing to Run MOM
Running MDM on certain systems requires additional or special procedures.
Read Section 3.1.1 if you plan to run MDM on a diskless or tapeless system.
Read Section 3.1.2 if you plan to install MDM on a hard disk or RF-series
Integrated Storage Assembly (lSA). Read Section 3.1.3 if you plan to run
MDM on a dual-host system.

3.1.1 Preparing to Run MDM on Diskless or Tapeless
Systems
If you have a diskless or tapeless system that is part of a local area
network (LAN), you must obtain the MicroVAX Ethernet Server Customer
Diagnostics Kit. Run MDM using the diagnostics in the kit that is labeled
MV DIAG ENET CUST.

Refer to the Micro VAX Diagnostic Monitor Ethernet Server User's Guide at
this time. Once you have installed and down-line loaded MDM software,
refer again to this manual for specific instructions on running MDM.
NOTE: If you have a diskless or tapeless system that is not part of a local
area network (LAN), you cannot run MDM. 7b diagnose problems, call a
Digital service representative.

3.1.2 Preparing to Run MDM on RF-Series ISA or Hard Disk
MDM software can be installed on an RF -series ISA or hard-disk drive using
the MDM Hard Disk Kit. Installation of the MDM Hard Disk Kit requires
the completion of the "Diagnostic Software Installation Acknowledgment"
by the customer. See the MicroVAX Diagnostic Monitor Hard Disk User's
Guide for the licensing requirements and installation instructions.
NOTE: The MDM Hard Disk Kit is required for dual-host systems where
one host is a tapeless system.

3-2 VAX 4000 Troubleshooting and Diagnostics

(

3.1.3 Preparing to Run MOM on a Dual-Host System
In a dual-host configuration, two systems in the same VAXcluster share
their ISAs through a Digital Storage System Interconnect (DSSI) bus. Each
system can directly access any of the ISAs in either system; this can include
a shared common system disk.
Before running MDM diagnostics on a dual-host system, your system must
be properly configured (systems ordered as dual-host systems are properly
configured at the factory) and the DSSI cable connecting the two hosts must
be in place.
Diagnostics must be performed separately for each host. The procedure
for running diagnostics differs depending on whether one host is a tapeless
system (no tape drive) or each host has its own tape drive. Use the following
instructions to prepare to run diagnostics in a dual-host system with one
tape drive. Use the instructions in the section after it to prepare to run
diagnostics in dual-host systems with a tape drive in each host.
3.1.3.1 Preparing to Run MOM on a Dual-Host System with One Tape
Drive
To run MDM on dual-host systems with one tape drive (one tapeless host)
you must use the MDM Hard Disk Kit. Complete the "Diagnostic Software
Installation Acknowledgment" and install the kit on an RF-series ISA
according to the procedure in the MicroVAX Diagnostic Monitor Hard Disk

User's Guide.
When the installation is complete, use the following procedure to run the
diagnostics:
1. If software is installed on the system, warn all users to log off
and perform system shutdown, as described in your system software
manuals. Turn off both hosts.

2. Set the Break EnablelDisable switch on the console module of each host
to enable (up). Turn on both hosts. If the hosts are already powered-on,
press Break.

Result: The system displays the console mode prompt on your terminal.
»>

3. Use the command BOOT/IOO DIAn (for KA670 CPU-based DSSI) or
BOOT/IOO DUAn (for K.FQSA-based DSSI), where n is the unit number
of the disk containing the MDM Hard Disk Kit.

Result: The system prompts for the bootfile:
Bootfile:

Running the MicroVAX Diagnostic Monitor (MOM)

3-3

Enter the name of the file image: [SYSO.SYSEXE]MDMSHA.SYS for
systems with on-board DSSI, or [SYSO.SYSEXE]MDM.SYS for systems
using the KFQSA storage adapter. Press IRETURN I to continue booting.
4. Run the diagnostics as described in Section 3.2.
5. When you have completed the tests on the first host, make sure
the Break EnablelDisable switch is set to enable (up) and press the
RestartlRun button on that same host. When the countdown completes
and the »> prompt is displayed, boot the diagnostics from the second
host using the commands described in steps 2 and 3, and run the
diagnostics as you did for the first host.

