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Silicon Graphics 2400 Owner's Manual

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SGI
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2400 and 2800 Server
Owner's Guide
Document Number 007-4192-001

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Summary of Contents for Silicon Graphics 2400

  • Page 1 ™ 2400 and 2800 Server Owner’s Guide Document Number 007-4192-001...
  • Page 2 FAR, or in the DOD or NASA FAR Supplement. Unpublished rights reserved under the Copyright Laws of the United States. Contractor/manufacturer is SGI, 1600 Amphitheatre Pkwy., Mountain View, CA 94043-1351. Shielded Cables This product requires the use of external shielded cables in order to maintain compliance with Part 15 of the FCC rules.
  • Page 3 by writing to the U.S. Government Printing Office, Superintendent of Documents, Mail Stop SSOP, Washington, D.C. 20402-9328, ISBN 0-16-041736-8. VDE 0871/6.78 This equipment has been tested to and is in compliance with the Level A limits per VDE 0871. International Special Committee on Radio Interference (CISPR) This equipment has been tested to and is in compliance with the Class A limits per CISPR publication 22, Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment;...
  • Page 4 VCCI Class 1 Statement for Japan Chinese Class A Regulatory Notice IRIX is a registered trademark and SGI, the SGI logo, Origin Vault, S2MP, IRIS InSight, and XIO are trademarks of Silicon Graphics, Inc. CrayLink is a trademark of Cray Research, Inc. VME is a trademark of Motorola. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

  • Page 5: Table Of Contents

    Online Man Pages xvii Release Notes xviii World Wide Web Accessible Documentation xviii Conventions xix Introducing the SGI 2400 and 2800 Server Systems 1 System Features 1 Hardware Overview 4 About the SGI 2400 and 2800 9 CrayLink Interconnect 11...
  • Page 6 Contents Major Components 21 System Controller 22 BaseIO Board 25 CPU Node Board 26 Router Boards 30 Power Distribution Unit (PDU) 32 CrayLink Interconnect 32 PCI Carrier Assembly 34 Interface and Cabling Information 35 The Ethernet Interface Connection 36 Standard Serial Ports 38 Standard SCSI Connector 40 System Configurations 43 Overview 43...
  • Page 7 Contents General Procedures 82 Powering Off a Rackmount System 82 Opening the Drive Door 89 Opening the Cable Cover Door 90 Specific Procedures 91 Removing a Drive Module 91 Removing the Facade 94 Removing the System Controller and CD-ROM Module 96 XIO Board Slots 98 Using the System Controller 99 MMSC 99...

  • Page 9: List Of Figures

    List of Figures Information Sources for the SGI 2400 and 2800 Rackmount System xvi Figure i System Owner’s Guide xvii Figure ii IRIX Admin: Software Guide xvii Figure iii IRIS InSight Icon xvii Figure iv SGI 2400 Rackmount Server System 2...
  • Page 10 Connecting a Terminal 61 Figure 5-1 Installing an SCA Drive 64 Figure 5-2 SCSI Hardwire Addresses for the SGI 2400 and 2800 Server Module 65 Figure 5-3 Installing a CD-ROM Into an SGI 2400 or 2800 Chassis 67 Figure 5-4...
  • Page 11 List of Figures MMSC to MMSC 10BaseT Ethernet Cabling (2 racks) 106 Figure 7-6 MMSC to 10BaseT-Hub 1BaseT Ethernet Cabling (2 racks) 107 Figure 7-7 Processor Assembly Location in Rack 108 Figure 7-8 MSC Status Panel, Serial Connector, and Switches 109 Figure 7-9 System Controller Rear Serial Connector 111 Figure 7-10...

  • Page 13: List Of Tables

    List of Tables SGI 2400 and 2800 Major Components 18 Table 2-1 BaseIO Connectors 26 Table 2-2 Ethernet 100-BASE T Ethernet Port Pin Assignments 36 Table 3-1 68-Pin Single-Ended, High-Density SCSI Pinouts 40 Table 3-2 Single Module Chassis Configurations 47...

  • Page 15: About This Guide

    About This Guide Welcome to the SGI 2400 and 2800 server systems. The SGI 2400 and 2800 Server Owner’s Guide is your complete guide to operating your rackmount system. Specifically, it tells you how to • set up your SGI 2400 and 2800 rackmount server and turn it on •...

  • Page 16: Finding The Information You Need

    About This Guide Finding the Information You Need The SGI 2400 and 2800 ships with the following sources of information, as shown in Figure i. • IRIX Admin: Software Installation and Licensing • IRIX Release Notes (on the CD) •...

  • Page 17: Sgi 2400 And 2800 Server Owner's Guide

    About This Guide SGI 2400 and 2800 Server Owner’s Guide SGI 2200 Server Owner's Guide Refer to this manual (see Figure ii) to set up the system and install hardware options, or to find solutions when you suspect there is a hardware problem. In addition, it contains basic information on installing and removing optional software.

  • Page 18: Release Notes

    For more information, see the relnotes(1) and grelnotes(1) man pages. World Wide Web Accessible Documentation SGI makes its manuals available in a variety of formats via the World Wide Web (WWW). Using your Web browser, open the following URL: http://techpubs.sgi.com/library Enter a keyword search, or search by title to find the information or manual you need.

  • Page 19: Conventions

    About This Guide Conventions The SGI 2400 and 2800 Server Owner’s Guide uses these conventions: • References to documents are in italics. • References to other chapters and sections within this guide are in quotation marks. • Names of IRIX man pages or commands that you type at the shell prompt are in italics as are IRIX filenames.

