Contributions by Charles Alexander, Dick Brownell, David Diederichs, Steve Ewing, Mike Grayson, Patrick Heintz, Nancy Heller, Matt Hoy,
Brad Juskiewicz,Jusson Koo,Art Ordonio, PaulPedersen, GillesPerrenoud, Mike Petersen, Hao Pham, Keith Rich, German Rico, Bob Sanders,
Mark Schwenden, Bruce Shifrin, Gary Spilde, Brian Stickney, Benjie Sun, and Michael Wright.
Cover Design by Sarah Bolles, Sarah Bolles Design, and Dany Galgani, SGI Technical Publications
The electronic (software) version of this document was developed at private expense; if acquired under an agreement with the USA government
or any contractor thereto, it is acquired as “commercial computer software” subject to the provisions of its applicable license agreement, as
specified in (a) 48 CFR 12.212 of the FAR; or, if acquired for Department of Defense units, (b) 48 CFR 227-7202 of the DoD FAR Supplement; or
sections succeeding thereto. Contractor/manufacturer is Silicon Graphics, Inc., 1600 Amphitheatre Pkwy 2E, Mountain View, CA 94043-1351.
TRADEMARKS AND ATTRIBUTIONS
Silicon Graphics, SGI, the SGI logo, InfiniteReality, IRIX, Octane, Onyx2, and Origin are registered trademarks, and NUMAflex, NUMAlink,
SGIconsole, Supportfolio, VPro, and XIO are trademarks of Silicon Graphics, Inc., in the United States and/or other countries worldwide.
MIPS is a registered trademark of MIPS Technologies, Inc., used under license by Silicon Graphics, Inc.
Linux is a registered trademark of Linus Torvalds.
Figure A-2Non-Proprietary Connectors on Rear Panel of MPX Module . .224
Figure A-3Non-Proprietary Connectors on Rear Panel of L2 Controller . .225
Figure A-4Non-Proprietary Connector on Rear Panel of NUMAlink Module226
Figure A-5Non-proprietary Connectors on Rear Panel of TP900 Storage
Module . . . . . . . . . . . . . . . . .226
Figure A-6USB Hub Type A Connectors . . . . . . . . . . .227
Table A-23Conductor Assignments for Stereo Jack Connector . . . . .232
Table A-24Pin Assignments for USB Type A Connector . . . . . .233
Table A-25Pin Assignments for USB Type B Connector. . . . . . .234
Table A-26Pin Assignments for the PS/2 Connectors . . . . . . .235
xviii007-4566-001
About This Guide
This guide provides an overview of the SGI Origin 350 server system components. It also
describes how to set up and operate the Origin 350 server system.
The Origin 350 server system is either a standalone base compute module, or a base
compute module connected and rackmounted with the following optional modules that
expand the function of the system:
•A system expansion compute module, which is interconnected to the base compute
module via a NUMAlink 3 cable, adds processors, memory, and PCI/PCI-X card
slots, but may or may not have an IO9 card. (The new single system created by
connecting the two modules together can include 4, 6, or 8 processors with local
memory of up to 16 GB.)
•A 2U memory and PCI expansion (MPX) module provides extra memory and four
PCI and PCI-X card slots to your system. See Chapter 4, “Memory and PCI
Expansion (MPX) Module,” for information about this module.
•The 4U PCI expansion module adds PCI slots, but no processors, no memory, and
no IO9 card. There are two versions of the PCI expansion module: one module has
12 PCI slots that support 3.3-V or universal PCI cards, and the other module has 6
PCI slots that support 5-V or universal PCI cards and 6 slots that support 3.3-V or
universal PCI cards. For information about this module, see PCI Expansion ModuleUser’s Guide (5.0-V Support and/or 3.3-V Support) (007-4499-00x).
•The SGI TP900 storage module provides additional storage to the system. For
information about this module, see SGI Total Performance 900 Storage System User’sGuide (007-4428-00x). The Origin 350 server supports other storage modules. See
“Storage Expansion” on page 89 for information.
•The NUMAlink module connects two or more compute modules in your server
system. See Chapter 5, “NUMAlink Module,” for information about this module.
This guide is written for owners, system administrators, and users of the Origin 350
server system. It is written with the assumption that the reader has a general knowledge
of computers and computer operations.
007-4566-001xix
About This Guide
Important Information
Your SGI system support engineer (SSE) should perform the addition or replacement of
parts, cabling, and service of your Origin 350 server system, with the exception of the
following tasks that you may perform yourself:
•Installing your system in a rack.