3.1.3.2 Preparing to Run MOM on a Dual-Host System with Two Tape
Drives

Run diagnostics on dual-host systems with two tape drives according to the
following procedure:
NOTE: You can also use the MDM Hard Disk Kit as described in the
previous section.
1.

If software is installed on the system, warn all users to log off
and perform system shutdown, as described in your system software
manuals. Turn off both hosts.

2. Make sure the Write-Protect switch on the tape cartridge containing
the MDM diagnostics is in the write-protect position.
3. Set the Break EnablelDisable switch on both hosts' console modules to
enable (up).
4. Turn on both hosts.

Result: The normal power-on countdown should appear on the console
terminal. Mter the countdown, you should see the »> prompt
indicating console mode.
5. Insert the tape cartridge containing the MDM software into the tape
drive in one host and lock it into place. On the same host, enter the
command BOOT MOAO to tell your system to load the MDM software from
the tape cartridge.
6. Run the diagnostics as described in Section 3.2.
7. When you have completed the tests on the first host, remove the tape
cartridge by following the procedure described in Operation. Press the
RestartlRun button on that same host. When the countdown completes
and the »> prompt is displayed, insert the tape cartridge into the tape
drive in the second host and lock it into place. Enter the command BOOT

3-4 VAX 4000 Troubleshooting and Diagnostics

MOAO to boot the tape and run the diagnostics as you did for the first

host.

3.2 Starting MOM
You must start the diagnostic tests differently for different media. If you
are booting MOM from a tape cartridge, read Section 3.2.1. If you are
booting MDM from an RF-series ISA fixed-disk drive, refer to the MicroVAX
Diagnostic Monitor Hard Disk User's Guide.
NOTE: Unless instructed to do so, do not change any settings or manipulate
devices while the tests are running. The diagnostic software interprets any
change of state as an error.

3.2.1 TK70 Instructions
Before you run the MOM software, be sure you understand the instructions
in your Operation manual (contained in this documentation kit) for using
the TK70 tape drive.
CAUTION: Make sure the tape cartridge is write-protected.

The diagnostics run the same way whether or not system software, such as
VMS or VAXELN, has been loaded. You can manually boot the diagnostic
software or use the autoboot feature to automatically boot the software. The
following sections explain how to boot MOM manually and automatically.
Follow the directions carefully for setting switches.
NOTE: If your system is part of a local area network (LAN), you may want
to reduce the time required to load MDM on each system by obtaining the
Micro VAX Ethernet Server Customer Diagnostics Kit. The kit enables you to
install MDM software on a host VMS operating system and down-line load
MDM to other systems that are part of the LAN, using the DE Cne t / Ethernet
network facilities. When MDM is down-line loaded to target systems from
a host system, the time required to load MDM is reduced significantly.
3.2.1.1 Booting MOM Manually
NOTE: Before booting MDM on a system with software installed, warn all
users to log off and perform system shutdown, as described in your system
software manuals.
1. Make sure the Write-Protect switch on the tape cartridge is in the write-

protect position.

Running the MicroVAX Diagnostic Monitor (MOM)

3-5

2. If your system contains system software, write-protect all disk drives
and RF-series ISAs.
3. Move the Break EnablelDisable switch on the console module to enable
(position 1).
4. Press the Restart button if the system is running or tum on the system
if the system is off.
5. When the green light on the tape drive glows steadily (if you are using
a TK70 tape drive, orange and yellow lights go out), insert the tape
cartridge containing the MDM software into the tape drive and lock it
into place.

Result: While you are inserting and loading the tape cartridge, the
normal power-on countdown should appear on the console terminal.
After the countdown, you should see the »> prompt indicating console
mode.
6. Use the command BOOT MUAO to tell your system to load the MDM
software from the tape cartridge. Loading the software takes several
minutes. A yellow indicator light on the tape drive flashes while loading
occurs. Section 3.3 describes the display you see when loading is
completed.
3.2.1.2 Booting MOM Using Autoboot
NOTE: Before booting MDM on a system with software installed, warn all

users to log off and perform system shutdown, as described in your system
software manuals.
1. Make sure the Write-Protect switch on the tape cartridge is in the writeprotect position.
2. Remove any removable disks and place all fixed-disk drives and RFseries ISAs off line.
3. Write-protect all disk drives and RF-series ISAs.
4. Turn off your system.
5. Move the Break EnablelDisable switch on the console module to disable
(position 0).
6. Turn on your system.
7. When the green light on the tape drive glows steadily, insert the tape
cartridge containing the MDM software into the tape drive and lock it
in place.