  • Page 21: Introducing The Sgi 2400 And 2800 Server Systems

    2 to 16 CPUs, 64 MB to 32 GB of main memory and can provide a wide variety of I/O interfaces (see Figure 1-1). The SGI 2400 server system uses up to four racks (64 CPUs) but does not use a metarouter. The SGI 2800 multiple rack (or multirack) metarouter configuration has up to 256 processors and up to 512 GB of main memory (see...

  • Page 22: Figure 1-1 Sgi 2400 Rackmount Server System

    Chapter 1: Introducing the SGI 2400 and 2800 Server Systems Figure 1-1 SGI 2400 Rackmount Server System...

  • Page 23: Figure 1-2 Sgi 2400 Multirack System Configuration Example

    System Features Figure 1-2 SGI 2400 Multirack System Configuration Example...

  • Page 24: Hardware Overview

    Chapter 1: Introducing the SGI 2400 and 2800 Server Systems Figure 1-3 SGI 2400 Multirack Configuration (Four Racks Shown) Hardware Overview As shown in Figure 1-4, a single rackmount system can consist of up to two fully integrated and independent subsystems—Module A and Module B. Each of the modules in Figure 1-4 has a dedicated System Controller, which monitors module status.
  • Page 25 16 modules. For more information on the different rack configurations, see Chapter 4, “System Configurations.” Figure 1-5 provides an overall block diagram of an SGI 2400 server rack system. The major hardware components include the: •...

  • Page 26: Figure 1-4 Sgi 2400 Rackmount Chassis (Side Panel Removed)

    Chapter 1: Introducing the SGI 2400 and 2800 Server Systems Module B CrayLink interconnect Module A CrayLink interconnect SGI 2400 Rackmount Chassis (Side Panel Removed) Figure 1-4...

  • Page 27: Figure 1-5 Rackmount Server Functional Block Diagram

    Hardware Overview Rear Module Diagram Router 2 Router 1 Node slots XIO slots XBOW Block Diagram Node 1 Node2 Router External connections (to router boards in other chassis) Node 3 Module B XBOW Node 4 Router External connections (to router boards in other chassis) XBOW Node 1...

  • Page 28: Figure 1-6 A Look Inside The Module Chassis

    Chapter 1: Introducing the SGI 2400 and 2800 Server Systems Routers Module System Controller CD-ROM Node 4 Node 3 Node 2 Node 1 Xbow ASICs 64-bit processors Midplane I/O board Rear of module A Look Inside the Module Chassis Figure 1-6...

  • Page 29: About The Sgi 2400 And 2800

    About the SGI 2400 and 2800 About the SGI 2400 and 2800 As illustrated in Figure 1-7, the server is a number of processing modules linked together by the CrayLink Interconnect. Each processing module contains either one or two processors, a portion of main memory, a directory to maintain cache coherence, and two interfaces: one that connects to I/O devices and another that links system nodes through the CrayLink Interconnect.

  • Page 30: Figure 1-7 Modules In An Sgi 2400 Or 2800 System

    Chapter 1: Introducing the SGI 2400 and 2800 Server Systems Node Node 64-bit 64-bit board Cache Cache Directory/ Main Memory Router CrayLink Interconnect Node Node board board Router Router Router Node Router Node board board CrayLink Interconnect Router Router Router...

  • Page 31: Craylink Interconnect

    CrayLink Interconnect is a multidimensional mesh. The SGI 2400 and 2800 servers are highly scalable - the SGI 2400 server can range in size from 2 to 32 processors while the SGI 2800 goes from 34 to 128 processors. As you add modules, you add to and scale the system bandwidth.

  • Page 32: Xio Slots

    This differs from previous-generation SGI systems, in which memory is centrally located on and only accessible over a single shared bus. By distributing the SGI 2400 and 2800 memory among processors, memory latency is reduced. Accessing memory near a processor takes less time than accessing remote memory.

  • Page 33: Irix

    About the SGI 2400 and 2800 The SGI 2400 and 2800 memory is located in a single shared address space. Memory within this space is distributed amongst all the processors, and is accessible over the CrayLink Interconnect. I/O devices are also distributed within a shared address space;...

  • Page 35: Chassis Tour

    This chapter provides an overview of the rackmount system chassis and a description of the controls, connectors, and indicators. Overview Figure 2-1 and Figure 2-2 show the major parts of the SGI 2400 and 2800 rackmount system. These parts are briefly described in Table 2-1.

  • Page 36: Figure 2-1 Sgi 2400 And 2800 Rackmount System (Front View)

    System disk Facade Module A CrayLink Interconnect Cable bail Router board Cable comb cover Connector cover Cable comb Door Figure 2-1 SGI 2400 and 2800 Rackmount System (Front View) In Figure 2-1, the side panel is removed for clarity. Note:...

  • Page 37: Figure 2-2 Sgi 2400 And 2800 Rackmount Rear View

    (PDU) PDU power switch PDU off PDU on Node boards BaseIO XIO slots Main power switch XIO cable guide Figure 2-2 SGI 2400 and 2800 Rackmount Rear View In Figure 2-2, the side panel is removed for clarity. Note:...
  • Page 38 Chapter 2: Chassis Tour Table 2-1 SGI 2400 and 2800 Major Components Component Description 1. Module A/Module B The modules shown in Figure 2-1 are independent computing subsystems with a separate set of CPUs (central processing units) disks, System Controller, and I/O connections. There can be up to two modules in a rack and up to sixteen modules in a multirack configuration.
  • Page 39 Overview Table 2-1 (continued) SGI 2400 and 2800 Major Components Component Description 9. Intake baffle This baffle helps enable proper airflow through the rack. Note that the top of the rack has a vent as well. Airflow is generally pulled in from the top and middle of the rack and exhausted through the back and bottom of the rack.