•Cabling the system modules to each other.
•Connecting a system console to your server system.
•Using your system console to enter commands and perform system functions such
as powering on and powering off.
•Using the On/Off, reset, and non-maskable interrupt (NMI) switches on the front
panel of your server system.
•Installing and removing PCI and PCI-X cards.
Caution: Exception: Because the installation and removal of an IO9 PCI card, which
installs in the lowermost slot, is more complicated and can cause damage to your
system if not performed properly, it can only be installed and removed by a trained
SGI system support engineer.
•Installing and removing disk drives.
•Installing and removing power supplies.
•Installing and removing DIMMs.
•Installing and removing the L1 controller display.
Chapter Descriptions
The following topics are covered in this guide:
•Chapter 1, “Installation and Operation,” provides instructions for rack mounting,
cabling, and operating the Origin 350 server system.
•Chapter 2, “System Overview,” provides a general overview of the Origin 350
server system, including a list of the system features. This chapter also includes a
quick description of the various components and modules that can be part of an
Origin 350 server system.
xx007-4566-001
About This Guide
•Chapter 3, “Compute Module,” describes the Origin 350 base and system expansion
compute modules and provides details about their internal and external
components.
•Chapter 4, “Memory and PCI Expansion (MPX) Module,” describes the MPX
module and provides details about its internal and external components.
•Chapter 5, “NUMAlink Module,” describes the NUMAlink module and provides
details about its internal and external components.
•Chapter 6, “Installing and Removing Customer-replaceable Units,” describes how
to install and remove the following customer-replaceable units (CRUs): PCI and
PCI-X cards, disk drives, power supplies, memory (DIMMs), and the L1 system
controller display.
•Chapter 7, “Troubleshooting,” describes how to troubleshoot your system by using
the L1 controller and L1 controller messages, and by reading your system LEDs.
•Appendix A, “Technical Specifications,” contains environmental and physical
specifications for the Origin 350 server system, as well as pin assignments for
non-proprietary connectors for the various modules that can be part of an Origin
350 server system.
•Appendix B, “Regulatory Specifications and Safety Information,” contains
regulatory specifications and safety information related to the Origin 350 server
system.
An index completes this guide.
007-4566-001xxi
About This Guide
Related Publications
This section lists various information sources and explains how to access them. The
following SGI publications relate to the Origin 350 server system:
•SGI Origin 350 Server System User’s Guide (this manual) (hard copy shipped with the
•IRIX Admin Software Installation and Licensing Guide (hard copy shipped with system
system and available online) (007-4566-00x). Use this guide to become acquainted
with your server and to learn how to operate and monitor the server system. In
addition, this guide contains information on installing the server system in a
19-inch rack, cabling the system, and replacing PCI and PCI-X cards, disk drives,
power supplies, DIMMs, and an L1 display.
Warning: To ensure your safety and protect your system, do not add or replace
any components that this guide does not designate as customer replaceable.
Contact your SGI system support engineer (SSE) to install any hardware
components that are not designated as customer replaceable in this guide.
and available online) (007-1364-xxx). This is the complete reference guide on using
the installation program, inst, to install software. For information on using the
Software Manager to install software, see the online Personal System Administration
with system and available online). This guide describes the L1 and L2 controller
functions, commands, and error messages that you may need to operate and
maintain your system.
•PCI Expansion Module User’s Guide (5.0-V Support and/or 3.3-V Support)
(007-4499-00x). This guide describes the 4U PCI expansion module, which is an
optional module that adds 12 PCI slots (but no processors, or memory, and no IO9
card) to your system.
•SGI Total Performance 900 Storage System User’s Guide (007-4428-00x). This guide
describes the SGI TP900 storage module, which provides additional storage to the
Origin 350 server system.
•SGIconsole Hardware Connectivity Guide (007-4340-00x) (optional). This guide
describes how to connect an SGIconsole to your Origin 350 server system and other
systems supported by the SGIconsole. You use the SGIconsole to manage and
monitor your graphics systems.
xxii007-4566-001
About This Guide
You can obtain SGI documentation, release notes, or man pages in the following ways:
•See the SGI Technical Publications Library at http://docs.sgi.com. Various formats
are available. This library contains the most recent and most comprehensive set of
online books, release notes, man pages, and other information.
•If it is installed on your SGI system, you can use InfoSearch, an online tool that
provides a more limited set of online books, release notes, and man pages. With an
IRIX system, select Help from the Toolchest, and then select InfoSearch. Or you can
type infosearch on a command line.
