IBM RS-6000 SP User Manual

RS/6000 SP

SP Switch Service Guide

IBM

GA22-7443-04

RS/6000 SP

SP Switch Service Guide

IBM

GA22-7443-04

Note!

Before using this information and the product it supports, read the information in “Safety and environmental notices” on page ix and “Notices” on page A-1.

Fifth Edition (April 2002)

This book replaces GA22-7443-03. IBM welcomes your comments. A form for readers’ comments may be provided at the back of this publication or you

may address your comments to the following address:

International Business Machines Corporation Department 55JA, Mail Station P384 2455 South Road Poughkeepsie, NY 12601-5400 United States of America

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Figures ....................................v

Tables ....................................vii

Safety and environmental notices ..........................ix

Safety notices ..................................ix

Danger notices.................................ix

Caution notices ................................xi

Laser safety information .............................xiii

Environmental notices...............................xiii

Product recycling and disposal ..........................xiii

About this book ................................xv

Who should use this book .............................xv

Related information ................................xv

How to send your comments ............................xvi

Summary of changes ..............................xvii

GA22-7443-04 .................................xvii

GA22-7443-03 .................................xvii

GA22-7443-02 .................................xvii

GA22-7443-01 .................................xvii

GA22-7443-00 .................................xvii

Chapter 1. Maintenance Analysis Procedures (MAPs)..................1-1

SP Switch MAPs ................................1-1

SP Switch description and problem determination (MAP 0590) ..............1-1

SP Switch environment (MAP 0600) ........................1-5

SP Switch power (MAP 0610) ..........................1-13

SP Switch function (MAP 0620) .........................1-17

Chapter 2. Locations ..............................2-1

Naming standard for RS/6000 SP components .....................2-1

Format structure ...............................2-1

Location diagrams of the RS/6000 SP components....................2-2

Front and rear views of RS/6000 SP frame......................2-3

Frame locations ................................2-6

Switch assembly locations ............................2-8

Connector details ...............................2-9

Cable routing.................................2-9

Cable routing in a multi-switch frame (F/C 2030/1)...................2-11

Switch data cables ..............................2-13

Chapter 3. Service procedures ..........................3-1

Personal ESD requirements ............................3-1

Tools and files overview ..............................3-1

Using the css.snap script .............................3-3

Switch supervisor self-test .............................3-4

Verification tests using Perspectives .........................3-4

Node supervisor verification ...........................3-4

Frame supervisor verification ...........................3-5

Switch supervisor verification ...........................3-5

Selecting appropriate switch clocks..........................3-6

Selecting the switch clock source .........................3-6

Determining the correct switch clock source .....................3-6

Removing and restoring switch resources .......................3-7

Removing a switch assembly from the active configuration ................3-7

Restoring a switch assembly to the active configuration .................3-8

Viewing switch partitions ............................3-8

Service position procedures ............................3-9

Placing a switch assembly into service position ....................3-9

Replacing a switch assembly from service position ...................3-9

Resetting the clock and bootlist after servicing a node...................3-9

Installing firmware updates on SP nodes .......................3-10

Installing adapter microcode packages ........................3-10

Running diagnostics on a switch port ........................3-12

Chapter 4. FRU removals and replacements .....................4-1

Handling static-sensitive devices ..........................4-1

Procedures for switch assemblies ..........................4-2

Removing the switch assembly ..........................4-2

Replacing the switch assembly ..........................4-2

Removing the switch fans ............................4-3

Replacing the switch fans ............................4-3

Removing the switch front chassis cable.......................4-3

Replacing the switch front chassis cable.......................4-4

Removing the switch supervisor card ........................4-4

Replacing the switch supervisor card ........................4-5

Removing the switch inner chassis cable ......................4-5

Replacing the switch inner chassis cable ......................4-6

Removing the switch power cards .........................4-6

Replacing the switch power cards .........................4-7

Chapter 5. Parts catalog .............................5-1

SPS, SPS-8 Switch assembly (feature) (view 1) .....................5-2

SPS, SPS-8 Switch assembly (feature) (view 2) .....................5-4

SPS, SPS-8 Switch assembly (feature) (view 3) .....................5-6

Switch cables (feature) ..............................5-8

Multi-switch frame (F/C 2030/1) ..........................5-10

Notices ...................................A-1

Trademarks ..................................A-1

Electronic emissions notices ............................A-2

Federal Communications Commission (FCC) statement .................A-2

European Union (EU) statement..........................A-2

United Kingdom telecommunications safety requirements ................A-2

Industry Canada compliance statement .......................A-2

For installations in Japan: ............................A-3

Electromagnetic interference (EMI) statement - Taiwan .................A-3

Radio protection for Germany ..........................A-3

Index ....................................X-1

iv RS/6000 SP: SP Switch Service Guide

Figures

1-1. SP Switch high-level diagram.........................1-2

1-2. SP Switch wrap plugs ...........................1-4

1-3. SP Switch inner chassis and front chassis cables .................1-8

2-1. Front view of frame locations .........................2-3

2-2. Front view of multi-switch frame locations ....................2-4

2-3. Front view of 49-inch frame locations ......................2-5

2-4. Rear view of frame locations .........................2-6

2-5. SPS/SPS-8 assembly............................2-8

2-6. RS/6000 SP connector details (as seen at receiving ends, not at cable ends) .......2-9