  • Page 40: Board Configuration And Layout

    The PDU switch is the main circuit breaker for the entire rack assembly. 21. Node board The Node board is the main processing board in the SGI 2400 or 2800 system. It contains one or two 64-bit CPUs, the hub (which provides an interface to the I/O subsystem and the CrayLink Interconnect), a portion of main memory, as well as directory memory.

  • Page 41: Major Components

    Router Node slots XIO slots Figure 2-3 Board Configuration and Layout for System Module Major Components This section describes major hardware components for the SGI 2400 and 2800 rack, which includes the following: • System Controller • BaseIO board •...

  • Page 42: System Controller

    Chapter 2: Chassis Tour System Controller There are two types of System Controllers used in the servers—a single module System Controller (MSC) and a multimodule System Controller (MMSC) and display. The MSC does not have the same functional abilities as the MMSC. For detailed information on operating the System Controller, see Chapter 7, “Using the System Controller.”...

  • Page 43: Figure 2-4 Msc And Display

    Major Components Module Module switch reset switch Fan hi-speed AC OK LED indicator DC OK LED Ambient over- temperature 8-digit LED display Security key switch 8-pin mini DIN diagnostic port ti c D ia g n o s P o r t Standby Diagnostic Figure 2-4...

  • Page 44: Figure 2-5 Mmsc Display (For Entire Rack)

    Chapter 2: Chassis Tour Display panel Menu/Cancel Focus Action View Configure Irix OS View Power Up Power Down Power Cycle Reset 0 1 2 3 4 5 6 7 Processors user system intr io graphics Current target module all Cursor placement Execute MMSC Display (for Entire Rack) Figure 2-5...

  • Page 45: Baseio Board

    Major Components BaseIO Board The BaseIO board provides the basic I/O connections for the system. Figure 2-6 shows the BaseIO board and Table 2-2 describes the connector functions. 68-pin SCSI connector Additional tty_2 tty_1 serial port Serial console port Interrupt out Interrupt in 1 2 3 4 LEDs...

  • Page 46: Cpu Node Board

    Hub ASIC 64-bit Processors The superscalar 64-bit CPU is the main processor for the SGI 2400 and 2800 servers. There can be one or two 64-bit CPUs on each Node board. You may hear a module or rack referred to as an 8“P” or 16“P” system. The P stands for processor. An 8P system has eight processors.
  • Page 47 Major Components Premium Directory Memory The optional premium directory DIMMs are required only for configurations with more than 16 Node boards. These directory memory DIMMs maintain cache coherence in large system configurations. Cache coherence helps provide data consistency when multiple processors need to access the same piece of memory.

  • Page 48: Figure 2-7 Node Board Positioning In The Chassis

    Chapter 2: Chassis Tour Node 3 Node 2 Node 4 Node 1 Figure 2-7 Node Board Positioning in the Chassis...

  • Page 49: Figure 2-8 Front View Of Node Board Showing Bulkhead

    Major Components Bulk head LEDs Compression mounting bolt Compression mounting bolt Figure 2-8 Front View of Node Board Showing Bulkhead...

  • Page 50: Router Boards

    If a module has only one Node board, no Router is required. A Router board is required only when there are two or more Node boards. The Null and Star Router boards are primarily used in SGI 2100 or 2200 deskside Note:...

  • Page 51: Figure 2-9 System Router Boards

    Major Components One external port that connects Three external only to companion Router ports for rack Router interconnection board port fabric Null Router Board Star Router Board Rack Router Board Figure 2-9 System Router Boards Null Router Board The Null router board is used in deskside systems with only two Node boards. The Null router provides a low-cost method to connect two Node boards.

  • Page 52: Power Distribution Unit (Pdu)

    Chapter 2: Chassis Tour Star Router Board The Star Router board is used in deskside systems that have three or four Node boards. The Star Router is always paired with a Rack Router board for proper operation. This cost-effective router board provides connections with all the Node boards in a module but cannot be used for CrayLink Interconnect linking.

  • Page 53: Figure 2-10 Craylink Interconnect, Xpress Link, And Crosstown Cables

    • Avoid “hot plugging” in or removing cables while both server modules are up and running. This can hang or crash the entire SGI 2400 or 2800 configuration. Caution: Additional router cable connections should be performed only by Silicon Graphics-certified personnel.

  • Page 54: Pci Carrier Assembly

    Chapter 2: Chassis Tour Crosstown Cable The crosstown cables are similar to the CrayLink Interconnect and Xpress cables, so the same cautionary guidelines apply. The crosstown cables are encased in a plastic-ribbed coating and are slightly more ruggedized. The cables are used to connect to external peripherals and provide the same I/O performance as the CrayLink Interconnects and Xpress link cables.

  • Page 55: Interface And Cabling Information

    Chapter 3 Interface and Cabling Information When your SGI 2400 or 2800 rackmount system is initially set up in the work area, a trained system support engineering (SSE) technician should configure and connect it. Your SGI 2400 or 2800 rackmount system is fully functional as a standalone server using Ethernet, modem, optional ATM, HIPPI, or other interconnect technologies.

