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Document:	DECsystem 5900 Dual CPU Drawer Installation Manual
Order Number:	EK-DECDU-IN
Revision:	A01
Pages:	40
Original Filename:

OCR Text

InstalationD5r9a0werDECCPsUysDtueaml
EAONXKur-mD0EdbCDeU1-rIN:.
Manual

First Printing, June 1992

The information in this document is subject to change without notice and should not be construed
as 2 commitment by Digital Equipment Corporation.

Digital Equipment Corporation assumes no responsibility for any erroms that may appear in this
document.

Any software described in this document 13 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 i3 not supplied by Digital Equipment Corporstion or its
affiliated companies.

Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to 1-stnctions

as set forth in subparagraph (c¥1Kii) of the Rights in Technical Data and Computer Software clause
at DFARS 252.227-7013.

The following are trademarks of Digital Equipment Corporation: Cl, CompacTape, DEC,
DECconnect, DECnet, DECserver, DECsystem 5900, DECwindows, RRD40, RRD50, RX, ThinWire,
TK, TS, TU, TURBOchannel, ULTRIX, VAX, VAX DOCUMENT, VMS, VT, and the Digital logo.
PrestoServe is a trademark of Legato Systems Inc.

FCC NOTICE: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case users will be required te correct the interference at their own expense.
This document is available in hard copy only.

51924

This document was prepared using VAX DOCUMENT, Version 2.1.

Preface

................................................

Overview

CPU Drawer Instaliation
2.1

2-1

2111

Unpacking the Upgrade Shipment
Accessory Kit Contents . .

212

Consult Customer to Determine Configuration and

211

2-2
2-2

Location

2-3

213

Powering Down the System

2-5

214

Removing Filler Panel(s)
Moving the Original Cable Arm

2-7

215

2151
2152
2.1.6

Removing the Cable Arm
Remounting the Original Cable Arm

Assembling and Atiaching Slides to Cabir'u‘e&.

2-8

2-8
2-9
2-11

2161

CPU Drawer Location

2-11

2.16.2

Slide Assembly
Installing the New Cable Arm

2-11

217
218
2198

2110

Installing the CPU Drawer

vii

2-14

Balancing the System
Installing Drawer in Cabinet
Pushing in the Drawer

2-14

2-15

2-17

Connections, Power Up, and Testing
3.1

3.1.1

31119
3112

312
313

Connecting Cables

3-1

Power

Power Cord

3-1
..............................

Remote Power Sequence Cable
Connecting the System Console
TURBOchannel Connections

....................

3-1

3-2
3-3

3-3

3.2
321
322
323
33
331
332
333
334
34

Powering Up the System ... ... .. ... ... ... . ..
Power Controller . .. . . ... ... . .. ... .. ... ..
Mass Storage Drawer . .. ... .. ..
..
CPU Drawer/System . ... . ... ... ... . ....
Acceptance Testing . . .. .. ..
... ... ...
Power
Up Self-Test (POST) ... .. . ... ... ... ..
Checking the System Configuration . . . .. ... .. ...
Fxtended ROM Tests . ..
... . ... ... ... ... . .
SCSI Test Commands . ... ... .. .. ...
.. ... ..
Modifying ULTRIX . . . . ... .. ...
... ... ... ... .

3-4
3-4
3-4
3-5
3-5
3-6
3-6
3-7
3-9
3-10

WMass Storage Drawer Configuration/Setting SCS! IDs
4.1

. .. ... ... ... .. ..

4-1

Altering the Factory-Set Configuration . .......
.. .
Single Bus Configuration . . . ... ... .. ... .. ...

4-2
4-2

4112
Sphit Bus Configuration . ... ... .. .. ... . ... ...
42
SCSLIDs . ...
421
Default SCSI Device IDs
... ...
... ...
422
Setting SCSIIDs . ... .. ... ...
L.
4221
SCSI Jumpers and Switches ... ... .. ... . ..

4-2
4-2
4-2
4-3
4-3

411
4111

Mass Storage Drawer Configuration

Figures
2-1

Slots and Suggested Location of Drawers

2-2

CPU Drawer Front Panel.

2-3

Power Controller .. ... ...

Removing Filler Panelts) .. ... . ... ...

...

.. ...

2-7

2-5

Removing Onginal Cable Arma .. ... ...

...

2-8

2-6

Cable Arm Installation.

2-10

2-7

Attaching Rear Bracket and Slides to Cabinet . . . .. ..

2-12

2-8

Attaching Front of CPU Shdes to Cabinet . . .. ...
.