3-6

VAX 4000 Troubleshooting and Diagnostics

Result: While the system loads MDM, the power-on countdown appears
on the terminal. Loading the software takes several minutes. A yellow
indicator light on the tape drive flashes while loading occurs.
Section 3.3 describes the display you see when loading is completed.

NOTE: When loading is completed, place all RF-series IBAs on line. If the
IBAs are not on line, they cannot be tested completely.

3.3 MOM Introductory Screen
When MDM software is loaded, the MDM introductory screen is displayed.
Make sure the current date and time in the introductory display are correct.
If the date and time are correct, press 1Return 1 to continue. If incorrect, type
the correct date and time, using the format shown in the MDM introductory
screen display. For example, enter 1O-JAN-1990 02:30 and press IReturn I to
continue. The Main Menu appears. Section 3.4 describes options on the
Main Menu.

3.4 Main Menu Options
The Main Menu provides six options, as shown in Figure 3-1. Choose an
option by typing the number and pressing IReturn I.
Figure 3-1:
MAIN

The Main Menu

Release nnn

Version

xX.xx

1 - Test the System
2 - Display System Configuration and Devices
3 - Display the System Utilities Menu
4 - Display the Service Menu
5 - Display the Connect/Ignore Menu
6 - Select Single Device Tests
Type the number; then press the RETURN key. >

NOTE: The MDM release and version numbers are represented by nnn and
xx.xx in the sample screens provided throughout this chapter.
Option 4, "Display the Service Menu," is available only if you have
purchased the MicroVAX Maintenance Kit. The maintenance kit contains
service diagnostics and the system maintenance guide. Only qualified
service personnel should use the MicroVAX Maintenance Kit.

Running the MicroVAX Diagnostic Monitor (MDM)

3-7

The next five sections describe the remaining options on the Main Menu.

3.4.1 Test the System
The "Test the System" option runs a general test of the devices in the system
and how they work together. You can run the test at any time without
jeopardizing data.
When you select "Test the System," the diagnostics are prepared for testing.
If this is the first MDM option you have selected, the diagnostics are
automatically loaded. The loading process takes several minutes. When
preparations and loading are complete, you are prompted to presslReturnl. A
screen explaining the testing procedures then appears.
When you are ready to begin the test, press IReturn I. The system displays the
"Begin Device Tests."
As each device passes the test, it is listed on the screen.

NOTE: Because of the internal similarity of some communications options,
the diagnostic test sees these options as the same device. A DHVll and
DHQll appear the same to the diagnostic test. A generic device name,
DH-CXO, is listed for similar communications options. The last letter in
each device name differentiates among multiple devices of the same type.
For example, DH-CXOA indicates one communications option, DH-CXOB a
second, and so forth.
If a device fails the test, you receive a failure message.
Each failure message identifies the device being tested, when the failure
occurred, and the field-replaceable unit (FRU). Copy the failure message
and report it to your Digital service representative. Figure 3-2 shows an
example of an unsuccessful test.

3-8 VAX 4000 Troubleshooting and Diagnostics

(

Figure 3-2:

Example of an Unsuccessful Test

BEGIN FUNCTIONAL TEST
Device

Result

SGCA

FAILURE DETECTED

A failure was detected while testing the
OPTION: SGCA

Ethernet controller

The Field Replaceable Unit (FRU) identified is the:
Ethernet controller

If your system has serious problems, the following message may appear:
All devices disabled, no tests run.

Report the message to your Digital service representative.
When a failure message occurs, the testing stops.
When all devices pass the first part of the test, the exerciser tests begin.
These tests take about four minutes and test how the devices work together.
If the tests pass, you receive a success message.
At the end of the system test, press IReturn I to return to the Main Menu.
From the Main Menu you can either exit MDM by pressing the Restart
button located on the System Control Panel (SCP), or by pressing and then
releasing the Halt button located on the System Control Panel (SCP), or
you can choose one of the other options.