  • Page 56: The Ethernet Interface Connection

    Chapter 3: Interface and Cabling Information The Ethernet Interface Connection The system comes with a single 100 Base-T 8-pin Ethernet connector. Optional boards supporting additional Ethernet connectors are available. Table 3-1 shows the cable pinout assignments for the Ethernet 100-BASE T Ethernet port. Table 3-1 Ethernet 100-BASE T Ethernet Port Pin Assignments Assignment...

  • Page 57: Figure 3-1 Standard Ethernet On Sgi 2400 And 2800 Rackmount

    Pin 1 Transmit + Pin 2 Transmit - Pin 3 Receive + Pin 4 Reserved Pin 5 Reserved Pin 6 Receive - Pin 7 Reserved Pin 8 Reserved 100 Base-T connector Figure 3-1 Standard Ethernet on SGI 2400 and 2800 Rackmount...

  • Page 58: Standard Serial Ports

    Chapter 3: Interface and Cabling Information Standard Serial Ports Each SGI 2400 and 2800 rackmount system comes with two standard 9-pin serial ports. These ports can support either RS-232 or RS-422 interface devices. Figure 3-2 shows the location and pinouts for a serial port. Optional additional serial ports are also available.

  • Page 59: Figure 3-2 Serial Port Location And Pinouts

    Standard Serial Ports Console Serial port serial port Pin 5 Ground Pin 9 Ringing Indicator (RI) Pin 4 Data Terminal Pin 8 Clear Ready (DTR) to Send (CTS) Pin 3 Transmit Pin 7 Request to Data (TD) Send (RTS) Pin 2 Receive Pin 6 Data Set Data (RD) Ready (DSR)

  • Page 60: Standard Scsi Connector

    Chapter 3: Interface and Cabling Information Standard SCSI Connector A single, external 68-pin SCSI connector is provided on the BaseIO panel (see Figure 3-3). This connector supports both Ultra SCSI and SCSI-2 devices. The connector sends single-ended SCSI signals only. Optional additional SCSI ports can be implemented using XIO option boards.
  • Page 61 Standard SCSI Connector Table 3-2 (continued) 68-Pin Single-Ended, High-Density SCSI Pinouts Signal Name Pin Number Pin Number Signal Name Ground Ground TERMPWR TERMPWR TERMPWR TERMPWR Reserved Reserved Ground Ground Ground -ATN Ground Ground Ground -BSY Ground -ACK Ground -RST Ground -MSG Ground -SEL...

  • Page 62: Figure 3-3 68-Pin Scsi Connector

    Chapter 3: Interface and Cabling Information SCSI connector (68-pin) Pin 1 Pin 35 Pin 34 Pin 68 Figure 3-3 68-Pin SCSI Connector...

  • Page 63: System Configurations

    • a drive box (Vault) The SGI 2400 or 2800 chassis is housed in a rack system that comes with a multimodule System Controller (MMSC) and display, and also provides cable management hardware for CrayLink Interconnect and XIO cables.

  • Page 64: Basic System Configurations

    SGI 2400 server system expands from a basic building block module to a multimodule, multirack configuration. As Figure 4-1 shows, a base module (also known as the SGI 2200 server) supports 1 to 8 processors. To go beyond eight processors, a rackmount system is needed. Figure 4-2 shows a configurations with more than 16 processors or 8 Node boards requiring at least...

  • Page 65: Figure 4-1 Basic Module Configurations

    Basic System Configurations Number of Router Board Schematic Configuration Node Boards Types 1 Node Board (up to 2 processors) 64-bit Processor None 64-bit Processor 2 Node Boards (up to 4 processors) Null Router Board 3 Node Boards (up to 6 processors) Router Board Star Router Board...

  • Page 66: Figure 4-2 Sgi 2400 Rackmount Configuration Examples

    8 Node Boards (up to 16 processors) Rack System With Xpress Links 16 Node Boards (up to 32 processors) Multi Rack System With Xpress Links 32 Node Boards (up to 64 processors) Multi Rack System Figure 4-2 SGI 2400 Rackmount Configuration Examples...

  • Page 67: Rackmount Configurations

    Rackmount Configurations Rackmount Configurations Figure 4-3 through Figure 4-5 show different single rackmount SGI 2400 configurations. The single rackmount systems have either one or two modules. Table 4-1 and Table 4-2 summarize the range of hardware components that can be supported by either a one or two-module configuration.
  • Page 68 Vault drive boxes and two to eight CPUs. If desired, this rack can be cabled to other racks using the CrayLink Interconnect. This allows the other SGI systems in the configuration to have high-speed access to those drives.

  • Page 69: Figure 4-3 Single Server Module In A Rack With Four Vault Drive Boxes

    Rackmount Configurations Drive enclosure door Drive enclosures module Figure 4-3 Single Server Module in a Rack with Four Vault Drive Boxes...
  • Page 70 Chapter 4: System Configurations Figure 4-4 shows a 16P (or 16 CPU) rackmount system attached with CrayLink Interconnect cabling. This configuration requires two Rack Router boards in each module and supports a maximum of sixteen CPUs. In this system setup, the hardware resources (such as main memory and disk storage capacity) from one module can be quickly and efficiently accessed by the other system module.

  • Page 71: Figure 4-4 16P Sgi 2400 Server

    Rackmount Configurations Node boards Midplane Router boards R1 R2 R3 R4 Figure 4-4 16P SGI 2400 Server...