2-7. Frame cabling routing path in rear of RS/6000 SP frame — 1.93 m frame ........2-10

2-8. Frame cabling routing path in rear of RS/6000 SP frame — 2.01 m frame ........2-10

2-9. Frame cable routing paths in rear of RS/6000 SP multi-switch frame (F/C 2030/1) — 1.93 m

frame .................................2-12

2-10. Frame cable routing paths in rear of RS/6000 SP multi-switch frame (F/C 2030/1) — 2.01 m

frame .................................2-12

4-1. Handling an anti-static device.........................4-1

4-2. Removing the SP Switch fans ........................4-3

4-3. Removing the SP Switch fan control cable ....................4-4

4-4. Removing the SP Switch supervisor card ....................4-5

4-5. Removing the SP Switch inner chassis cable ...................4-6

4-6. Removing the SP Switch power supply cards ...................4-7

vi RS/6000 SP: SP Switch Service Guide

Tables

1-1. Switch problem diagnostics .........................1-4

1-2. Environmental messages for switches .....................1-5

1-3. Switch connector resistance values ......................1-6

1-4. Fan failure diagnostics ...........................1-8

1-5. Inner chassis cable continuity ........................1-16

1-6. Front chassis cable continuity ........................1-16

1-7. SP Switch error conditions .........................1-19

1-8. Problem messages from the out.top file ....................1-22

1-9. Service Request Number (SRN) table for SP Switch adapters ............1-24

1-10. Switch problem priority listing ........................1-26

2-1. External cable routing ...........................2-11

2-2. SPS Switch data cable chart ........................2-13

2-3. SPS-8 Switch data cable chart ........................2-13

3-1. Service procedure tools ...........................3-2

3-2. Setup output files .............................3-2

3-3. Tuning output files .............................3-2

3-4. Setting switch clock sources .........................3-7

5-1. SPS, SPS-8 Switch assembly (feature) (view 1) ..................5-3

5-2. SPS, SPS-8 Switch assembly (feature) (view 2) ..................5-5

5-3. SPS, SPS-8 Switch assembly (feature) (view 3) ..................5-7

5-4. Switch cables (feature) ...........................5-8

5-5. Multi-switch frame (F/C 2030/1) .......................5-11

viii RS/6000 SP: SP Switch Service Guide

Safety and environmental notices

For general information concerning safety, refer to S229-8124. For a copy of the publication, contact your IBM account representative or the IBM branch office serving your locality.

Electrical Safety for IBM Customer Engineers

Safety notices

The following is a list of all safety notices (in English only) pertaining to SP hardware maintenance tasks from this and other RS/6000 SP hardware publications. Translations of each of the safety notices into other languages are included in

DANGER notices warn you of conditions or procedures that can result in death or severe personal injury.

CAUTION notices warn you of conditions or procedures that can cause personal injury that is neither lethal nor extremely hazardous.

Each notice contains a reference number ( other languages.

RS/6000 SP: Safety Information

SPSFXXXX

) which you can use to help find a specific notice in

Danger notices

DANGER

Do not attempt to open the covers of the power supply. Power supplies are not serviceable and are to be replaced as a unit. (

SPSFD001

)

DANGER

An electrical outlet that is not correctly wired could place hazardous voltage on metal parts of the system or the devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to prevent an electrical shock.

Before installing or removing signal cables, ensure that the power cables for the system unit and all attached devices are unplugged.

When adding or removing any additional devices to or from the system, ensure that the power cables for those devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.

Use one hand, when possible, to connect or disconnect signal cables to prevent a possible shock from touching two surfaces with different electrical potentials.

During an electrical storm, do not connect cables for display stations, printers, telephones, or station protectors for communications lines. (

DANGER

In the U.S., Canada, and Japan, this product has a 4-wire power cable with a 4-prong plug. Use this power cable with a correctly grounded power receptacle to prevent possible electric shock.

SPSFD003

(

)

SPSFD002

)

DANGER

Before you connect the power cable of this product to ac power, verify that the power receptacle is correctly grounded and has the correct voltage. (

DANGER

During an electrical storm, do not connect or disconnect any cable that has a conductive outer surface or a conductive connector. (

DANGER

Switch off power and unplug the machine power cable from the power receptacle, before removing or installing any part that is connected to primary power. (

DANGER

To prevent possible electrical shock during machine installation, relocation, or reconfiguration, connect the primary power cable only after connecting all electrical signal cables. (

DANGER

SPSFD005

SPSFD004

)

SPSFD006

)

SPSFD007

)

High voltage present. Perform ″Lockout safety procedures″ to remove primary power to the frame. (

DANGER

High voltage present. Perform ″Lockout safety procedures″ to remove primary power to the frame (and high-voltage transformer if present). (

DANGER

High voltage present at test points. Use high voltage test probes. (

DANGER

High energy present. Do not short 48V to frame or 48VRtn. Shorting will result in system outage and possible physical injury. (

DANGER

If a unique power module fails, all LEDs will be off. The high voltage LED will be off even though the high voltage is still present. (

SPSFD008

)

SPSFD011

SPSFD012

SPSFD009

)

SPSFD010

)

x RS/6000 SP: SP Switch Service Guide

DANGER

The remaining steps of the procedure contain measurements that are taken with power on. Remember that hazardous voltages are present. (

DANGER

The frame main circuit breaker and the controller must not be switched on again now.