•You can also view release notes by typing either grelnotes or relnotes on a
command line.
•You can also view man pages by typing man <title> on a command line. The
following paragraphs provide more information about man pages.
SGI systems include a set of IRIX man pages, formatted in the standard UNIX “man
page” style. Important system configuration files and commands are documented on
man pages. These are found online on the internal system disk (or CD-ROM) and are
displayed using the man command. For example, to display the man page for the
Add_disk command, type the following on a command line:
man Add_disk
References in the documentation to these pages include the name of the command and
the section number in which the command is found. For example, “Add_disk(1)” refers
to the Add_disk command and indicates that it is found in section 1 of the IRIX
reference.
For additional information about displaying man pages using the man command, see
man(1).
In addition, the apropos command locates man pages based on keywords. For example,
to display a list of man pages that describe disks, type the following on a command line:
apropos disk
For information about setting up and using apropos, see apropos(1) and
makewhatis(1M).
007-4566-001xxiii
About This Guide
Conventions
The following conventions are used throughout this document:
ConventionMeaning
CommandThis fixed-space font denotes literal items such as commands, files,
routines, path names, signals, messages, andprogramming language
structures.
variableThe italic typeface denotes variable entries and words or concepts
being defined. Italic typeface is also used for book titles.
user inputThis fixed-space font denotes literal items that the user enters in
interactive sessions. Output is shown in nonbold, fixed-space font.
[ ]Brackets enclose optional portions of a command or directive line.
...Ellipses indicate that a preceding element can be repeated.
man page(x)Man page section identifiers appear in parentheses after man page
names.
GUI elementThis font denotes the names of graphical user interface (GUI)
elements such as windows, screens, dialog boxes, menus, toolbars,
icons, buttons, boxes, fields, and lists.
Product Support
SGI provides a comprehensive product support and maintenance program for its
products, as follows:
•If you are in North America, contact the Technical Assistance Center at
1 (800) 800 4SGI or contact your authorized service provider.
•If you are outside North America, contact the SGI subsidiary or authorized
distributor in your country.
xxiv007-4566-001
Reader Comments
About This Guide
If you have comments about the technical accuracy, content, or organization of this
document, contact SGI. Be sure to include the title and document number of the manual
with your comments. (Online, the document number is located in the front matter of the
manual. In printed manuals, the document number is located at the bottom of each
page.)
You can contact SGI in any of the following ways:
•Send e-mail to the following address:
techpubs@sgi.com
•Use the Feedback option on the Technical Publications Library website:
http://docs.sgi.com
•Contact your customer service representative and ask that an incident be filed in the
SGI incident tracking system.
•Send mail to the following address:
Technical Publications
SGI
1600 Amphitheatre Pkwy., M/S 535
Mountain View, California 94043-1351
•Send a fax to the attention of “Technical Publications” at +1 650 932 0801.
SGI values your comments and will respond to them promptly.
007-4566-001xxv
Chapter 1
1.Installation and Operation
This chapter describes how to install and operate your SGI Origin 350 server system.
Specifically, the following topics are covered:
•“System Installation Overview (the Road Map)” on page 2
•“Safety Precautions” on page 3
•“Installing a Rack” on page 5
•“Unpacking and Inspecting Server System Modules” on page 23
•“Setting the Server System on a Table Top” on page 23
•“Installing the Server System in a Rack” on page 25
Note: The rackmounting kit enables the module to be mounted in an SGI rack and
in an industry-standard 19-inch wide rack.
•“Cabling the System Modules to Each Other” on page 45
•“Cabling the Server System to a Power Source” on page 48
•“Connecting the System Console” on page 51
•“Operating the Server System” on page 53
007-4566-0011
1: Installation and Operation
System Installation Overview (the Road Map)
In this chapter, different installation instructions are provided for different types of
system installations. Follow the instructions for your type of installation, as follows:
Note: It is assumed that you will be connecting a system console to your server system
in each installation case.