2-13

2-9

Stabihzing the Enclosure . . ... ... ... ...

2-15

2-10

Installing the CPU Drawer .. ... ... ... . ...

2-11

Pushing In CPU Drawer .. ...

3-1

CPU Drawer Rear Panel . . ... ... ...

3-2

Mass Storage Drawer Version 1 Rear Panel.

.. ..

. ..

3-3

Mass Storage Drawer Front Panel . . ... ... ...

...

3-5

. . ... ..

.. .. ...
..

... ..

... ... ...

... ... ..

2-5

... .. ... ..

2-6

.. .. .. .. ...

.. ...

2-4

.. ... ...
.. ..

2-16

... ... .. ...

2-17

...

3-2

.. .. ..

Tables
2-1

Drawer Locations on the Cabinet Rails . .. ... ... ...

2-11

3-1

Individual Module/Device Tests and Utilities . . . . . . ..

3-7

4-1

Configuration Option Choices/Advantages . . ...
.. ...

4-2

DECsystem 5900 SCSI Device 1D Default Settings . . .

4-3

Page

blank

page

Preface
Product Description
The DECsystem 5900 is a computer system designed for server applications,
including file servers, compute-servers, and network servers. It is a midrange
system that uses a modular approach, based on industry standard, 47.5 cm
(19 inch) rack mount components.
DECsystem 5900 server CPU drawers use a high-performance sing’e-board

computer based on the MIPS R3000A 40-MHz processor. The DECsystem 5900
comes in a single-cabinet configuration that contains a power controller, one or
two CPU drawers, and up to four additional mass storage drawers.

Document Description
This manual describes the installation of a second CPU drawer (an “upgrade”)
in the DECsystem 5900 to make a dual CPU configuration. The manual will be
packaged with an upgrade kit to provide step by step instructions for Digital
Services engineers.

This manual is to be used in conjunction with the DECsystem 5900 Service Guide,
EK-D590A-PS.
Any service or upgrades needed inside the DECsystem 5900 cabinet must be done
by a Digital Services engineer or an authorized self-maintenance customer.

Audience
The DECsystem 5300 Dual CPU Drawer Instailation Manual is for use only by
Digital Services engineers or self-maintenance customers who are receiving a
dual CPU drawer upgrade for installation.

Vil

Document Structure
The DECsystem 5900 Dual CPU Drawer Installation Manual contains four
chapters, as follows:
Chapter 1

Overview

This chapter is an introduction pronnding important background
information.
Chapter 2

CPU Drawer Installation
This chapter contains step by step procedures for the installation and
testing of the CPU drawer upgrade.

Chapter 3

CPU Drawer Cables and Busses
This chapter contains information needed to connect cables and busses
to the CPU drawer upgrade.

Chapter 4

Mass Storage Drawer Configuration/Setting SCSI 1Ds
This chapter contains information on altering mass storage drawer
configurations and/or SCSI device IDs if requested by the customer.

Conventions Used in This Document
The DECsystem 5900 CPU Drawer Installation Manual uses the following
conventions:

Convention

indicates

boldface type

User input.

italic type

Important information, variables, and complete titles of manuals.

Note

General information about the current topic.

Caution

Information to prevent damage to equipment or software. Read
these carefully.

WARNING

Information to prevent personal injury. Read these carefully.
Press that key.

Viti

Overview
This manual describes how to install an entire dual CPU drawer upgrade in the
DECsystem 5900; it is meant to be used in conjunction with the DECsystem 5900
Service Guide, EK-D590A-PS.
In many instances, a dual CPU upgrade will be installed in conjunction
with a new mass storage drawer. For details on connections to mass storage
drawers, see the DECsystem 5900 Mass Storage Drawer Installation Manual,
EK-DECMS-IN, which will be included when a mass storage drawer is to be
installed.
WARNING

Only qualified service personnei should remove or install a
CPU drawer.

Static electricity can damage integrated circuits. Always use a
grounded wrist strap and a grounded work surface (29-26246)
when working with the internal parts of a computer system.

Shut down ULTRIX in an orderly fashion before you install a
CPU drawer (or any FRU) in the DECsystem 5800; procedures
in this document assume that ULTRIX has been shut down.

Turn off the system power switch and the main circuit breaker
before installing a CPU Drawer.

Extend the stabilizer bar to balance the system whenever one
or more drawers are pulled out from the cabinet.

At least two people are required for installing a CPU drawer.