Before disconnecting the power cables from the power receptacles, ensure that the customer’s branch distribution circuit breakers (customer power source circuit breakers) are Off and tagged with DO NOT OPERATE tags, S229-0237. Refer to “Lockout safety procedures” in

System Service Guide

DANGER

Before connecting ac power cabless to electrical outlets, ensure that: v The customer’s branch distribution circuit breakers (customer power source circuit breakers)

are off and tagged with DO NOT OPERATE tags, S229-0237 (or national language equivalent).

v The activities in ″Performing the Customer 50/60 Hz Power Receptacle Safety Check″ have

been performed on all customer power source outlets and cable connectors. (

, before proceeding. (

SPSFD014

SPSFD013

)

RS/6000 SP:

SPSFD015

)

DANGER

Ensure that the customer’s branch distribution circuit breakers (customer power source circuit breakers) to the ac power outlets are off and tagged with DO NOT OPERATE tags, S229-0237 (or national language equivalent). (

DANGER

Both the SEPBU power chassis and the PDU 48 V dc power chassis are field replaceable units (FRUs) which contain NO serviceable parts; they are labeled as such. Do not attempt to isolate or repair these components, since doing so may result in severe injury or even death.

SPSFD017

(

)

SPSFD016

)

Caution notices

CAUTION:

The weight of the PDU assembly, 48 V dc power chassis, and the SEPBU power chassis is greater than 18 Kg (40 lbs). Be careful when removing or installing. Remove all 48 V dc power supplies from the power chassis before removing or installing the power chassis. (

CAUTION:

SPSFC001

)

The unit weight exceeds 18 Kg (40 lbs) and requires two service personnel to lift. (

Safety and environmental notices xi

SPSFC002

)

CAUTION:

The covers are to be closed at all times except for service by trained service personnel.

SPSFC003

(

CAUTION:

When the unit is being serviced, the covers should not be left off or opened while the machine is running unattended. (

CAUTION:

Due to weight of each thin node (under 18 Kg [40 lbs]), use care when removing and replacing thin nodes above shoulder height. (

CAUTION:

)

SPSFC004

)

SPSFC005

)

The wide node weight may exceed 32 Kg (70.5 lbs). (

CAUTION:

Do not open more than one wide node or switch assembly drawer at a time. (

CAUTION:

Make sure the stability foot and wheel chocks are installed on the frame. These are required to maintain frame balance and position during service operations. (

CAUTION:

Outer edges of chassis may be sharp. Care must be taken when removing and installing chassis.

SPSFC009

(

CAUTION:

The ground strip may have sharp edges. (

CAUTION:

Do not remove wide nodes or switch assemblies from the mounting slides. Caution must be observed when working with mounting slides to prevent pinched fingers or accidental release of the unit. (

)

SPSFC011

SPSFC010

)

SPSFC006

)

SPSFC008

SPSFC007

)

CAUTION:

Do not remove the drawer case mounting screws at the bottom of both sides. (

CAUTION:

Once the latch is released, push the drawer closed. Do not pull, as the drawer may disengage from the rails, creating a safety hazard. (

CAUTION:

Due to the weight of each wide node, use care when sliding and closing wide processor nodes above shoulder height. (

SPSFC014

SPSFC013

)

SPSFC012

)

xii RS/6000 SP: SP Switch Service Guide

CAUTION: v When moving frames into position, team members should work together. Using one person on

each corner of the frame can prevent strain.

v In raised floor installations, mechanically safe moldings should be installed around floor

cutouts. Extreme caution should be used when moving frames during installation or removal because of the proximity of floor cutouts to casters. (

CAUTION:

When using step ladder or step stool, be sure that the work surface is level and the step ladder or step stool is in good working order. (

CAUTION:

Portable ladders present a serious safety hazard if not used properly. Follow these general guidelines:

v Make sure the ladder is firm and steady, and has no defective rungs or braces. v Work only on a level surface. v Never use a metal ladder near electrical power lines. v Never overreach. Instead, move the ladder.

Be as careful on a short ladder as on a 30-foot extension ladder. False security can lead to carelessness and falls which can cause painful injuries. (

SPSFC016

)

SPSFC015

SPSFC017

)

CAUTION:

All IBM laser modules are designed so that there is never any human access to laser radiation above a class 1 level during normal operation, user maintenance, or prescribed service conditions. Data processing environments can contain equipment transmitting on system links with laser modules that operate at greater than class 1 power levels. For this reason, never look into the end of an optical fiber cable or open receptacle. Only trained service personnel should perform the inspection or repair of optical fiber cable assemblies and receptacles. (

SPSFC018

)

Laser safety information

The RS/6000 SP might contain certain communication adaptors, such as ESCON or FDDI, which are fiber optic based and use lasers.

Laser Compliance

All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for class 1 laser products. Outside the U.S., they are certified to be in compliance with the IEC 825 (first edition

1984) as a class 1 laser product. Consult the label on each part for laser certification numbers and approval information.