3.4.2 Display System Configuration and Devices
The ''Display System Configuration and Devices" screen identifies devices
recognized by the diagnostic software.
When you select "Display System Configuration and Devices," the
diagnostics are prepared for testing. If this is the first MDM option you
have selected, the diagnostics are automatically loaded. The loading process
takes several minutes. When the preparations and loading are complete,
you are prompted to press IReturn I.
When you press IReturn I, the configuration is displayed. Figure 3-3 shows a
sample system configuration and devices screen.

Running the MicroVAX Diagnostic Monitor (MOM)

3-9

Figure 3-3: System Configuration and Devices Screen
MAIN

Release nnn

Version

xx.xx

SYSTEM CONFIGURATION AND DEVICES
CPUA ... MicroVAX CPU
KA670-AA MC=02 FW=2.6
MEMA ... MicroVAX memory system
32 Megabytes. 65536 Pages.
MS670 ... 32MB memory module
PDIA ... SHAC DSSI Subsystem
SHAC Ver. 3.6
RF71
Unit #0, Dssi Disk, Online
RF71
Unit #1, Dssi Disk, Online
SGCA
Second Generation Ethernet Controller
SGEC
PDIB ... SHAC DSSI Subsystem
SHAC Ver. 3.6
No Dg TKA ... Diagnostic not loaded.
Press the RETURN key to return to the previous menu. >

Up to two lines of information are provided for each device. One line lists
the name of the device and gives a brief description, a second line may
indicate the revision level of the device. The revision level can refer to
hardware and/or microcode. For example, the KA670 CPU described in
Figure 3-3 is at revision 2 for microcode (MC=02).

3-10 VAX 4000 Troubleshooting and Diagnostics

Besides the general information listed for each device, more information
for specific devices may also be given. Some examples of this information
follows:
•

CPUA - Type of CPU, presence of a floating-point unit (FPU).

•

MEMA - Total amount of memory in megabytes and pages, number
and type of memory modules.

•

KFQSA - For systems with the KFQSA storage adapter, the type of
DSSI device and its unit number are displayed for each ISA.

•

KDA50-For units with the KDA50 controller, the unit number, drive
type, controller revision number.

•

PDIA - Embedded DSSI adapter for Bus O. The adapter is part of the
KA670 CPU.

•

DESQA - The Ethernet station address.

•

SGCA CPU.

•

PDIB - Embedded DSSI adapter for Bus 1. The adapter is part of the
KA670 CPU.

•

Communications devices modem control.

The onboard Ethernet controller which is part of the KA670

The type of device and whether it has

In addition to showing information about testable device options, MDM
displays messages indicating the presence of nontestable system devices.
If a device is physically present in the system but is not described under
the "System Configuration and Devices" display, one of the following two
messages can indicate the reason.
Message 1:
No Dg KAA ... Diagnostic not loaded

The ''No Dg" (no diagnostic) "KAA" (KA670 CPUA) message appears in place
of the device name because a diagnostic was not loaded for the CPUA. This
can happen when the media is not installed properly or the diagnostic is
not present on the media.
MDM displays a "No Dg" message for each Digital device present in the
system under these circumstances. For example, if MDM cannot find the
TK70 tape drive diagnostic, the message ''No Dg TKA" is displayed. TKA
indicates that the device is a TK tape drive.

Running the MicroVAX Diagnostic Monitor (MOM)

3-11

Message 2:
Unknown ... Diagnostic not loaded

The ''Unknown'' (unknown device) message indicates that a device not
recognizable to MDM has been attached to the system. The message
appears under the following circumstances:
•

A device is configured to a nonstandard CSR address.

•

A Digital device that has no diagnostic has been attached to the system.
This may occur if a device not supported on a VAX 4000 system has been
attached.

•

A non-Digital device has been attached to the system.