Overview

1-1

2
CPU Drawer Installation
WARNING

Before installing or pulling out either the CPU or a mass storage
drawer, the stabilizer bar located at the bottom front of the
enclosure must be extended to balance the DECsystem 5800.

2.1 Installing the CPU Drawer
WARNING

At le=st two people are required to remove or replace a drawer in
the DECsystem 5800.

The general steps for installing a CPU drawer are listed below. Each is covered
in detail in the referenced section of this chapter.
1.

Unpack the upgrade shipment (Section 2.1.1)

Consult customer to determine location and configuration of the drawer
(Section 2.1.2)
Power down the system (Section 2.1.3)

Remove filler panel(s) (Section 2.7 4)
5.

Move the original cable arm (Se

.n 2.1.5)

Assemble and attach CPU drawer slides to the cabinet (Section 2.1.6)
7.

Install the new cable arm (Section 2.1.7)

Extend the stabilizer bar to balance the system (Section 2.1.8)

Install the drawer on the slides in the cabinet (Section 2.1.9)

10. Push in the drawer (Section 2.1.10)

CPU Drawer installation

2-1

Retract the stabilizer bar (Section 2.1.8)

12. Connect the power cables and busses (Section 3.1)
13. Connect the new system console (Section 3.1.2)
14. Power up the system (Section 3.2)
15.

Run acceptance tests (Section 3.3)

16. Modify ULTRIX (Section 3.4)

2.1.1

Unpacking the Upgrade Shipment

To begin the installation, unpack the CPU drawer shipment and check to see that
it has arrived with all accessories. Section 2.1.1.1 lists the accessory kit contents
for a CPU drawer upgrade shipment with no additional options or accessories.
The shipment may also contain a system console and/or mass storage drawers,
new storage options, and associated accessories. The SCSI and power cables for
all mass storage drawers are present in the DECsystem 5900 when it is originally
shipped from the factory (whether or not drawer slots were filled at that time), so
all cabling for mass storage drawer(s) should be already installed in the cabinet.
2.1.1.1

Accessory Kit Contents

CPU drawer as=embly
Drawer slides and accessories
Cable arm extension bracket
Cable arm

SCSI cable, external
Power cord
Tie-wraps
Screws
Product conversion label
DECsystem 5900 Dual CPU Installation Manual (this manual)

2-2

CPU Drawer Instaliation

2.1.2 Consult Customer to Determine Configuration and Location
Before proceeding with the CPU drawer installation, consult the customer or
system manager to determine the drawer(s) locations in the DECsystem 5900
cabinet. The slots in the DECsystem 5900 cabinet are labeled consecutively,
starting with slot 0 o1, the bottem. The power controller is located in the rear of
slot 0.
Note

The DECsystem 5900 should be configured with CPU drawers toward the

bottom of the cabinet for balance (normally the second or third slots).

The suggested location for the second CPU drawer is slot 2 in the cabinet. (See
Figure 2-1).

CPU Drawer Installation

2-3

Figure 2-1

Slots and Suggested Location of Drawers

PALO-008349

slot 1 (may contain a mass storage drawer or other options; if empty, it will
be covered by a filler panel)

@ slot 2 (left empty for dual CPU upgrade; covered by filler panel)
slot 3 (original CPU drawer)

slot 4 (original mass storage drawer)
slot 5 (may contain a mass storage drawer or other options; if empty, it will

be covered by a filler panel)

slot 6 (may contain a mass storage drawer or other options; if empty, it will

be covered by a filler panel)
slot 0 (covered by a filler panel in front, contains power controller in rear)

2—4

CPU Drawer Installation

2.1.3 Powering Down the System
Note

Prior to powering down the DECsystem 5900, ULTRIX must be shut down

in an orderly fashion by the customer/system manager.

Turn off the system power switch (Enable Power On Switch) on the front of
the operational CPU Drawer. (See Figure 2-2.)

Turn off the circuit breaker on the power controller. (See Figure 2-3.)
The power controller is accessed through the rear door on the bottom of the
enclosure.

Figure 2-2

CPU Drawer Front Panel

MLO-00765!