Environmental notices Product recycling and disposal

This product contains materials such as circuit boards, cables, electromagnetic compatibility gaskets, and connectors which might contain lead and copper/beryllium alloys that require special handling and disposal at end of life. Before this unit is disposed of, these materials must be removed and recycled or discarded according to applicable regulations. IBM offers product return programs in several countries. You can find country-specific instructions at www.ibm.com/ibm/environment/products/prp.phtml.

Safety and environmental notices xiii

This product might contain nickel-cadmium or lithium batteries in communication adapters. The batteries must be recycled or disposed of properly. Recycling facilities might not be available in your area. In the United States, IBM has established a collection process for reuse, recycling, or proper disposal of used sealed lead-acid, nickel-cadmium and nickel metal hydride batteries and battery packs from IBM equipment. For information on proper disposal of batteries in this product, please contact IBM at 1-800-426-4333. For information on disposal of batteries outside the United States, contact your local waste disposal or recycling facility.

xiv RS/6000 SP: SP Switch Service Guide

About this book

This book is part of the RS/6000®SP™hardware service library and applies to the RS/6000 SP Switch. Use this book to assist you in performing the following tasks:

v Identify field replaceable unit (FRU) locations v Isolate RS/6000 SP failures using Maintenance Analysis Procedures (MAPs) v Perform diagnostic service procedures v Perform removal and replacement procedures v Identify FRUs and their corresponding part numbers

If you are attempting to isolate an SP system failure, use the Maintenance Analysis Procedures (MAPs) beginning with the Start MAP in complete RS/6000 SP hardware service library, see “Related information”.

RS/6000 SP: System Service Guide

Who should use this book

This book is intended for RS/6000 SP product-trained service personnel.

Related information

The following books make up the complete RS/6000 SP hardware service library:

RS/6000 SP: Safety Information

national languages, which are compiled from all the book in the library.

RS/6000 SP: Installation and Relocation

maintenance agreement and qualification procedures, frame and component identification information.

RS/6000 SP: System Service Guide

Start MAP, and MAPs and parts catalog for the frames and power subsystems. Use this book to begin a diagnostic procedure to isolate a problem to a specific major component of the SP system.

RS/6000 SP: SP Switch Service Guide

RS/6000 SP: SP Switch2 Service Guide

information specific to the SP Switch2.

RS/6000 SP: Uniprocessor Thin and Wide Node Service Guide

MAPs, and parts catalog information specific to all uniprocessor-type nodes.

RS/6000 SP: 604 and 604e SMP High Node Service Guide

and parts catalog information specific to these nodes.

RS/6000 SP: SMP Thin and Wide Node Service Guide

parts catalog information specific to these nodes.

RS/6000 SP: POWER3 SMP High Node Service Guide

parts catalog information specific to this node.

, GA22-7467. Safety notices, in English and translated into other

, GA22-7441. Installation and relocation procedures,

, GA22-7442. General SP system service procedures, the system

, GA22-7443 (this book).

, GA22-7444. Service procedures, MAPs, and parts catalog

, GA22-7446. Service procedures, MAPs,

, GA22-7447. Service procedures, MAPs, and

, GA22-7448. Service procedures, MAPs, and

(GA22-7442). For a listing of the

, GA22-7445. Service procedures,

This book and other RS/6000 SP hardware and software documentation are available both on-line and, for some books, in printed form from the following sources:

v The Web site at http://www.ibm.com/servers/eserver/pseries/library/sp_books/index.html v The Resource Center on the PSSP product media v Printed and CD-ROM versions (which can be ordered from IBM)

For more information on these sources and an extensive listing of RS/6000 SP related publications, see the bibliography in

RS/6000 SP: Installation and Relocation

How to send your comments

Your feedback is important in helping to provide the most accurate and highest quality information. If you have any comments about this book or any other RS/6000 SP documentation:

v Send your comments by e-mail to mhvrcfs@us.ibm.com. Be sure to include the name of the book, the

order number of the book, and, if applicable, the specific location of the text you are commenting on (for example, a page number or table number).

v Fill out one of the forms at the back of this book and return it by mail, by fax, or by giving it to an IBM

representative.

xvi RS/6000 SP: SP Switch Service Guide

Summary of changes

GA22-7443-04

This edition contains replaces GA22-7443-03 and any update versions made to that level and makes them obsolete. This edition contains minor changes and fixes to softcopy cross-book links.

GA22-7443-03

This edition contains replaces GA22-7443-02 and any update versions made to that level and makes them obsolete. This edition contains minor changes and fixes to softcopy cross-book links.

GA22-7443-02

This edition contains replaces GA22-7443-01 and any update versions made to that level and makes them obsolete. This edition contains minor changes and corrections throughout the book.

GA22-7443-01

This edition replaces GA22-7443-00 and makes it obsolete. Added cross-book links for reference links between this publication and the other RS/6000 SP hardware

publications. These links assist navigating between documents, in the softcopy environment, when using the Adobe Acrobat Reader.