•If you have ordered a server system that is already rackmounted, which means that
the modules that compose your system are also already cabled together, follow the
instructions in these sections:
–“Safety Precautions” on page 3
–“Installing a Rack” on page 5
–“Cabling the Server System to a Power Source” on page 48
–“Connecting the System Console” on page 51
•If you have ordered system modules and an empty rack or racks with the intention
of rackmounting and cabling your own server system, follow the instructions in
these sections:
–“Safety Precautions” on page 3
–“Installing a Rack” on page 5
–“Unpacking and Inspecting Server System Modules” on page 23
–“Installing the Server System in a Rack” on page 25
–“Cabling the System Modules to Each Other” on page 45
–“Cabling the Server System to a Power Source” on page 48
–“Connecting the System Console” on page 51
•If you have ordered either a single- or dual-module server system that you intend to
install on a table top, follow the instructions in these sections:
–“Safety Precautions” on page 3
–“Unpacking and Inspecting Server System Modules” on page 23
–“Cabling the System Modules to Each Other” on page 45
–“Cabling the Server System to a Power Source” on page 48
2007-4566-001
•If you have your own rack, and have ordered server system modules with the
Safety Precautions
Before you install an Origin 350 server system, you should familiarize yourself with the
safety precautions discussed in the following subsections:
Safety Precautions
–“Connecting the System Console” on page 51
intention of rackmounting and cabling your own server system, follow the
instructions in these sections:
–“Safety Precautions” on page 3
–“Unpacking and Inspecting Server System Modules” on page 23
–“Installing the Server System in a Rack” on page 25
–“Cabling the System Modules to Each Other” on page 45
–“Cabling the Server System to a Power Source” on page 48
–“Connecting the System Console” on page 51
•“Hazard Statements” on page 3
•“ESD Precautions” on page 4
•“Safety Measures” on page 4
Hazard Statements
During the installation of the computer system, be alert for hazard advisory statements
with icons, which signify the following:
•Caution Indicates a potentially hazardous situation that, if not avoided, can result
in minor or moderate injury. A caution statement also alerts you to unsafe practices
that can result in equipment damage and/or data corruption. A caution message is
accompanied by an icon as shown in the following example:
Caution:
!
007-4566-0013
1: Installation and Operation
ESD Precautions
•Warning indicates a potentially hazardous situation that, if not avoided, could
result in death or serious injury. A warning message is accompanied by icon as
shown in the following example:
Warning:
•Danger indicates an imminently hazardous situation that, if not avoided, will result
in death or serious injury. A danger message is accompanied by the same icon as a
warning.
Observe electrostatic discharge (ESD) precautions during the entire installation process
to eliminate possible ESD damage to the equipment. Wear an SGI-approved wrist strap
when you handle an ESD-sensitive device. Connect the wrist strap cord directly to earth
ground.
Caution: Observe all ESD precautions. Failure to do so can result in damage to the
!
equipment.
Safety Measures
Observe the following safety measures when you install the system:
•Use caution when you remove the system from the shipping crate. Failure to handle
the system carefully can result in personal injury or property damage.
Warning: Ensure that the shipping crate is positioned close to its destination
before you unpack the crate.
4007-4566-001
Installing a Rack
Warning: Employ a minimum of two people to lift the system module or
modules off the shipping pallet, to move the module(s) from one location to
another, and to install the module(s) in a rack. Otherwise, someone could be
seriously injured.
•Do not move the system while it is connected to power.
Danger: Keep fingers and conductive tools away from high-voltage areas. Failure to
follow these precautions will result in serious injury or death. The high-voltage areas
of the system are indicated with high-voltage warning labels.
•Ensure that a qualified electrician has properly installed the power receptacles.
•Set all circuit breakers to the OFF (O) position before you plug in the system power
cord.
Warning: Use the following guidelines to prevent the rack from toppling over.
Otherwise, people could be seriously injured and/or equipment could be damaged.
•Follow these guidelines to prevent the rack from toppling over:
•Make sure that only one module is extended out of the rack at one time.
•Install all equipment in the lowest available position in the rack.
•Ensure that the tip tray is bolted to the front of the rack.
Installing a Rack
This section describes how to install a rack at your site location, as follows:
•“Preinstallation Activities” on page 6
•“Unloading and Moving System Equipment” on page 10
•“Removing a Short Rack from the Shipping Crate” on page 13
•“Removing a Tall Rack from the Shipping Crate” on page 16
•“Positioning and Leveling a Single-rack System” on page 19
007-4566-0015
1: Installation and Operation
•“Positioning and Leveling a Multiple-rack (Clustered) System” on page 20
Although these instructions are based on the assumption that you have ordered an
empty rack or racks to rackmount your own modules, you can also use these instructions
to install a rack that already has your server system modules rackmounted and cabled
together. If this is the case, after you have completed installing your rack, proceed to
“Cabling the Server System to a Power Source” on page 48 to continue your installation.
If your system will not be rackmounted, skip thissection and proceed to “Unpacking and
Inspecting Server System Modules” on page 23 to begin your installation.