5/16 hex screws that secure the drawer to the shipping restraint brackets
CPU drawer power switch (chould normally be left on)

system power switch (Enable Power On Switch)
LED power indicator

CPU Drawer Installation

2-5

Figure 2-3 Power Controlier

MLO-0083583

remote power sequence cable (to CPU drawer)
remote sequence connectors

circuit breaker

2-8&

CPU Drawer Installation

2.1.4 Removing Filler Panel(s)
Slots in the DECsystem 5900 enclosure front that contain no drawers will be
covered with a filler panel. Slot 0, which contains the power controller (accessed
through the rear of the enclosure), has a filler panel as well.
anhad ¢
abhin
warlo
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the franmt
front caninet
rails s
Sy means
n
¢" “nnr "‘“x sCcroews,

two on each side. Remove these hex screws by inserting a screwdriver through

the access holes (see Figure 2—4). Save the panel for future use by storing it in
the accessory kit.
Ficure 2-4

Removing Filier Panel(s)

{

NI,

o\y/a

MLO-008350

@ filler panel

@ hex screw

CPU Drawer Installation

2-7

)

2.1.5 Moving the Original Cable Arm
2.1.5.1

Removing the Cable Arm

On earlier versions of the DECsystem 5900 the original cable arm uses the same
cabinet rail holes that the dual CPU drawer siides will occupy. The original cable
arm must be moved prior to installation of the new drawer slides.
Use the following procedures to remove the original cable arm (accessed through
ti e rear door of the DECsystem 5900). Leave the cables tie-wrapped to the arm
for remounting. See Figure 2-5. (The illustration shows the cable arm without
the tie-wrapped cables for clanty.)

Leaving the cable arm attached to the bracket, remove the bracket from the
rail (the bracket and cables are still attached to the arm).

Remove the U-nuts from the rail to use in remounting the cable arm bracket.

Figure 2-5

Removing Original Cable Arm

®© e e 0

MLO-008407

2-8

U-nuts

bracket
hex screws
original cable arm

CPU Drawer Installation

2.1.5.2

Remounting the Original Cable Arm

Remount the original cable arm bracket (with the cable arm and cables tiewraped to it) to holes 56-59 using the same screws and U-nuts it was originally
mounted with. The top screw should occupy hole 56, two holes down from the
originai CPU drawer slides. See Figure 2-6. (To count hole numbers on the
cabinet rails, see Section 2.1.6.1.)
Note

Cable arm brackets are attached on the inside of the rail; the U-nuts are
therefore reversed in the rail holes.

Figure 2-6 depicts both the remounted original cable arm and new cable arm
locations. (The illustration shows the cable arm without the tie-wrapped cables
for clarity. If you are following these procedures step by step, the lower (new)
cable arm and lower drawer slide will be installed later.)

CPU Drawer Installation

2-9

Flgure 2-6

Cable Arm Instaliation

MLO-008352

J-nuts
bracket for original cable arm

@ hole 56
hex scrows

hole 70

@ cable arm for original CPU drawer

bracket for new cable arm

@® cable arm for new CPU drawer

2-10

CPU Drawer Installation

2.1.6 Assembling and Attaching Slides to Cabinet
2.1.6.1

CPU Drawer Location

The placement of drawers may be determined by counting the holes in the
cabinet rails, beginning on the top and counting down. The placement of drawers
is described in Table 2-1:
Table 2-1

Drawer Locations on the Cabinet Ralls

Cabinet

Slot

Typlcal Application

Hole Numbers (From the Top)

mass storage

3-8

mass storage

20-23

mass storage

35-38

CPU

50-53

CPU

65-68

mass storage

80-83

power controller

NA.

To install slides for a dual CPU installation, place the slides at holes 6568
(cabinet slot 2).
2.1.6.2

Slide Assembly

Assemble and attach the slides to the cabinet in holes 65-68 using the following
procedures. (See Figure 2-7 and Figure 2-8.) For the numbering of cabinet rail
holes, see Table 2-1.
1.

Place the screws and four-holed fasteners loosely on hoth the front and rear
cabinet rails (see Figure 2-7 and Figure 2-8). Do not tighten the screws until
the shde is mounted in the following steps.

Place the rear bracket on the rear cabinet rail using the screws and four-holed
threaded fastener (Figure 2-7). Do not tighten the screws until completing

following steps.
3.

Loosely attach the front flange of the slide to the screws and four-holed

threaded fastener (Figure 2-8).
4.

Place the rear of the shde in the rear bracket, adjust to the exact length of the
cabinet, and loosely attach using screws and a four-holed threaded fastener
(Figure 2-7).

CPU Drawer Installation

2-11

Seat the front flange of the siide and the rear bracket (now attached to the
slide) firmly and squarely against the cabinet rails and tighten them to the
cabinet with the screws and fasteners already in place.

Tighten the rear of the slide to the bracket.

Repeat these steps for the other slide.