GA22-7443-00

First edition of the restructured RS/6000 SP hardware service library. This publication, along with the other SP service publications (see “Related information” on page xv), replaces The Maintenance Information Manuals Volumes 1–4 (GA22-7375, GA22-7376, GA22-7377, and GA22-7378) and makes them obsolete.

xviii RS/6000 SP: SP Switch Service Guide

Chapter 1. Maintenance Analysis Procedures (MAPs)

This chapter provides information for identifying problems and guides you to the most likely failed Field Replaceable Unit (FRU). The MAPs then refer you to the FRU Removal/Replacement procedures for the corrective action.

v “SP Switch description and problem determination (MAP 0590)” v “SP Switch environment (MAP 0600)” on page 1-5 v “SP Switch power (MAP 0610)” on page 1-13 v “SP Switch function (MAP 0620)” on page 1-17

SP Switch MAPs SP Switch description and problem determination (MAP 0590)

Purpose of this MAP

This MAP describes the physical characteristics of each switch type and provides a table (Table 1-1 on page 1-4) containing diagnostic information.

Each switch network has the following components:

v Switch adapter cards (one per processor node) v SP Switch v Switch internal data cables v Switch power cable v Switch wrap plugs (male 77G0818 and female 46H9688 for SPS). Refer to Figure 1-2 on page 1-4 for

views of the wrap plug.

v Switch external data cables (multi-frame only)

Attention:

1. Switch data plug/jack connector pins are easily bent. Check for bent pins on male plugs or bent pin

guides on female jacks if a cable is difficult to plug. Problems with bent pins or pin guides can propagate to new plugs/jacks if not corrected first.

2. All connected SP Switches must be running from the same master clock. If the SP Switches have not

been set properly, all processor nodes in a logical frame will be uninitialized. Refer to “Selecting appropriate switch clocks” on page 3-6 for these procedures.

Refer to Figure 1-1 on page 1-2 for a high-level view of the RS/6000 SP Switch.

Switch connection types

Standard node

Processor nodes in 9076 SP frames are attached to the SP Switches with switch cables.

Dependent node

Switch adapter resides outside of the 9076 SP frame. Each dependent node is a single SP Switch Router Adapter in the 9077 Switch Router. There can be several dependent nodes in each SP Switch Router.

Switch-to-switch

Connections between SP Switches.

SP Switch types

SPS All clocks are distributed through data cables. External clock inputs are selected from J3, J4,

or J5.

Switch description and problem determination (MAP 0590)

FRUs include: Fans, circuit breaker/LED card, switch supervisor card, switch power card(s), inner chassis cable, front chassis cable, complete assembly.

SPS-8 There are only 8 ports. All clocks are distributed through data cables.

FRUs include: Fans, circuit breaker/LED card, switch supervisor card, switch power card(s), inner chassis cable, front chassis cable, complete assembly.

(On external bulkhead)

----

J33

J34J1

----

(On planar)

----

J31

J32 J3

Switch planar

J1 J2

Supervisor bus card

+48Vdc

+12Vdc

J35

J34 J33

+5Vdc -5Vdc +5Vdc -5Vdc

Switch power

supply 2

Switch

supervisor

Switch power

supply 1

card

Inner chassis cable

Cup guide

Green Yellow CB

LEDs

Figure 1-1. SP Switch high-level diagram

RS/6000 SP: SP Switch Service Guide

1-2

Fan

Front chassis cable

Fan

Switch description and problem determination (MAP 0590)

There are two LEDs on the front of each SP Switch. For quick reference, their definitions are as follows:

Environment (Yellow)

Off No environmental problems detected by switch supervisor card. On Warning of environmental condition out of nominal range. Preventative Maintenance should

be scheduled for this switch.

Flashing

Serious environmental condition detected; power shut off.

Power (Green)

Off No 48 V dc power available at the SP Switch. Flashing

Power available at the SP Switch, but switch logic is Off.

On Power available at the SP Switch, and logic is On.

Note: Refer to “Service position procedures” on page 3-9 for placing or removing the SP Switch into or

from service position.

Step 0590-001

Read the following warning and then follow steps to ensure continuity of customer’s jobs in the queue. Attention: Servicing a processor node or SP Switch will interrupt customer usage of the processor node

and the remainder of the switch network. If the switch feature must be replaced in a multi-frame system, refer to “Removing and restoring switch resources” on page 3-7, for information on isolating the SP Switch.

Attention: It is possible that the customer has modified switch cabling from standard configurations; therefore, be careful about relying on node and frame information. Any connector jack numbers will be correct regardless of the customer’s cable configuration, so you may trace the cabling from the jack number if necessary.

1. Have customer complete all active parallel jobs or jobs using switch interface (for example, tape B/U

ADSM), then remove the switch feature from the active configuration. Refer to “Removing and restoring switch resources” on page 3-7, for these procedures.

2. Check for system monitor errors indicating environmental problems with the switch feature. These can

be viewed by issuing the appropriate command from the control workstation:

v errpt -a -N sphwlog | pg (For SSP code levels 1.02 and higher) v Refer to the ″Starting a service call (MAP 0100)″ in

information on the pg command

Note: In a frame with processor nodes, entries for the switch will refer to “node17” or “slot17”. In a

multi-switch frame, switches will be listed as even slot addresses.

3. Determine the SP Switch type (see page 1-1)

4. Refer to Table 1-1 on page 1-4 for a prioritized list of conditions. Find the first condition that describes

your problem, then perform the associated action.