  • Page 72: Figure 4-5 16P Sgi 2400 Rackmount Server With Xpress Links

    Chapter 4: System Configurations Node boards Midplane Router boards R1 R2 Xpress links R3 R4 Figure 4-5 16P SGI 2400 Rackmount Server with Xpress Links Xpress links can double interconnect bandwidth in single rack systems. Note:...

  • Page 73: Multirack Configurations

    Multirack Configurations Multirack Configurations Sample SGI 2400 or 2800 multirack configurations are shown in Figure 4-6 through Figure 4-9. These can be large system configurations requiring a significant amount of floor space, along with special power and cooling considerations. The multirack configuration can have between 8 and 256 processors, up to 512 GB of main memory, and...

  • Page 74: Figure 4-6 32P Configuration

    Chapter 4: System Configurations It is possible for a configuration to have between 4 and 32 processors. The 16P and Note: 32P configurations are used because they represent the maximum number of processors for one- or two-rack systems. The configuration shown in Figure 4-7 uses Xpress links to increase the transmission throughput between modules and racks.

  • Page 75: Figure 4-7 32P With Express Links

    Multirack Configurations Node boards Router boards R1 R2 R1 R2 R3 R4 R3 R4 Xpress Links Figure 4-7 32P with Express Links...

  • Page 76: Figure 4-8 64P Configuration

    Chapter 4: System Configurations This configuration consists of four racks, eight system modules, and 32 Node boards. As Figure 4-8 shows, all of the available Router ports are now in use. The 64P configuration is the largest one that can be supported using the Rack Router board. To go beyond 64P, requires the use of a meta router chassis.

  • Page 77: Figure 4-9 Sgi 2800 128P Configuration

    Multirack Configurations 2 3 4 Cray Router Figure 4-9 SGI 2800 128P Configuration...

  • Page 79: System Configuration And Operation

    Chapter 5 System Configuration and Operation This chapter describes how to configure and operate your system correctly. Warning: The rackmount system operates on 200-240 VAC. Use extreme caution when working around this voltage. Never install or remove power cords without first turning off the equipment.

  • Page 80: Connecting Your Terminal

    SGI system support engineer before plugging in the terminal power cable. Use only the specified cable to connect the terminal to the system chassis. The server uses PC-style serial cables. You cannot use older style SGI serial cables. See “Standard Serial Ports” on page 38 for cable pinout information.

  • Page 81: Figure 5-1 Connecting A Terminal

    Connecting Your Terminal Console port Terminal Figure 5-1 Connecting a Terminal...

  • Page 82: Scsi Configuration Requirements

    Chapter 5: System Configuration and Operation SCSI Configuration Requirements All SGI 2400 and 2800 rackmount systems are configured with one or two internal SCSI drive bays using single-attachment connector (SCA) drives (see Figure 5-2). These drives must all be single-ended, Ultra SCSI. These Ultra SCSI drives are capable of transmitting up to 40 MB/sec.

  • Page 83: Loading The Single Connector Assembly (Sca) Drives Into The System

    Loading the Single Connector Assembly (SCA) Drives Into the System The SGI 2400 and 2800 use an SCA sled assembly for mounting into the drive bay. Disk drive modules are aligned vertically at the front of the chassis, as shown in Figure 5-2.

  • Page 84: Figure 5-2 Installing An Sca Drive

    Chapter 5: System Configuration and Operation Blank Handle in SCA drive closed position Installing an SCA Drive Figure 5-2...

  • Page 85: Figure 5-3 Scsi Hardwire Addresses For The Sgi 2400 And 2800 Server Module

    SCSI ID 2 SCSI ID 4 CD-ROM SCA drive 1 SCA drive 3 SCA drive 5 SCSI ID 6 SCSI ID 1 SCSI ID 3 SCSI ID 5 Figure 5-3 SCSI Hardwire Addresses for the SGI 2400 and 2800 Server Module...

  • Page 86: Loading The Cd-Rom

    Chapter 5: System Configuration and Operation Loading the CD-ROM The CD-ROM installs vertically into the chassis. Follow these instructions to load the CD-ROM into the drive: 1. Press the eject button to release the CD-ROM carrier (see Figure 5-4). 2. Hold the CD-ROM diskette by the edges and place it into the holder clips as shown in Figure 5-4.

  • Page 87: Figure 5-4 Installing A Cd-Rom Into An Sgi 2400 Or 2800 Chassis

    Loading the CD-ROM Retainers Retainers Figure 5-4 Installing a CD-ROM Into an SGI 2400 or 2800 Chassis...

  • Page 88: Connecting Your System To An Ethernet Network

    Chapter 5: System Configuration and Operation Connecting Your System to an Ethernet Network Each server comes with a 100BaseT Ethernet connector on each rack. Some racks may have two Ethernet connector ports (one on each system module). Follow these instructions to connect an Ethernet drop to your system. 1.

  • Page 89: Initially Powering On The System

    2. Insert the PDU system power cable into the 200-240 VAC wall receptacle (see Figure 5-6). Warning: The SGI 2400 and 2800 rackmount systems operate on 200-240 VAC. Use extreme caution when working around this voltage. Never install or remove power cords without first turning off the equipment.

  • Page 90: Figure 5-6 Connecting The System Power Cable

    Chapter 5: System Configuration and Operation PDU power cable plug 220 Volt power source Connecting the System Power Cable Figure 5-6...