Once all devices have been listed, you can return to the Main Menu by
pressing 1Return I.
To exit MDM, press IBreak 1 or the Restart button on the SCPo

3.4.3 Display the System Utilities Menu
Choose "Display the System Utilities Menu" to display the System Utilities
Menu. If system utilities in addition to the "IOADDRES" option are
available for your system configuration, they are listed on the menu.
When you select this option, the diagnostics are prepared for testing. If this
is the first MDM option you have selected, the diagnostics are automatically
loaded. The loading process takes several minutes. When the preparations
and loading are complete, you are prompted to press IReturn I.
When you press IReturnl, the System Utilities Menu appears. Figure 3-4
shows a sample System Utilities Menu for a system with two RRD40/50
drives.
NOTE: If your system does not have an RRD40 /50 Optical Disk Subsystem,
only one option, IOADDRES, will be available.

3-12

VAX 4000 Troubleshooting and Diagnostics

Figure 3-4:

Sample System Utilities Menu

MAIN MENU

SYSTEM UTILITIES
Utility selections are:
1 - IOADDRES
2 - RRAA - Update drive unit number for RRD40 controller A.
3 - RRAB - Update drive unit number for RRD40 controller B.

Choose the option by typing the option number listed on the menu and
pressing IRetuml.

3.4.3.1 IOADDRES
NOTE: The c70ADDRES" option is intended for users of Industrial VAX
systems.
This option is described in detail in the Industrial VAX
Troubleshooting manual.
The "IOADDRES" option supplies a listing of standard Control and Status
Register (CSR) addresses and interrupt vectors that MDM uses in testing
devices. The first available CSR and interrupt vector for configuring devices
with a nonstandard address is also supplied.
The devices in your system were configured properly at the factory. Any
new options added to your system are configured properly in the field by a
Digital service representative.

3.4.4 Update Drive Unit Number for RRD40
This utility allows you to update the unit number for the RRD40
compact-disk subsystem. Refer to the RRD40 Disk Drive Owner's Manual
for instructions.

3.4.5 Display the Connect/Ignore Menu
NOTE: The c'Connect / Ignore Menu" is intended for users of Industrial VAX
systems. The options in this menu are described in detail in the Industrial
VAX Troubleshooting manual.

The "Connect/Ignore Menu" options allow you to customize MDM
diagnostics. You can load your own diagnostics to a particular device, as
well as load MDM diagnostics to a device with a nonstandard CSR address
and interrupt vector.

Running the MicroVAX Diagnostic Monitor (MOM)

3-13

3.4.6 Select Single Device Tests
The "Select Single Device Tests" option allows you to run tests for a single
device. A test of the device's individual circuits, called a "functional test," is
performed during the single device tests. The functional test is followed by
an "exerciser test" to ensure that the device as a whole is working properly.
When you select th~ Single Device Tests from the Main Menu, the
diagnostics are prepared for testing. If this is the first MDM option you
have selected, the diagnostics are automatically loaded. The loading process
takes several minutes.
When the preparations and loading are complete, you are prompted to press
A screen listing the devices included in your system is displayed.
Figure 3-5 shows an example of such a display.

IReturnl.

Figure 3-5: The Single Device Tests Menu
MAIN MENU
SELECT SINGLE DEVICE TEST

Release nnn

Version

xx.xx

Select the device number to be tested.
The functional tests
will be run followed by the exercisers for 4 minutes.
1 2 3 4 5 6 -

CPOA - MicroVAX CPO
MEMA - MicroVAX memory system
PDIA - SHAC DSSI Subsystem
SGCA - Second Generation Ethernet Controller
PDIB - SHAC DSSI Subsystem
No Dg TKA - Diagnostic not loaded.

Type the number; then press the RETURN key,
or type 0 and press the RETURN key to return to the Main Menu. >

NOTE: Because of the internal similarity of some communications options,
the diagnostic tests see these options as the same device. A DHV11 and
DHQll appear the same to the diagnostic test. A generic device name,
DH-CXO, is listed for similar communications options. The last letter in
each device name differentiates among multiple devices of the same type.
For example, DH-CXOA indicates one communications option, DH-CXOB a
second, and so forth.
Select a device for testing by typing the corresponding number and pressing
IRetuml.