Figure 2-7

Attaching Rear Bracket and Slides to Cabinet

oo@o0 0 ao¥_¥}r‘¥‘oa ON

Rear

MLO-008343

four-holed threaded fastener
hex screws

rear slide bracket
hex screws
slide

2-12

CPU Drawer installation

Attaching Front of CPU Slides to Cabinet

NNV

Figure 2-8

k1O 008408

hex screws
four-holed threaded fastener

front flange of slide

CPU Drawer Instaliation

2-13

2.1.7 Installing the New Cable Arm
The new cable arm is attached in the same manner as the original cable arm.
See Figure 2-6. (To count hole numbers on the cabinet rails, see Section 2.1.6.1.)

Attach the new cable arm bracket to the cabinet using screws and U-nuts.
The top screw should occupy hole 70, one hole down from the newly installed

drawer shdes for the CPU drawer upgrade.
2.

Use hex screws to attach the cable arm to the newly installed bracket.

Cable connections and routing (Chapter 3) are accomplished after installing
the drawer (Section 2.1.9).

2.1.8 Balancing the System
WARNING

Before installing or pulling out either the CPU or a mass storage
drawer, the stabilizer bar located at the bottom front of the
enclosure must be extended to balance the DECsystem 5800.

The system 1s balanced by extending the stabilizer bar located at the bottom
front, as depicted 1in Figure 2-9

If the leveler foot is tightened down te the floor, raise it.

Pull the stabilizer bar out until it stops.
Screw the leveler foot down firmly by hand.
To retract the arm, reverse these procedures

2-14

CPU Drawer Instaliation

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2-15 InstaliatorDrawerCPU

F2i-g1u0r.)e

fo t leveler

Push in on each of the inner slide button tabs, and continue to push in on
the drawer until the button tabs on the inner drawer “click” outward through
the holes in the middle drawer slide, indicating that the drawer is securely
fastened in its extended position.

To push the drawer shut, see Section 2.1.10

Figure 2-10

Installing the CPU Drawer
!

!
|

M:i.0 008346

middle slide section
CPU drawer
inner shde
inner slide button tab

middle slide holes

2-16

CPU Drawer Installation

2.1.10 Pushing in the Drawer
To push in the CPU drawer, use the following procedures. See Figure 2-11.
1.

Simultaneously push in and hold both the spring tab buttons on the slides
(one on the outside of each inner slide).

Push in on the front of the drawer until it is flush with the front cabinet rails.

There is no need for hex screws on the front of the drawer; the six hcles are
for use in the future to secure the drawer to shipping restraint brackets if the
system is to be shipped.

After pushing in the drawer, the stabilizer. bar . 1ay be retracted (see
Section 2.1.8).

Flgure 2-11

Pushing In CPU Drawer

Mt O 008351

inner drawer slide

inner drawer slide tab buttons (protruding through middle slide holes)

CPU Drawer Installation

2-17

Connections, Power Up, and Testing
3.1 Connecting Cables
Note

Before proceeding, consult the customer or system manager to determine
how the installation of the dual CPU drawer will affect the configuration

of the DECsystem 5900.

Connections to the newly installed CPU drawer depend upon the specific
configuration requested by the customer. In some instances, cabling to the
original CPU drawer and the mass storage drawers may be altered as well.
The rear panel of a CPU drawer is illustrated in (Figure 3-1).
Note

Cables are to be routed through the cable arm and dressed in the same
manner as on the original CPU drawer.

3.1.1

Power

3.1.1.1

Power Cord

Plug one end of the new drawer power cord into one of the ac outlets on the side

of the power controller (Figure 2-3). Route and tie-wrap the cord with the other
power cords along the cabinet rail, and connect it to the ac power receptacle on

the back of the drawer. Do not run the power cord along the cable arm.

Connections, Power Up. and Testing

3-1

3.1.1.2

Remote Power Sequence Cable

Using remote power sequence cables, both of the CPU drawers will be powered
so that the Enable Power On Switch (system switeh) on the front of either CPU
drawer (see Figure 2-2) controls power to the whole system.
Connect the remote power sequence cable to one of the remote sequence

connectors on the power controller (see Figure 2-3) and the other to the remote

power sequence connector on the new CPU drawer @ (see Figure 3-1).
CPU Drawer Rear Panel

[s]

- -

_1\

Figure 3-1

JIILLAL[L[[[[[[[E[ER
e

L
T e S

i S

o 8

ol
ML O-007741

not used
TURBOchannel Extender Module slots

TURBOchannel Extender /O (connected to @)
ac power receptacle
remote power sequence connector

system module SCS{ port

TURBOchannel Extender Adapter module (in option slot 0, connected tc @)
standard Ethernet

diagnostic LEDs
halt switch

3-2

Connections, Power Up, and Testing

system console port
TURBOchannel option slot 1
commuications port

TURBOchannel option slot 2

€

ol used

3.1.2 Connecting the System Console
In consultation with the customer, determine which terminal device will serve as

the console for the newly installed CPU drawer. Connect the cable to the system
console port on the rear of the CPU drawer (depicted in Figure 3-1).
Set the console device to 9600Q baud, no parity, one stop bit.