Preinstallation Activities
Perform the following preinstallation activities days or weeks before you receive your
system: perform site verifications, gather appropriate tools to complete the installation,
and ensure that the correct power receptacle is installed and properly wired. These
activities are explained in the following subsections:
•“Site Plan Verification” on page 6
Site Plan Verification
•“Tools Required” on page 7
•“Power Receptacle Verification” on page 7
Ensure that all site requirements are met before your system arrives. If you have
questions about the site requirements or you would like to order full-size floor templates
for your site, contact a site planning representative by e-mail (site@sgi.com) or by
telephone (+1 715 726 2820).
6007-4566-001
Tools Required
Table 1-1 lists the tools that you need to complete the installation.
Table 1-1Installation Tools
ToolPart Number Purpose
13-mm wrench7260744Adjust the leveling pads.
13-mm socket (3/8-in. drive)7260726Remove bracket bolts from tall rack shipping
19-mm socket (3/8-in. drive)9470618Remove bolts from short rack shipping crate.
Extension, 6-in. (3/8-in. drive)7260655Used with ratchet and sockets.
Ratchet, reversible (3/8-in. drive)7260755Used with extension and sockets.
Level, 9-in.9470556Level the rack.
Power Receptacle Verification
Installing a Rack
crate.
Ensure that a qualified technician installs the correct power receptacles. The Origin 350
server system uses one or two single-phase power receptacles. For North American sites,
the single-phase receptacle is a 30-amp, 200- to 240-volt receptacle that has two phase
sockets and one ground socket. For international sites, the single-phase receptacle is a
32-amp, 200-volt receptacle that has one phase socket, one neutral socket, and one
ground socket.
For North American sites, follow these steps to ensure that a single-phase power
receptacle is properly wired:
1.Set the voltmeter to a high AC voltage range.
2.Check the voltage between socket X and socket Y (see Figure 1-1). The meter should
read between 200 and 240 VAC.
3.Check the voltage between socket X and the ground socket. The meter should read
approximately 120 VAC.
4.Check the voltage between socket Y and the ground socket. The meter should read
approximately 120 VAC.
5.Check the voltage between the ground socket and an earth-ground location. The
meter should read 0 VAC.
007-4566-0017
1: Installation and Operation
!
6.Change the voltmeter to a low-resistance setting.
7.Measure between the ground socket and an appropriate earth-ground location and
ensure that resistance is less than 1 ohm.
8.Repeat steps 1 through 7 for any additional single-phase power receptacles.
Caution: If a voltage reading is incorrect, or if the resistance measured in step 7 is more
than 1 ohm, contact a site-approved electrician. Do not proceed with the installation.
Ground pole
Pole Y
Power cord
connector
Pole X
Ground socket
Figure 1-130-amp Single-phase Power Receptacle for North American Sites
Socket X
Socket Y
Receptacle
For international sites, follow these steps to ensure that a single-phase power receptacle
is properly wired:
1.Set the voltmeter to a high AC voltage range.
2.Check the voltage between socket 1 and socket 2 (see Figure 1-2). The meter should
read between 200 and 240 VAC.
8007-4566-001
Installing a Rack
3.Check the voltage between socket 1 (line) and the ground socket. The meter should
read between 200 and 240 VAC.
4.Check the voltage between socket 2 (neutral) and the ground socket. The meter
should read approximately 0 VAC.
5.Check the voltage between the ground socket and an earth-ground location. The
meter should read 0 VAC.
6.Change the voltmeter to a low-resistance setting.
7.Measure between the ground socket and an appropriate earth-ground location and
ensure that resistance is less than 1 ohm.
8.Repeat steps 1 through 7 for any additional single-phase power receptacles.
Caution: If a voltage reading is incorrect, or if the resistance measured in step 7 is more
than 1 ohm, contact a site-approved electrician. Do not proceed with the installation.
!
Pin 1 (line)
Pin 2 (neutral)
Power cord
connector
Ground socket
Socket 2
Ground pin
Socket 1
(line)
Figure 1-232-amp Single-phase Power Plug for International Sites
(neutral)
Receptacle
007-4566-0019
1: Installation and Operation
Unloading and Moving System Equipment
The Origin 350 server system arrives at the site in cardboard shipping crates.
For a short rack system, the documentation carton and the accessories carton are packed
with the system. The documentation carton contains the system manuals as well as
warranty and licensing information. The accessories carton contains the I/O, peripheral,
and system cables, and any additional connectors or tools that are required for a specific
configuration. The PC, workstation, or terminal is shipped in a separate carton.