RS/6000 SP: System Service Guide

for more

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-3

Switch description and problem determination (MAP 0590)

Table 1-1. Switch problem diagnostics

Priority Message or condition Action

(1 of 3)

(2 of 3)

(3 of 3)

Notes:

1. out.top is located in the primary node. To find the primary node, issue:

Eprimary

2. Verify that the file has a valid (recent) time stamp using:

ls -l

Environmental problems

v Errpt: “Failure...” v Log: “Shutdown: Voltage...” v Log: “Shutdown: Fan...” v Log: “Shutdown: Temperature...” v Errpt: “Warning...” v Log: “Warning:...” v Environment (Yellow) LED- on or flashing

Power problem

v (Power) Green LED- off or flashing v Switch has no power v All voltages at zero

Switch function problem v Error(s) in /var/adm/SPlogs/css/out.top (see

note)

v Problem(s) with switch_responds v Problem(s) returned from errpt -a -N Worm v Problem(s) detected by CE/customer.

Go to “SP Switch environment (MAP 0600)”

on page 1-5.

Go to “SP Switch power (MAP 0610)” on page 1-13.

Go to “SP Switch function (MAP 0620)” on page 1-17.

P/N 46H9688

P/N 77G0818

Female wrap plug Male wrap plug

Figure 1-2. SP Switch wrap plugs

Notes:

1. SPS advanced diagnostics use the 10 meter data cable provided by the SPS feature bill of material.

2. Advanced cable wrap tests will not run successfully for 15- and 20-meter SPS data cables. If 15- or 20-meter data cables are used, swap/change the suspected cable.

RS/6000 SP: SP Switch Service Guide

1-4

SP Switch environment (MAP 0600)

Purpose of this MAP

This MAP provides diagnostic information for switch problems that are related to the operating environment.

Note: Refer to “Service position procedures” on page 3-9 for placing a switch into the service position or

for removing the switch from the service position.

Step 0600-001

You have arrived at this MAP from Table 1-1 on page 1-4.

1. Perspectives reports “Warning”, “Shutdown”, or “Failure” message associated with SP Switch.

2. Does message indicate “Shutdown” or “Failure”?

v If yes, go to “Step 0600-003”. v No, the message indicates a “Warning”, go to “Step 0600-002”.

Step 0600-002

You received a switch environment “Warning”.

1. Does this same message occur on other SP Switches or on any processor nodes mounted in the same frame as the switch?

v If yes, call the next level of support. v If no, verify that the customer is not experiencing problems with this SP Switch.

– If no problems are being experienced, or this is an N+1 fan or power supply failure, then no

immediate service is required, and service can be deferred until a later date.

are

– If problems

0600-001” and treating this message as a “Shutdown” or “Failure” message.

being experienced, service can be performed now by returning to “Step

Step 0600-003

A Perspectives message indicates a “Shutdown” or “Failure”. This means that a serious environmental condition has been detected in the SP Switch.

Note: If service action has just been completed on this SP Switch, check for loose cables or shorted

conditions in this component.

1. Based on the text of the message, use the information in Table 1-2 to continue service:

Table 1-2. Environmental messages for switches

Condition Action

“...P48OK...” Go to “SP Switch power (MAP 0610)” on page 1-13. “...shutdownP5...”

“...shutdownP12...” “...shutdownN5...”

“...fanfail...” Go to “Step 0600-011”on page 1-7. “...shutdownTemp...” Go to “Step 0600-013” on page 1-9. “...PS1Fail...”

“...PS2Fail...” “...P33High...” “...P33Low...” “...voltP33Range...” “...PSFuseGood...”

Go to “Step 0600-004” on page 1-6.

Go to “Step 0600-018” on page 1-10.

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-5

SP Switch environment (MAP 0600)

Step 0600-004

Perspectives indicated a shutdown condition and Table 1-2 on page 1-5 directed you to this step.

1. One or more of the following conditions exist:

v Voltage out of range: +5 V “shutdownP5” v Voltage out of range: +12 V “shutdownP12” v Voltage out of range: −5 V “shutdownN5”

2. Have the customer remove the SP Switch from the active configuration and power off the SP Switch.

3. Put the switch into service position. Refer to “Service position procedures” on page 3-9.

4. Check the following hardware items:

v Cable conditions at switch supervisor card S00-SP-J102 v Cable conditions at power supply S00-PC-P4 and S00-PC-P6. v Cable conditions of wires, especially the inner chassis cable.

5. Leave the cable disconnected at the switch power card.

6. Does the switch supervisor control cable appear to be okay?

v If yes, go to “Step 0600-005”. v If the switch supervisor control cable (S00-SP-P102) appears to have a problem, go to “Step

0600-011” on page 1-7. Refer to Priority 4 and replace the cable.

Step 0600-005

After placing the switch into the service position, you performed some basic inspections and found that the switch supervisor control cable (S00-SP-P102) appears to be okay.

1. Disconnect S00-PC-P4 and S00-PC-P4 at the power supply.

2. Using a digital multimeter, measure resistance between the appropriate pins.

3. Compare results with values in Table 1-3:

Table 1-3. Switch connector resistance values

Measure from

Voltage

+5 V Pin 1 Pin 2 (black) 1K - 5M +12 V Pin 3 Pin 2 (black) 1K - 5M

−5 V Pin 5

(positive lead)

Pin 7

To GND (negative lead)

Pin 2 (black) Pin 2 (black)

Acceptable range (in ohms)

2-20 2-20

4. Is the measured resistance in the acceptable range?

v If yes, go to “Step 0600-009” on page 1-7. v If no, go to “Step 0600-006”.