3.1.3 TURLOchannel Connections
In consultation with the customer, determine which PMAZ SCSI controilers are

to be connected to which mass storage devices or enclosures.
Cable devices to the approprate mass storage drawers or devices.

(Connect the CPU drawer end of the SCSI cable to one of the SCSI ports on
the back of the CPU drawer (see Figure 3-1); either the system module SCSI
port or a PMAZ SCSI adapter. (The appropriate port will vary according to
the particular configuration of the DECsystem 5900; if in doubt, check with
the customer or system manager.)

(Connect the other end of the SCSI cabie to the mass storage drawer

or external device(s). The exact location of the SCSI connector will be
determined by the particular version of mass storage drawer. (See Figure 3-2
for an illustration of a typical connection.)

For information on particular devices, see the appropriate device user’s manual.
For more information on configuring mass storage drawers, sce Chapter 4.

Connections, Power Up, and Testing

3-3

WMass Storage Drawer Version 1 Rear Panel
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MLN-00765%

power switch (should normally be left on)
power cable that connects to main power controller
SCSI bus connectors to CPU drawer
vent for outflow of air

3.2 Powering Up the System
3.2.1

Power Controlier

Turn on the circuit breaker on the power controller (located in the rear of the
cabinet, on the bottom). See Figure 2-3

3.2.2 Mass Storage Drawer
Switch the mass storage drawer power switch on the rear of the mass storage

drawer “On”. Depending upon the particular version of mass storage drawer,
there may also be a power switch on the front of the drawer. In this case, make
sure both are switched “On”.
See Figure 3-2 and Figure 3-3 which depict one version of a mass storage drawer
(with a switch on the front and back).

3-4

Connections, Power Up, and Testing

0 7650 MLO

Note

inlet air

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Note

These procedures are an overview of the acceptance testing steps.
Detailed information can be found in the DECsystem 5900 Service Guide,
EK-D590A-PS.

Note

Make sure a console is connected to the console port on the rear of the
upgrade CPU drawer.

33.1 Power-Up Self-Test (POST)
1.

Turn on the upgrade CPU drawer (depending upon the system/power
controller configuration, the original CPU drawer may have to be turned
on also).
Watch the console terminal for a running display of the POST tests. Most will
overwrite the display from previous tests as they are run.
There should be no errors in this 2 minute (approx) test.
Note
Disregard the Pntr and Kbd messages; they are not errors.

If there is no display, look for a green power LED on the front, and see if the

red LEDs on the rear of the CPU drawer are changing state as the tests run.
If the LEDSs are not on, check for a power or cabling problem. Make sure
that the drawer is receiving ac power.

3.3.2 Checking the System Configuration
Use the cnfg utility to assure that the system can "see” all the memory modules,
NVRAM, TURBOchannel options and SCSI devices. There can only be one SCSI

device 0,1,2,3,4,5,0r 6 on each SCSI bus.
Pay particular attention to SCSI IDs on configurations that use split SCSI or
have two CPUs sharing a single mass storage drawer. If the system cannot see
all the devices on each SCSI bus or on the systern module, check the cable/module
connections or the SCSI ID’s.

3-6

Connections, Power Up. and Testing

Run config by entering c¢nfg x where x = the TURBOchannel bus ID: 0,1,2, or 3;
use 3 for the system module.

3.3.3 Extended ROM Tests
Run the extended tests on memory, cache, floating point, Etherret, prcache and
TLB. The -1 command will cause the tests to loop until a A¢ is typed. Table 3-1 is
provided as a guideline.
Table 3-1

Individual Module/Device Tests and Utilities

individual Test

Yest Command

System Module

Halt button

t Y/misc/halt n(0}'

Nonvolatile RAM

t 3/rte/nvr [pattern)’

Overheat detect

t 3/overtemp

Real-time clock period

t 3/ric/period

Real-time clock register

t 3/rtc/regs

Real-time

t 3/rtchime

SCC? access

t 3/scefaccess

SCC DMA

t %/scc/dma line(2] int/ext(I] bd(38400] pa[none] bits(8}*

SCC interrupt

t 3/scefint line[0]’