  • Page 91: Figure 5-7 Turning On The Pdu

    Initially Powering On the System PDU power switch PDU off PDU on Figure 5-7 Turning On the PDU...

  • Page 92: Figure 5-8 Powering On The System (Rear View Of Chassis)

    Chapter 5: System Configuration and Operation Module power switch Figure 5-8 Powering On the System (Rear View of Chassis)

  • Page 93: Booting Your System

    Booting Your System Booting Your System Boot your system by performing the following steps: 1. Power on the system, as described in the preceding section, “Powering On the System.” 2. Go the front the chassis module and insert the system key into the key switch, located to the right of the module System Controller’s (MSC) display.

  • Page 94: Figure 5-9 Entry-Level System Controller Key Positions

    Chapter 5: System Configuration and Operation Module Module switch reset switch Fan hi-speed AC OK LED indicator DC OK LED Ambient over- temperature 8-digit LED display Security key switch 8-pin mini DIN diagnostic port ti c D ia g n o s P o r t Standby Diagnostic...
  • Page 95 Booting Your System The system’s progress can be monitored on the MSC’s display. As the module powering on, you should see the messages similar to the following: POWER ON VERS x.xx (PROM version number) MOD (module number, such as MOD 1, etc) Do not press any of the front panel buttons while the system is booting.

  • Page 96: Installing The Operating System

    Chapter 5: System Configuration and Operation Installing the Operating System The basic IRIX operating system is factory installed on your system disk. No software installation is required. If additional software is desired, it must be downloaded either locally (using a CD-ROM drive) or remotely over the network. See the IRIX Admin: Disks and Filesystems manual for additional information about mounting and configuring drives.

  • Page 97: Resetting Your System

    Resetting Your System Resetting Your System You can reset the system using the MMSC display (see Chapter 7, “Using the System Controller”). You can also reset your individual system modules by turning the key switch on the System Controller to the Diagnostics position. Use the scroll buttons to bring up the Reset menu.

  • Page 99: Removing And Replacing Customer-Replaceable Units

    Removing and Replacing Customer-Replaceable Units This chapter describes the installation and removal procedures for customer-replaceable units (CRUs) in the SGI 2400 and 2800 rackmount systems. The CRUs are hardware components that can be safely removed by an end user without undue exposure to high electrical power potentials.

  • Page 100: Figure 6-1 Customer-Replaceable Units (Crus) For The Sgi 2400 Or 2800 Server

    Chapter 6: Removing and Replacing Customer-Replaceable Units System disk Optional drives System controller CD-ROM Blank drive panels Facade Cable bail Customer-Replaceable Units (CRUs) for the SGI 2400 or 2800 Server Figure 6-1...

  • Page 101: General Information

    This equipment uses electrical power internally that is hazardous if the equipment is improperly disassembled. Board removal and replacement should be performed only by SGI-certified personnel. Caution: Do not attempt to move CrayLink Interconnect cables. These cables are made of sensitive copper strands and insulation material that can be damaged if they are excessively bent, stretched, or stepped on.

  • Page 102: General Procedures

    General Procedures This section describes related activities that are common to most CRU installation and removal procedures for the SGI 2400 and 2800 rackmount chassis. Powering Off a Rackmount System You can either power off an individual module or power off the entire rack configuration using the multimodule System Controller (MMSC).

  • Page 103: Figure 6-2 Turning Off The Module Controller

    General Procedures Security key switch Standby (Off) Figure 6-2 Turning Off the Module Controller Caution: The “Standby” mode does not turn power completely off to the module. Voltage is still present in the system. 4. Power off the module. The switch is located in the rear of the chassis, near the AC power cord receptacle (see Figure 6-3).

  • Page 104: Figure 6-3 Powering Off A Rackmount Module

    Chapter 6: Removing and Replacing Customer-Replaceable Units Module power switch Powering Off a Rackmount Module Figure 6-3...

  • Page 105: Figure 6-4 Powering Off The Multimodule Controller

    General Procedures Powering Off a Single Rack Configuration Use these procedures to power off a single-rack system. 1. Power off the individual system modules, see “Powering Off an Individual Module System” on page 82. 2. Power off the MMSC display (see Chapter 7, “Using the System Controller” for additional information).
  • Page 106 Chapter 6: Removing and Replacing Customer-Replaceable Units Powering Off a Multi-Module Rack Configuration See Chapter 7, “Using the System Controller” then use these procedures to completely power down an entire multi-rack configuration. 1. Power down the individual system modules (see “Powering Off an Individual Module System”...

  • Page 107: Figure 6-5 Turning Off The Pdu

    General Procedures PDU power switch PDU off PDU on Figure 6-5 Turning Off the PDU...

  • Page 108: Figure 6-6 Turning Off A Multirack Configuration

    Chapter 6: Removing and Replacing Customer-Replaceable Units Turn off the rack with the multi-module display LAST!!!! Figure 6-6 Turning Off a Multirack Configuration...

  • Page 109: Opening The Drive Door

    General Procedures Opening the Drive Door Use these procedures to open the drive door on a rackmount system: 1. Swing open the drive door as shown in Figure 6-7. When closing the door, push it all the way in to engage the plastic tab on the bottom of the door. The door should normally be in the closed position to help keep out dust and Note: other possible contaminants from the drives and MSC.