Step 0600-006

The resistance value you measured in Table 1-3 was not within an acceptable range.

1. Replace the inner chassis cable.

2. Repeat resistance measurement from “Step 0600-005”.

3. Is the measured resistance in the acceptable range?

v If yes, go to “Step 0600-017” on page 1-10 to verify fix. v If no, go to “Step 0600-007”.

Step 0600-007

You disconnected S00-CL-P5 at the switch clock card but the measured resistance was still outside the acceptable range.

1. Replace the front chassis cable.

2. Repeat resistance measurement from “Step 0600-005”.

RS/6000 SP: SP Switch Service Guide

1-6

SP Switch environment (MAP 0600)

3. Is the measured resistance now within the acceptable range?

v If yes, go to “Step 0600-017” on page 1-10 to verify fix. v If no, go to “Step 0600-008”.

Step 0600-008

You replaced the inner chassis cable and the front chassis cable but the measured resistance is still outside of the acceptable range.

1. This indicates that there is still a problem.

2. Replace the switch supervisor card.

3. Go to “Step 0600-017” on page 1-10 to verify fix.

Step 0600-009

You have voltage shutdown condition, the supervisor control cable appears to be okay, and the resistance value you measured in Table 1-3 on page 1-6 was within an acceptable range. Based on these symptoms, “Step 0600-005” on page 1-6 directed you to this location.

1. Reconnect cable S00-PC-P4 at switch power supply 1.

2. Repeat resistance measurement from “Step 0600-005” on page 1-6.

3. Is the measured resistance within the acceptable range? v If yes, replace switch power supply 1 and the switch supervisor card.

a. Go to “Step 0600-017” on page 1-10 to verify fix.

v If no, go to “Step 0600-010”.

Step 0600-010

With cable S00-PC-P4 reconnected at the switch power supply 1, the measured resistance values were still outside the acceptable range.

1. Reconnect cable S00-PC-P6 at switch power supply 2.

2. Repeat resistance measurement from “Step 0600-005” on page 1-6.

3. Is the measured resistance within the acceptable range? v If yes, replace switch power supply 2.

a. Go to “Step 0600-017” on page 1-10 to verify fix.

v If no, the problem is in the switch supervisor card.

a. Go to “Step 0600-011”, Priority 3.

Step 0600-011

You arrived at this step because you received a “...fanfail...” message or you found a problem with the switch supervisor control cable (S00-SP-P102).

1. One or more of the following conditions exist:

v Warning Fan: “fanwarning1”, “fanwarning2”, ..., “fanwarning5” v Shutdown Fan: “fanfail1”, “fanfail2”, ..., “fanfail5”

2. Have customer remove the SP Switch from the active configuration and power off the SP Switch.

3. Set switch circuit breaker to the Off position.

4. Unplug cables connected to J1 and J2 at the rear of the SP Switch.

5. Remove the front panel assembly from the inner chassis.

6. Use Table 1-4 on page 1-8 to reseat or replace components:

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-7

SP Switch environment (MAP 0600)

Table 1-4. Fan failure diagnostics

Priority Component Action

(1 of 5)

(2 of 5)

(3 of 5)

(4 of 5)

(5 of 5)

Fan 1, 2, 3, 4 or 5

Switch supervisor card

Switch supervisor control cable

All replaced Call next level of support.

a. Check specified fans for blockages or loose cable

connections.

b. Fix any obvious problems and continue at “Step

0600-012”.

c. If you do not find any problems, continue at Priority 2. a. Replace fans as described in Chapter 4, “FRU

removals and replacements” on page 4-1.

b. Continue at “Step 0600-012”. a. Replace the card.

b. Continue at “Step 0600-012”. a. Replace the cable. Refer to Figure 1-3, for cable

connections.

b. Continue at “Step 0600-012”.

Front Chassis CableInner Chassis Cable

P4 (Power Card)

2 x 1

(Switch SV Card)

2 x 20

P6 (Power Card)

2 x 1

P1P3

P2 (Fan 1)

2 x 2

P3 (Fan 2)

2 x 2

P4 (Fan 3)

2 x 2

P7, P8 (CB) P9 (LED)

P5 (Fan 4)

2 x 2

P6 (Fan 5)

2 x 2

Figure 1-3. SP Switch inner chassis and front chassis cables

Step 0600-012

You performed the recommended action in Table 1-4.

1. Component replaced or reseated.

2. Reconnect all cables inside the SP Switch.

3. Install front panel assembly and reinstall front retaining screws (see “Service position procedures” on page 3-9).

4. Connect only power (J1) and supervisor (J2) cables at the rear of the SP Switch.

5. Put the SP Switch’s circuit breaker into the On (‘1’) position.

RS/6000 SP: SP Switch Service Guide

1-8

SP Switch environment (MAP 0600)

6. Check the Environmental (yellow) LED for an ON or FLASHING condition.

7. Is the Environmental (yellow) LED ON or FLASHING? v If the Environmental LED is on or flashing:

a. Put the SP Switch’s circuit breaker into the Off (‘0’) position. b. Return to “Step 0600-011” on page 1-7 and continue service with the next highest priority.

v If the Environmental LED is not on or flashing:

a. You have resolved the problem. b. Go to “Step 0600-017” on page 1-10 to verify fix.

