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RS/6000 SP IBM
SP Switch2 Service Guide
GA22-7444-03
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RS/6000 SP IBM SP Switch2 Service Guide GA22-7444-03
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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. Fourth edition (April 2002) 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 Americ
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Contents Figures .................................... v Tables .................................... vii Safety and environmental notices.......................... ix Safety notices (in English) .............................ix Danger notices.................................ix Caution notices ................................xi Laser safety information............................. xiii Environmental notices............................... xiii Product recycling and disposal .........................
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Removing and restoring switch resources .......................3-9 Removing an SP Switch2 from the active configuration .................3-9 Restoring an SP Switch2 to the active configuration ..................3-9 Using Perspectives to fence and unfence nodes attached to the switch........... 3-10 Service position procedures............................ 3-10 Placing an SP Switch2 into service position..................... 3-10 Replacing an SP Switch2 from service position....................3-11
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Figures 1-1. SP Switch2 Assembly High-Level Diagram....................1-3 1-2. SP Switch2 Wrap Plugs...........................1-5 1-3. SP Switch2 Chassis Assembly........................1-11 2-1. Front view of frame locations.........................2-3 2-2. Front view of multi-switch frame locations ....................2-4 2-3. Rear view of frame locations.........................2-5 2-4. SP Switch2 high level planar view.......................2-7 2-5. RS/6000 SP connector details (as seen at
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vi RS/6000 SP: SP Switch2 Service Guide
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Tables 1-1. Switch Problem Diagnostics .........................1-5 1-2. SP Switch2 supervisor LED indications .....................1-6 1-3. Perspectives SP Switch2 status indicators....................1-9 1-4. Fan Failure Diagnostics .......................... 1-10 1-5. Power supply failure diagnostics ....................... 1-12 1-6. SP Switch2 error conditions......................... 1-19 1-7. Problem from the out.top file ........................ 1-22 1-8. Service Request Numbers (SRNs) fo
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viii RS/6000 SP: SP Switch2 Service Guide
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Safety and environmental notices Safety notices (in English) For general information concerning safety, refer to Electrical Safety for IBM Customer Engineers (S229-8124). For a copy of this publication, contact your IBM marketing representative or the IBM branch office serving your locality. 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 in
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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. (SPSFD004) DANGER During an electrical storm, do not connect or disconnect any cable that has a conductive outer surface or a conductive connector. (SPSFD005) 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. (SPSFD006) DANGER To prevent pos
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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 RS/6000 SP: System Service Guide, before proceeding. (SPSFD014) DANGER Before connecting ac power cables to electrical outlets, ensure that:
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CAUTION: Due to weight of each thin node (under 18 Kg [40 lbs]), use care when removing and replacing thin nodes above shoulder height. (SPSFC005) CAUTION: The wide node weight may exceed 32 Kg (70.5 lbs). (SPSFC006) CAUTION: Do not open more than one wide node or switch assembly drawer at a time. (SPSFC007) 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. (SPSFC008) CAUTION: Ou
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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. (SPSFC016) 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
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xiv RS/6000 SP: SP Switch2 Service Guide
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About this book This book covers the SP Switch2 only. Refer to RS/6000 SP: SP Switch Service Guide, GA22-7443 for information related to the SP Switch. ® ™ This book is to help you, as a customer engineer diagnose and repair an RS/6000 SP SP Switch2 by 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 Ide
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User’s responsibilities ® Before calling IBM for service, the system administrator should use the problem determination section of ® the Parallel System Support Programs for AIX : Diagnosis Guide (GA22-7350), for initial problem determination. If there is nothing wrong with the customer operating procedures, customer-supplied cables, or the power source, the customer should then call IBM for service. How to use this book This book is intended for RS/6000 SP product-trained service personnel. Whe
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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. Switch MAPs v “Switch description and problem determination (MAP 0590)” v “Switch supervisor communications (MAP 0595)” on page 1-6 v “Switch environment (MAP 0600)” on page 1-9 v “Switch power (MAP 0610)” on page 1-13 v “Switc
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Switch Description and Problem Determination (MAP 0590) Switch Connection Types Standard Node Processor nodes in 9076 SP frames are attached to the switches with switch cables. Switch-to-Switch Connections between switches. Switch Assembly Description SP Switch2 Each switch chip has its own clock and all clocks communicate through the switch data cables. Each switch provides a maximum of 16 switch-to-node ports and 16 switch-to-switch ports. FRUs include: Fans, circuit breaker assembly, LED brac