When you press IReturn I, the system configures the device diagnostics and
testing begins. If the device passes the functional test, a message to that
effect is displayed, and the exerciser test begins. The exerciser tests run for

3-14 VAX 4000 Troubleshooting and Diagnostics

(

approximately four minutes. Figure 3-6 shows an example of a successful
test.
Figure 3-6:

Example of a Successful Test

BEGIN FUNCTIONAL TEST
Device

Result

CPUA . . . . . . . . . . . . . . . . . . . PASSED
BEGIN EXERCISER TEST
Results are reported at the end of the testing.
SINGLE DEVICE TEST PASSED

If a device fails the test, you receive a failure message. Each failure
message identifies the device being tested when the failure occurred and
the field-replaceable unit (FRU). Copy the failure message and report it to
your Digital service representative. Figure 3-7 shows an example of an
unsuccessful test.
Figure 3-7:

Example of an Unsuccessful Test

BEGIN FUNCTIONAL TEST
Device

Result

SGCA .•...............

FAILURE DETECTED

A failure was detected while testing the
OPTION: SGCA

Ethernet controller

The Field Replaceable Unit (FRU) identified is the:
Ethernet controller

When a failure message occurs, the testing stops.
Press IReturnl to return to the Single Device Menu for more testing.

To exit MDM, press \Break\ or the Restart button on the SCPO

Running the MicroVAX Diagnostic Monitor (MOM)

3-15

3.5 Exiting MOM
Exit MDM by doing one of the following:
•

Press IBreakl.

•

Press and then release the Halt button on the SCPo

•

Press the Restart button on the SCPo

Remove the tape cartridge, as explained in your Operation manual.
If you have run MDM on a new system, you are ready to install your system
software. Follow the instructions in your system software manuals. Set the
Write-Protect button to write-enable and install system software.
If you have run MDM on a system containing system software, you must
reboot your system software.
You can reboot your system software in one of two ways:
•

At the console mode prompt (»», use the command BOOT Dxxx,
where Dxxx is the device name of the fixed disk or RF -series ISA
containing your system software. Use DUxx if this is an RA-series
disk drive or an RF-series ISA (with the KFQSA storage adapter).
Use DIxx if this is an RF-series ISA (with the KA670 CPU). Mter
the system software is loaded, set the Break EnablelDisable switch
to disable (position 0), to avoid inadvertently halting the system by
pressing the IBreakl key.

•

Set the Break EnablelDisable switch to disable (position 0) and press
the Restart button. This causes your system to begin the power-on
sequence again and automatically load system software.

3-16 VAX 4000 Troubleshooting and Diagnostics

Appendix A

VAX 4000 Controls and Indicators
The diagrams in this appendix show the controls and indicators on the VAX.
4000 Model 300 system.

VAX 4000 Controls and Indicators

A-1

Figure A-1:

VAX 4000 Controls and Indicators--Sheet 1 of 2

System Control
Panel

y
!1

Over Temperature
Warning Indicator
DC OK Indicator

- - Halt Button
I

Restart Button

Power Supply
I~ Power Switch
o /~ AC Present Indicator

0D.

GJ~C DC OK Indicator

o~gy,~
1\
1'1

Fan Failure
Indicator

OVer Temperature
Condition Indicator

~MO

~powerBus

~ Connectors
-'--~- Power Cable

Connector

MLO-004050

A-2 VAX 4000 Troubleshooting and Diagnostics

Figure A-2:

VAX 4000 Controls and Indicators-Sheet 2 of 2

ISA Controls and Indicators

Bus Node
ID Plug

Fault Indicator

Console Module

III
II

Power-On -~-____

Mode Switch

III

'1€S) ~/f'I

~:~:ctR;~tCh ~: e~.
LED Display

OSSI
Connectors

Modular Jack

I I ;=~D~
l l J "'00 ~ _~ ,II

mr'
~IIIII
I
I; ~
0-I
1°

~ ::