Step 0600-013

Perspectives indicated a shutdown temperature condition and Table 1-2 on page 1-5 directed you to this step.

Temperature is out of specified range; however, no serious electrical current or fan speed problems have been detected.

1. Check for airflow blockage at air intakes and exhaust of the SP Switch and system frame. Also, check air temperatures around the frame, looking for sources of abnormally high temperatures (above 40C or 104F).

2. Is there an obvious airflow blockage or abnormally high temperature source near air intakes?

v If yes, go to “Step 0600-016”. v If no, go to “Step 0600-014”.

Step 0600-014

You have an over temperature condition but you did not find an obvious airflow blockage or abnormally high temperature source near air intakes. This indicates that there is a problem in the switch supervisor card.

1. Have the customer remove the switch from the active configuration and power off the SP Switch.

2. Set the circuit breaker to the Off position. Unplug cables connected to J1 and J2 at rear of the SP Switch.

3. Remove the front panel assembly from the inner chassis.

4. Replace the switch supervisor card.

5. Perform “Switch supervisor self-test” on page 3-4.

6. Does the card pass self-test?

v If yes, go to “Step 0600-015”. v If the card does not pass self-test, check the cable connections to the switch supervisor card. If no

obvious problems are found, call next level of support.

Step 0600-015

The switch supervisor card passed the self-test.

1. Check Environmental (yellow) LED for ON or FLASHING condition.

2. Is the Environmental (yellow) LED ON or FLASHING? v If the Environmental LED is on or flashing, check the cable connections to the switch supervisor

card. If no obvious problems are found, call next level of support.

v If the Environmental LED is not on or flashing:

a. You have resolved the problem. b. Go to “Step 0600-017” on page 1-10 to verify fix.

Step 0600-016

You found an obvious airflow blockage or abnormally high temperature source near air intakes.

1. Have customer remove the switch from the active configuration and power off the SP Switch.

Chapter 1. Maintenance Analysis Procedures (MAPs) 1-9

SP Switch environment (MAP 0600)

2. Remove blockage.

3. If required, put the switch into service position (refer to “Service position procedures” on page 3-9).

4. With all cables replugged and Environmental (yellow) LED OFF, power on the SP Switch.

5. Go to “Step 0600-017” to verify fix.

Step 0600-017

You have repaired or replaced a component.

1. If necessary, reinstall SP Switch cover.

2. If required, take the switch out of the service position (refer to “Service position procedures” on page 3-9).

3. If necessary, reconnect all cables at the rear of the SP Switch.

4. Put the SP Switch’s circuit breaker into the On (‘1’) position.

5. Go to “Step 0620-043” on page 1-36.

Step 0600-018

Perspectives gave you a “Shutdown”, or “Failure” message and Table 1-2 on page 1-5 directed you to this step.

1. One or more of the following conditions exist:

v “...P33Low...” v “...P33High...” v “...Pvolt33Range...” v “...PS1Fail...” v “...PS2Fail...” v “...PSFuseGood...”

2. Have the customer remove the SP Switch from the active configuration and power off the SP Switch.

3. Switch off the circuit breaker.

4. Unplug cables connected to J1 and J2 at rear of the SP Switch.

5. Remove the front panel assembly from the inner chassis.

6. Put the switch into service position (refer to “Service position procedures” on page 3-9).

7. What problem type is given in the condition? v If the condition states that you have a P33 type problem (P33Low, P33High, or voltP33Range), go

to “Step 0600-019”.

v If the condition states that you have a PSxFail or PSxFuseGood problem, go to “Step 0600-023” on

page 1-11.

Step 0600-019

The condition states that you have a P33 type problem (P33Low, P33High, or voltP33Range).

1. Check cable conditions at switch supervisor card S00-SC-P5

2. Check cable conditions at switch power supply S00-PC-P4 and S00-PC-P6.

3. Do the inner chassis cables appear to be okay? v If the inner chassis cables appear to be okay and the condition is P33low or voltP33Range,goto

“Step 0600-020”.

v If the inner chassis cables appear to be okay and the condition is P33High, go to “Step 0600-027”

on page 1-12.

v If the inner chassis cables do not appear to be okay, go to “Step 0600-011” on page 1-7, Priority 4

and replace the cables.

Step 0600-020

You have a P33low or voltP33Range condition and the inner chassis cables appear to be okay.

1. Disconnect connectors S00-PC-P4, S00-PC-P6 at the power cards and S00-PC-P5 at the supervisor card.

1-10

RS/6000 SP: SP Switch Service Guide

+ 84 hidden pages

IBM RS-6000 SP User Manual

Specifications and Main Features

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About this book

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Summary of changes

GA22-7443-04

GA22-7443-03

GA22-7443-02

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GA22-7443-00

Chapter 1. Maintenance Analysis Procedures (MAPs)

Step 0590-001

SP Switch environment (MAP 0600)

Step 0600-001

Step 0600-002

Step 0600-003

Step 0600-004

Step 0600-005

Step 0600-006

Step 0600-007

Step 0600-008

Step 0600-009

Step 0600-010

Step 0600-011

Step 0600-012

Step 0600-013

Step 0600-014

Step 0600-015

Step 0600-016

Step 0600-017

Step 0600-018

Step 0600-019

Step 0600-020