  • Page 110: Opening The Cable Cover Door

    Chapter 6: Removing and Replacing Customer-Replaceable Units Opening the Cable Cover Door The cable cover door (see Figure 6-8) provides aesthetic shielding for the CrayLink Interconnect cabling on the rackmount chassis and between side-by-side rackmount systems. Cable cover door for Craylink Interconnect Figure 6-8 Opening the Cable Cover Door...

  • Page 111: Specific Procedures

    Specific Procedures Specific Procedures The following section provides instructions for replacing the customer-replaceable units (CRUs). To replace a CRU, use Figure 6-1 to identify the appropriate unit and its position in the chassis. Then proceed to the appropriate section and perform the steps. Removing a Drive Module Disk drive modules are aligned vertically at the front of the chassis.

  • Page 112: Figure 6-9 Opening The Disk Drive Unit Module

    Chapter 6: Removing and Replacing Customer-Replaceable Units Optional Disk Handle in Handle in closed position open position System Disk Handle in Handle in closed position open position Opening the Disk Drive Unit Module Figure 6-9 1. Ensure that the system is powered off and unplugged. 2.

  • Page 113: Figure 6-10 Removing The Drive

    Specific Procedures Handle in Handle in closed position open position Figure 6-10 Removing the Drive...

  • Page 114: Removing The Facade

    Chapter 6: Removing and Replacing Customer-Replaceable Units To insert a disk module, follow these steps: 1. Ensure that the system is powered off and unplugged. 2. If necessary, snap the handle to the open position so that it is centered, as shown in Figure 6-10.

  • Page 115: Figure 6-11 Removing The Facade From A System Module

    Specific Procedures 9/64 Allen head Conn Actu ecto 7-64 ation Conn Actu ecto 7-64 ation screw Removing the Facade from a System Module Figure 6-11...

  • Page 116: Removing The System Controller And Cd-Rom Module

    Chapter 6: Removing and Replacing Customer-Replaceable Units Removing the System Controller and CD-ROM Module The System Controller and CD-ROM drive are packaged together in one assembly. To replace either component, you must remove and insert an entire new assembly. Caution: Do not attempt to remove the MMSC and display. This procedure should only be performed by Silicon Graphics-certified personnel.

  • Page 117: Figure 6-12 Removing The System Controller And Cd-Rom

    Specific Procedures Removing the System Controller and CD-ROM Figure 6-12...

  • Page 118: Xio Board Slots

    Chapter 6: Removing and Replacing Customer-Replaceable Units XIO Board Slots Each system comes with a mimimum of 12 XIO board slots. Various types of optional interface boards are supported in the XIO slots. These may include • peripheral component interface (PCI) •...

  • Page 119: Using The System Controller

    Chapter 7 Using the System Controller This chapter describes how to use the two system controller types in a rackmount system. • multimodule System Controller (MMSC) and display • module System Controller (MSC) and display The MMSC in a rackmount system is an intelligent communcations device that can monitor one or more system “modules”...

  • Page 120: Mmsc Front Panel Display

    Chapter 7: Using the System Controller The MMSC’s front display and input panel interface is only necessary in the primary rack of a fabric-interconnected multiple-rack system. A MMSC must be installed in each rack in a fabric-interconnected multiple-rack system. Figure 7-1 shows a functional block diagram of the MMSC. Processor Power Control Infrastructure Power Control Interface...

  • Page 121: Figure 7-2 Mmsc And Front Panel

    MMSC Multimodule controller To other Multimodule controllers Multimodule controller display Figure 7-2 MMSC and Front Panel...

  • Page 122: Figure 7-3 Mmsc Display

    Chapter 7: Using the System Controller The front display and input panel mounts on a cross section piece above the lower front air intake baffle (see Figure 7-3). The front display panel’s color TFT (thin film transisitor) screen measures approximately 4 inches high and 5-1/2 inches wide (10.2 cm x 14 cm). The panel’s input device consists of six push button switches: •...

  • Page 123: Figure 7-4 Action Menu Selection For Mmsc Display

    MMSC Powering On a Rack Follow these instructions to power on an entire rack configuration through the MMSC display. 1. Select the “Focus” menu on the display using the direction keys, then press the Enter key. Make sure that the “Al” option is highlighted 2.

  • Page 124: Mmsc Assembly

    Chapter 7: Using the System Controller Resetting the Rack System Follow these instructions to reset an entire rack configuration through the MMSC display. 1. Select the “Focus” menu on the display using the direction keys, then press the Enter key. Make sure that the “All”...

  • Page 125: Figure 7-5 Mmsc Cabling

    MMSC Multimodule system controller (MMSC) UPPER BAY BASE I/O TTY1 Alternate console LOWER BAY IO 3 IO 4 IO 5 IO 6 IO 7 IO 8 IO 9 IO 1 IO 1 IO 1 Console Figure 7-5 MMSC Cabling...
  • Page 126 Chapter 7: Using the System Controller Multimodule Multimodule System System Controller Controller Top view Special "null," "jumper," or "patch" 10baseT cable (018-0625-001) Figure 7-6 MMSC to MMSC 10BaseT Ethernet Cabling (2 racks)
  • Page 127 MMSC Multimodule Multimodule Multimodule System System System Controller Controller Controller 10BaseT Hub Top view Standard 10BaseT cable (018-0700-001) MMSC to 10BaseT-Hub 1BaseT Ethernet Cabling (2 racks) Figure 7-7...
  • Page 128 Chapter 7: Using the System Controller The MMSC interfaces listed above are augmented by system console in-and-out RS-232 connectors and a modem connector. Note that when the MMSC is connected to the RS-232 interface on a system mounted in the rack, you may not use the eight-pin DIN connector on the front of a system module’s MSC.