'---

ModHied

Break Enable!
Disable Switch
Bus Node 10 Plugs

Eth.ernet Connector
SWitch
Standard Ethernet
Connector
ThinWire Ethernet
Connector

i I
MLO-004108

VAX 4000 Controls and Indicators

A-3

Index
A

Autobooting the VAX system, 1-1

Main Menu
of MicroVAX Diagnostic Monitor
(MDM),3-7
MDM Hard Disk Kit, 3-2
MicroVAX Diagnostic Monitor
(MDM)
description, 3-1
medium containing, 3-1
running, 3-1
starting, 3-5
when to run, 3-1
MicroVAX Ethernet Server Customer
Diagnostics Kit, 3-2

c
Connect/lgnore
option on the Main Menu, 3-13

D
Diskless or tapeless systems
using the MicroVAX Ethernet
Server Customer
Diagnostics Kit, 3-2
Diskless or Tapeless Systems
running MDM on, 3-2
Display System Configuration and
Devices
option on Main Menu, 3-9
Display the System Utilities Menu
option on Main Menu, 3-12
Dual-host systems
running MDM on, 3-3

E
Error messages
all devices disabled, 3-9
No Dg, 3-11
Unknown, 3-12
Exiting MicroVAX Diagnostic
Monitor (MDM), 3-16

IOADDRES
option on Main Menu, 3-13

p
Power-on problems, 1-1

R
Rebooting the system
after running MDM, 3-16
RF-series integrated storage
elements
booting from, 1-4
operation problems, 2-2

s
Self-test
during power-on, 1-1
Single Device Tests
option on the Main Menu, 3-14
Starting the MicroVAX Diagnostic
Monitor (MDM), 3-5
from a TK70 tape cartridge, 3-5

Index-1

T
Tape drives
problems booting from a tape
cartridge, 1-4
Test the System
option on Main Menu, 3-8
TK70 tape drives

Index-2

operation problems, 2-3
running MDM on, 3-5
Troubleshooting
during normal operation, 2-1

u
Utilities Menu
option on Main Menu, 3-12

HOW TO ORDER ADDITIONAL DOCUMENTATION
From

Call

Write

Alaska, Hawaii,
or New Hampshire

603-884-6660

Digital Equipment Corporation
P.O. Box CS2008
Nashua NH 03061

Rest of U.S.A.
and Puerto Rico l

800-DIGITAL

IPrepaid orders from Puerto Rico, call Digital's local subsidiary (809-754-7575)

Canada

800-267-6219
(for software
documentation)

Digital Equipment of Canada Ltd.
100 Herzberg Road
Kanata, Ontario, Canada K2K 2A6
Attn: Direct Order Desk

613-592-5111
(for hardware
documentation)

Internal orders
(for software
documentation)

DTN: 241-3023
508-874-3023

Software Supply Business (SSB)
Digital Equipment Corporation
Westminster MA 01473

Internal orders
(for hardware
documentation)

DTN: 234-4323
508-351-4323

Publishing & Circulation Services (P&CS)
NR03-lJW3
Digital Equipment Corporation
Northboro MA 01532

Reader's Comments

VAX 4000 Troubleshooting
and Diagnostics
EK-386AA-TS-001

Your comments and suggestions will help us improve the quality of our future documentation. Please note that this form is for comments on documentation only.

I rate this manual's:

Excellent
Accuracy (product works as described)
0
Completeness (enough information)
0
Clarity (easy to understand)
0
Organization (structure of subject matter)
0
Figures (useful)
0
Examples (useful)
0
Index (ability to find topic)
0
Page layout (easy to find information)
0

Good

Fair

Poor

0
0
0
0
0
0
0
0

What I like best about this manual:
What I lik~ least about this manual:

My additional comments or suggestions for improving this manual:

I found the following errors in this manual:
Page
Description

Please indicate the type of user/reader that you most nearly represent:

o Administrative Support
o Computer Operator
o EducatorlTrainer
o Programmer/Analyst

o ScientistlEngineer
o Software Support
o System Manager
o Other (please specify)

D Sales
Name!I'itle

Dept.

Oompany

Date

Mailing Address
Phone
[0/87

Do Not Tear -

Fold Here and Tape

NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES

BUSINESS REPLY MAIL
FIRST CLASS PERMIT NO.33 MAYNARD MASS.
POSTAGE WILL BE PAID BY ADDRESSEE

DIGITAL EQUIPMENT CORPORATION
CORPORATE USER PUBLICATIONS
PK03-1/D30
129 PARKER STREET
MAYNARD, MA 01754-2198

11111 •• 11 11111.1.1.1 •• 11111.1 •• 1.1 •• 111.1.1.1'1111.1
Do Not Tear - Fold Here