SCC VO

t 3/scclio line[0] int/ext[I] *

SCC pins

t 3/scc/pins line[2] loopback[29-24795-00]°

SCC xmit and receive

t Yscc/tx-rx line|2] int/ext(i] bd[9600] pa[none] bits[8]*

NVRAM

t 3/preache

NVRAM clear

t 3/prcache/clear

NVRAM battery enable

t &/preache/unarm

NVRAM battery disable

3/precache/arm

System Module
Ethernet Controller
110} = [1-9] = press halt same number of times (1-9)

2(pattern| 55 is default pattern
4Serial communications chip
*Conventions used in SCC tests. line, seriai line to test, 2 is rightmost from back 3 is leftmost. int/ext
is internal or external loopback. bd is baud rate. pais paritfy. its is data bits. loopback specifies the
type of loopback used in the pins test, The value in | | specifies the default.

{contirued on next page)

Connections, Power Up, and Testing

3-7

Table 3-1 (Cont.)

Individual Module/Device Tests and Utilitles

indlvidual Test

Test Command

Collision

t ¥/ni/clisn

Cyclic redundancy code

t $/mi/ere

Display MOP counter

t 3/mi/ctre

DMA registers

t 3/mi/dmal

DMA transfer

t $/mi/dma?

ESAR®

t 8/mi/esar

External loopback

t 3/mi/ext-lb

Internal loopback

t 3/mi/int-Ib

Interrupt request (IRQ)

t 3/mi/int

Multicast

t 3/ni/m-cst

Promiscuous mode

t 3/mi/promisc

Registers

t /mi/regs

SCS8I Controller and
Drives
SCSI controller

t Yecsilcnt]

SCSI send diagn

t S/scsi/sdiag [scsi_id] [d] [u] [s]®

SCSI target

t 3/scsi/target [scsi_id] [w) [} #]°

CPU Card
Cache data test

t 3/cache/data [cache] [address]’

Cache fill

t S/cache/fill [cache] [offset]’

Cache isolate

t 3/cache/isol [cachel’

Cache reload

t 3/cache/reload [cache] [offset)’

Cache segment

t 3/cache/seg [cache] [address]’

CPU-type

t 3/misc/cpu-type

SEthernet station address ROM
SReplace scsi_id with device id # that you want to test. 0 is the default. |d] and [u] are device-specific

parameters. Reference the device manuals for more details. Leave to default if unsure. (s3] suppresses
error messages (not normally set). {w] if specified will perform a write test to the device called out in
BCSI target test. Caution:
This can cause data loss. Bun this command only on hard disks that have
no data or on tapes with scratch media installed.

7Replace [cache| with I (instruction) or D (data) to sgccify which cache to test. Data cache is default.
Default loffset] is 80500000. You can replace with address you wish test to start at. laddress| is not
normally entered.

(continued on next page)

3-8

Connections, Power Up, and Testing

Table 3-1 (Cont.)

individual Module/Device Tests and Utilities

individual Test

Test Command

Floating-point unit

t 3/fpu

Translation lockaside
buffer probe

t 3/thb/prb

TLB reg

t 3/tlb/reg [pattern] [pattern]®

Memory Modules

Floating 10

t 3/mem/float10 |address]’

Memory module

t 3/mem [module} [threshold] [pattern]®

RAMN: address select

t 3/mem/select

lines

Partial write

t 3/misc/whpsart

Initialize memory

t 3/mem/init

8{pattern| default is 5565655565. Pattern can be entered if needed.
9%You can enter starting [address]. A0100000 is default. Module # default is 0. You can specify module
{module]. A data pattern can be specified | pattern].

3.3.4 SCSI Test Commands
Note

For more detailed information consult the DECsystem 5900 Service Guide.
EK-D590A-PS.

To test SCSI controllers, configurations, and new devices that were added, run
the scsi/entl (SCSI controller), scsi/sdiag (send diagnostic) and the scsi/target tests

(test SCSI devices) on the SCSI controller(s) and newly added SCSI devices.
Caution
The |w] parameter on the scsi/target test may cause data loss; use it only
on newly installed disk devices which have no data on them, or use a

scratch tape in tape devices.

Connections, Power Up, and Testing

3-9

3.4 Modifying ULTRIX
These steps will vary with the scope of the changes to the system configuration
that have been made during the CPU drawer upgrade. Depending on the site,
you and/or the customer/system manager should consult the Guide to Installing
ULTRIX, AA-PBLODTE and other ULTRIX documentation for more details on
adding devices.