For a tall rack system, the system documentation; accessories; and PC, workstation, or
terminal arrive in separate cartons.
This section describes how to unload and transport the system to its designated location,
as follows:
•“Unloading the Equipment from the Truck” on page 10
•“Inspecting the Shipping Crate” on page 12
•“Transporting the Shipping Crate” on page 13
Unloading the Equipment from the Truck
If your loading dock is the same height as the transportation vehicle, use a pallet jack to
unload the system from the transportation vehicle. The pallet jack should have 48-in.
tines or forks. Follow any instructions that are printed on the packing crates.
If the loading dock is not the same height as the vehicle, you must provide a forklift or
another approved method to unload the system. You can use a platform or ramp to
obtain the desired level as long as the ramp incline does not exceed a ratio of one unit
vertical to six units horizontal. For more information on site requirements, contact site
planning by e-mail (site@sgi.com) or by telephone (+1 715 726 2820).
Warning: Use two or more people to prevent computer equipment from rolling off
the transportation vehicle. Failure to do so could result in serious damage to the
computer equipment.
10007-4566-001
Installing a Rack
If your site does not have a loading dock, arrange for a forklift to unload the system from
the transportation vehicle. Ensure that two or three people are available to help unload
the equipment. Move all crates slowly and carefully.
Figure 1-3 shows the lift openings and dimensions of a tall rack shipping crate. This
figure also shows where to position the pallet jack.
Side viewEnd view
81.5
(2070.1 mm)
50.5
(1524 mm)
51.25
(1301.75 mm)
40
(1016 mm)
Pallet jack position
Figure 1-3Dimensions of Tall Rack Shipping Crate
007-4566-00111
1: Installation and Operation
Figure 1-4 shows the lift openings and dimensions of a short rack shipping crate. This
figure also shows where to position the pallet jack.
(1238 mm)
Pallet jack position
Figure 1-4Dimensions of Short Rack Shipping Crate
Inspecting the Shipping Crate
After the system is unloaded from the truck, follow these steps before you unpack it:
1.Ensure that the crates and cartons arrive unopened.
2.Inspect the shipping crate for signs of external damage such as dents, holes, crushed
Side view
48.75
42.75
(1068 mm)
corners, and water marks.
End view
29.25
(743 mm)
3.Ensure that the tilt watch has not been tripped.
4.If the crate is damaged, file a damage claim with the carrier immediately. In
addition, notify your local Customer Support Center (CSC) for any missing,
incorrect, or damaged items. For CSC contact information, see
http://www.sgi.com/support/supportcenters.html.
12007-4566-001
Transporting the Shipping Crate
Use a pallet jack with forks that are 48 in. (122 cm) long or longer to transport the
shipping crate to the designated location. See Figure 1-3 and Figure 1-4 for the crate
dimensions and location to position the pallet jack. For system weight and dimensions,
contact site planning by e-mail (site@sgi.com) or by telephone (+1 715 726 2820).
If the crate does not fit through all access doors, you may need to partially disassemble
the crate.
Caution: If the system shipping or storage environment is significantly colder than the
!
environment in which it will be installed [40 ºF (22 ºC) or greater disparity], leave the rack
in its shipping crate for at least 24 hours at room temperature before you start the
installation. This acclimation prevents damage to the equipment that could result from
thermal shock and condensation.
Removing a Short Rack from the Shipping Crate
Installing a Rack
Warning: Be careful when you unpack and move the short rack system. Ensure that
the rack remains on a level surface and that the rack weight remains evenly
distributed across the four casters. If you must lift the casters over an obstacle, such as
a door threshold, use proper lifting techniques and employ a minimum of two people.
Caution: Do not subject the rack to any unnecessary shocks or vibration while you
!
007-4566-00113
unpack and install the system.
See Figure 1-5 as you follow these steps; the numbered illustrations correspond to the
numbered steps.
1.Ensure that the temperature of the rack is acclimated to the environment in which
you are installing it.
2.Remove the crate cover.
3.Lift the ramp out of the crate and set it aside.
4.Remove the documentation carton, accessories carton, and cardboard packing
material.
5.Lift the sidewalls of the crate up and over the system.
1: Installation and Operation
6.Remove the four bolts that secure the rack to the crate. You must reach underneath
the crate and feel for the bolts.
7.Align the holes in the edge of the ramp with the pegs in the base of the crate. Ensure
that the ramp is secure.