  • Page 129: Msc Front Panel

    MSC Front Panel MSC Front Panel The MSC front panel is shown in Figure 7-9. Module Module switch reset switch Fan hi-speed AC OK LED indicator DC OK LED Ambient over- temperature 8-digit LED display Security key switch 8-pin mini DIN diagnostic port ti c...
  • Page 130 Chapter 7: Using the System Controller The MSC provides environmental monitoring for safe operation of the deskside system. The MSC connects to the system midplane via a transition or “bridge” board and provides easy user access to switches and displays at the front of the deskside system. In the lower right section on the back of the deskside system is a DB-9 alternate console diagnostic port serial connector that is a direct mirror of the 8-pin diagnostic connector on the front panel.
  • Page 131 MSC Front Panel System Controller serial port System Controller Serial Port (DB-9) Pin 1 Ground Pin 6 Not Used Pin 2 Data Terminal Ready (DTR) Pin 7 Request to Send (RTS) Pin 3 Transmit Data (TXD) Pin 8 Clear to Send (CTS) Pin 4 Request Data (RXD) Pin 9 Not Used Pin 5 Data Carrier Detect (DCD)

  • Page 132: Understanding The Msc Leds And Switches

    Chapter 7: Using the System Controller Understanding the MSC LEDs and Switches The System Controller has one keyswitch, two push buttons, and four LED indicators. The following paragraphs provide information on the use or significance of each control or indicator. selects Standby, On, or Diagnostic status for the system.

  • Page 133: Msc Features And Functions

    MSC Features and Functions MSC Features and Functions The MSC has the following basic features and functions: • Issues a reset signal at power-on. • A front panel-mounted keyswitch provides a soft power-off to standby condition. • A front panel-mounted push-button system reset switch. •...
  • Page 134 Chapter 7: Using the System Controller • Provides ability to request the system serial number and configuration information via the I2C Interface. • Eight-digit alphanumeric status display. This display is updated by the System Controller or the Node cards in the system via the I2C interface. •...

  • Page 135: Msc Status Messages

    MSC Status Messages MSC Status Messages The MSC front panel has an eight-character LED readout that supplies information about system status. Table 7-1 gives a list of MSC messages and an explanation of what the impacts may be. Table 7-1 System Controller Messages Message Meaning of Message...
  • Page 136 Chapter 7: Using the System Controller Table 7-1 (continued) System Controller Messages Message Meaning of Message FAN FAIL A system fan has failed. If it is fan 1, 2, or 3, the system shuts down. A service call should be placed as soon as possible. POK FAIL A power OK failure occurred on an unidentified board.

  • Page 137: System Maintenance And Troubleshooting

    System Maintenance and Troubleshooting This chapter contains hardware-specific information that can be helpful if you are having trouble with your SGI 2400 or 2800 rackmount server. Maintaining Your Hardware and Software This section gives you some basic guidelines to follow to keep your hardware and software in good working order.

  • Page 138: Software Dos And Don'ts

    Chapter 8: System Maintenance and Troubleshooting Software Dos and Don’ts When your system is up and running, follow these guidelines: • Do not turn off power to a system that is currently running software. • Do not use the root account unless you are performing administrative tasks. •...

  • Page 139: Physical Inspection Checklist

    Physical Inspection Checklist Physical Inspection Checklist Check every item on this list: • Make sure the terminal and main unit power switches are turned on. • If the system has power, check the System Controller display for any messages, then reset the system.

  • Page 140: Msc Shutdown

    Chapter 8: System Maintenance and Troubleshooting MSC Shutdown Under specific circumstances, the MSC may shut down the system. Usually this occurs when the operating environment becomes too warm because of fan failure, high ambient temperatures, or a combination of the two. The System Controller will automatically shut down the system and light the “Over Temperature Fault”...

  • Page 141: Recovering From A System Crash

    Recovering from a System Crash Recovering from a System Crash Your system might have crashed if it fails to boot or respond normally to input devices such as the keyboard. The most common form of system crash is terminal lockup—a situation where your system fails to accept any commands from the keyboard.

  • Page 143: System Specifications

    Appendix A System Specifications Table A-1 and Table A-2 provide technical specifications for the SGI server system. Table A-1 Physical and Environmental Specifications Parameter Specification Dimensions Installed: length 39” (99 cm) width 29” (74 cm) height 73” (185 cm) Shipping: length 81”...
  • Page 144 Appendix A: System Specifications Table A-2 Electrical and Cooling Specifications Parameter Specification Voltage: 187-264 Volts, 1-phase Watts maximum 5750 watts (from-the-wall): Power Factor: minimum 0.98 Inrush Current: maximum Frequency: 47-63 Hertz Heat Output: maximum 19,550 Btu/hr (1.63 ton AC load)

  • Page 145: Index

    Index amber warning LED fan failure detection ambient incoming air field replaceable unit identifying apropos command xviii field replaceable units commands apropos xviii General procedures grelnotes xviii grelnotes command xviii makewhatis xviii xvii relnotes xviii critical fan hardware maintenance of 117, 118 Help xvii...
  • Page 146 NMI switch non-critical fan Weight non-maskable interrupt World Wide Web documentation available via xviii SGI URL (address) xviii online documentation xvii Powering down the system Power source, disconnecting rear-mounted System Controller connector release notes, viewing xviii...

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