3—-10

Connsctions, Power Up, and Testing

lass Storage Drawer
Configuration/Setting SCSI IDs
Note

This chapter is included in the DECsystem 5900 Dual CPU Drawer
Installation Manual for your convenience if the customer requests that

you reconfigure a mass storage drawer or change SCSI device IDs as a
result of the CPU drawer installation.

4.1 Mass Storage Drawer Configuration
Note

The information contained in this section is needed only if the factory

configuration of the mass storage drawer must be altered. A synopsis of
this information is on the label located on the bottom of the mass storage
drawer cover.

A mass storage drawer has the capability to split SCSI devices between two
SCSI controllers. Devices in the mass storage drawer must be configured and
connected before turning on the system.

All mass storage drawers in the DECsystem 5900 are ordered in a specific
factory-installed configuration as specified by the customer/system manager (this
includes mass storage upgrades ordered at a later date).
Two cabling configuration choices are available:

single bus configuration

split bus configuration

Mass Storage Drawer Configuration/Setting SCS1 IDs

4~1

4.1.1

Altering the Factory-Set Configuration

The customer/system manager may wish to alter the configuration of a mass

storage drawer, the options and tradeoffs are listed in Table 4-1.
Table 4-1

Configuration Option Choices/Advaniages

Configuration Option

Advantages

Single bus

Maximizes devices per SCSI controller.

Split bus

Improves processing speed and efficiency for increased
VO loads.

4.1.1.1

Single Bus Configuration

For a single bus configuration, you must install a jumper between the internal

SCSI cables in the mass storage drawer. The jumper connects the two busses in a
mass storage drawer; the resulting single bus configuration is terminated on the
rear of the drawer on the connection next to the SCSI signal input.
4.1.1.2

Spiit Bus Configuration

The split bus configuration uses both SCSI signal cables without a jumper. In

this configuration both SCSI busses must be terminated with a cable terminator
at the end of each internal SCSI cable.

4.2 SCSI IDs
Note

The information contained in this section is needed orly if the factory-set

device SCSI IDs must be altered. A synopsis of this information is on the
label located on the bottom of the mass storage drawer cover.

4.2.1

Default SCSI Device 1Ds

SCS1 default settings for the DECsystem 5900 are listed in Table 4-2. The
settings listed give optimal performance on most systems.

4-2

Mass Storage Drawer Configuration/Setting SCSI IDs

Table 4-2

DECsystem 5300 SCSI Device ID Default Settings

Device

CPU SCSI adapter

First removable device

Boot device or first device

Remaining davices, in order

1,2,3,4,6

Remaining removable devices

6,4,3,2,1

Note

No devices should ever use SCSI ID 7, as this is reserved for the CPU or
PMAZ SCSI controller.

4.2.2 Setting SCSI IDs
Digital sets each SCSI device to a default SCSI ID setting before the equipment
leaves the factory. These default settings should be changed only when there is a

conflict with other SCSI iDs on the same SCSI bus.
When adding a SCSI device to the DECsystem 5900 (or reconfiguring a mass

storage drawer), it is necessary to change the ID number of effected SCoI devices.
The Digital Services engineer is responsible for changing the SCSI ID settings as
part of the recontiguration process.
Discuss the SCSU device 1D options with the customer/system manager, and note
the original configuration before altering the original device IDNs.
When each SCSI device is added or reconfigured, a label shoul. be placed on the

device or bracket indicating the SCSI 1D. This will help diagnose 1D conflicts
which may occur.
4.2.2.1

SCSI Jumpers and Switches

Varying means are employed (sets of switches, jumpers, incremental switch,
programmed via front panel, and so on) to set the SCSI ID, and parity, depending

on the particular device. For the method employed, and the location of switches
/jumpers on a particular device, see the appropriate device documentation, and

the label located on the underside of the mass storage drawer cover.

Mass Storage Drawer Configuration/Seiting SCS! IDs

4-3

On devices with jumpers, the SCSI ID is set by inserting (“In”) or removing
(*Out”) any of three jumpers in a specific combination. On devices with sets of
switches, the SCSI ID is set by moving any or all of the switches to “On” or “Off".
Incremental switches show a number which increments up or down when the

switch is pushed.

Cautlon
To change SCSI 1D switches, use a pen or small pointed object to move

the jumper; do not use a pencil point. Graphite particles can damage the

device.

4-4

Mass Storage Drawer Configuration/Setting SCS! IDs