8.Remove the gate pins from the left and right ends of the gate. Then remove the gate.
9.Pull the rack down the ramp.
Warning: The maximum weight of the short rack is 488 lb (221 kg). Use caution
when you roll the rack down the ramp.
14007-4566-001
Installing a Rack
Figure 1-5Removing a Short Rack from the Shipping Crate
007-4566-00115
Peg
1: Installation and Operation
Removing a Tall Rack from the Shipping Crate
Warning: In its maximum configuration, a tall rack system weighs approximately
1,110 lb (499 kg). Use caution when you unpack and move this rack. Ensure that the
rack remains on a level surface and that the rack weight remains evenly distributed
across the four casters.
To unpack a tall rack, you will need the following tools:
•Extension, 6-inch, 3/8-in. drive
•13-mm standard 3/8-in. drive socket
•Ratchet, reversible, 3/8-in. drive
See Figure 1-6 as you follow these steps; the numbered illustrations correspond to the
numbered steps.
1.Ensure that the temperature of the rack is acclimated to the environment in which
you are installing it and that the system crate is in a stable, upright position.
2.Remove the bands that secure the crate.
Note: Brace the wooden ramp as you remove the horizontal bandthat surrounds the
crate and the wooden ramp. The ramp moves freely after you remove this band.
3.Place the ramp so that the three holes in the edge of the ramp align with the pegs in
the base of the pallet deck.
4.Remove the cardboard cover, the two cardboard sidewalls, and the foam cushion.
5.Remove the bolts that secure the rack to the pallet deck, as follows:
a.Remove the top four bolts from the rear mounting bracket; do not remove the
bottom bolts.
b.Remove the four bolts that secure the front mounting bracket and tip tray to the
bottom of the pallet deck. Set the tip tray aside.
c.Remove the top four bolts from the front mounting bracket. Set the mounting
bracket aside.
16007-4566-001
Installing a Rack
6.Use two people to roll the rack out of the crate and down the ramp.
Warning: Use extreme caution when you roll the tall rack down the ramp. Personal
injury and system damage could result if the rack becomes unbalanced or gains too
much momentum when it rolls down the ramp.
7.Bolt the tip tray to the front of the rack before you move the rack to its designated
location. This tray prevents the rack from tipping while you move the rack.
007-4566-00117
1: Installation and Operation
5a
2
3
4
Cardboard
cover
Foam
cushion
Cardboard
sidewalls
Pegs
Ramp
5b
5c
Tip tray
Bolt
Rear mounting
bracket
Front mounting
bracket
6
Bolt
7
Front mounting bracket
Tip tray
Figure 1-6Removing a Tall Rack from the Shipping Crate
18007-4566-001
Positioning and Leveling a Single-rack System
Caution: To avoid ESDdamage to the electronic components, be sure to positionthe rack
!
before you remove the ESD bag that covers the rack assembly.
To position and level a single-rack system, follow these steps:
1.Grasp the rear of the rack and roll the rack to its designated location.
2.Remove the ESD bag.
3.If you are installing a tall rack, adjust the leveling bolts, as shown in Figure 1-7, until
the rack is level.
Installing a Rack
Figure 1-7Leveling Bolts
4.Ensure that the circuit breaker on the power distribution unit is in the OFF (O)
position. Then connect the power cord to a grounded power outlet. Plugging in the
power cord grounds the rack.
007-4566-00119
1: Installation and Operation
5.Secure the rack with seismic tie-downs if you are installing the system in an
earthquake zone.
Note: Tall and short racks have four threaded holes that are located at the bottom of
the rack (see Figure 1-8). Use these holes to secure the seismic tie-downs. SGI does
not supply the seismic tie-downs.
Top view of short rack
Top view of tall rack
Seismic tie-down attachment points
Casters
Leveling pads
Figure 1-8Seismic Tie-down Attachment Points
Positioning and Leveling a Multiple-rack (Clustered) System
Caution: To avoid ESD damage to the electronic components, be sure to position the
!
20007-4566-001
racks before you remove the ESD bags that cover the rack assemblies.
To position and level a multiple-rack (clustered) system, follow these steps:
1.Grasp the rear of each rack and roll the rack to its designated location.
2.Remove the ESD bags.
Installing a Rack
3.Adjust the leveling bolts of rack 001, as shown in Figure 1-9, until the rack is level.
Figure 1-9Leveling Bolts
4.Using the leveling bolts of rack 002, adjust rack 002 so that the joining holes of rack
002 align with the joining holes of rack 001. See Figure 1-10.
5.Using the provided straps, screws, and washers, bolt the racks together in the four
designated locations shown in Figure 1-10.
6.If your system has additional racks, repeat steps 4 and 5 until all of the racks are
bolted together.
7.Ensure that the circuit breakers on the power distribution units are in the OFF (O)
position. Then connect the power cords to grounded power outlets. Plugging in the
power cords grounds the racks.
8.Secure the racks with seismic tie-downs if you are installing the system in an
earthquake zone.
Note: Tall racks have four threaded holes that are located at the bottom of the rack (see
Figure 1-8 on page 20). Use these holes to secure the seismic tie-downs. SGI does not
supply the seismic tie-downs.
007-4566-00121
1: Installation and Operation
Joining holes of
location 4
Location 3
Location 2
Location 1
Strap
Washer
Screw
Figure 1-10Joining Locations
22007-4566-001
Unpacking and Inspecting Server System Modules
Unpacking and Inspecting Server System Modules
This section is written for the person who wants to install his or her own individual
server system modules either on a rack or on a tabletop. It describes how to unpack and
inspect individual server system modules.
Before unpacking your modules, inspect the packaging container for evidence of
mishandling during transit. If the packaging container is damaged, photograph it for
reference. After you remove the contents, keep the damaged container and the packing
materials.
Remove the module or modules from the packaging container and ensure that all
accessories are included. Inspect the module(s) and accessories for damage. If the
contents appear damaged, file a damage claim with the carrier immediately. In addition,
notify your local Customer Support Center (CSC) for any missing, incorrect, or damaged
items. For CSC contact information, see
http://www.sgi.com/support/supportcenters.html.
Setting the Server System on a Table Top
If your server system is a single module (the base compute module) system or a
dual-module (a base compute module cabled to an MPX module, for example) system,
and you choose to operate it on a table top, you need to install five self-adhesive feet that
are supplied with the module(s). To install the feet, follow these steps:
1.Place the module upside down on a flat, stable surface.
2.Peel off the protective film from the feet and place them on the five circular marks,
as shown in Figure 1-11.
3.If you have a dual-module system, repeat steps 1 and 2 to put feet on the second
module. (If you have a dual-module system, it is recommended that you place the
base compute module on the bottom, and that you place the other module on top.)
Note: If you mount the system in a rack at a later date, you will need to remove the feet.
007-4566-00123
1: Installation and Operation
Figure 1-11Location of Table-mounting Feet
24007-4566-001
Installing the Server System in a Rack
This section describes how to install the modules that compose an Origin 350 server
system on a rack with either a slide rail assembly or with a shelf rail assembly (also
known as a fixed rail assembly). It also describes how to remove these modules from
these racks.
The base computemodule, thesystem expansion compute module, and the MPX module
are rackmounted with slide rails. The NUMAlink module, the PCI expansion module,
and the SGI TP900 storage system are rackmounted with shelf rails.
This rackmounting information is found in the following sections:
•“Rackmounting Modules with Slide Rails” on page 25
•“Removing a Module on Slide Rails from a Rack” on page 39
•“Rackmounting Modules with Shelf Rails” on page 42
•“Removing a Module on Shelf Rails from a Rack” on page 44
Installing the Server System in a Rack
Rackmounting Modules with Slide Rails
This section describes how to rackmount modules with slide rail assemblies. You can use
the instructions to rackmount base compute modules, system expansion compute
modules, and MPX modules. This section includes the following topics:
•“Determining Space Requirements” on page 26
•“Checking the Slide Rail Hardware” on page 26
•“Preparing the Slide Rail Assemblies” on page 27
•“Preparing the Module” on page 30
•“Determining Where to Attach the Slide Rail in the Rack” on page 31
•“Attaching the Slide Rail to the Rack” on page 32
•“Installing Clip Nuts in Rack Rails” on page 35
•“Installing the Module in the Rack” on page 36
•“Adjusting the Position of the Rackmounted Module” on page 38
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1: Installation and Operation
Determining Space Requirements
Table 1-2 specifies the space requirements when rackmounting either a base compute
module, a system expansion compute module, or an MPX module in a 19-inch rack.
Table 1-2Module Space Requirements
Height3.44 inches (8.74 cm)
Width17.06 inches (43.33 cm)
Depth27 inches (68.58 cm) (with bezel)
Weight37.80 lb (17.18 kg) minimum
Required front clearance for module8.25 in. (20.96 cm)
Required rear clearance for module10 in. (25.40 cm)
Required side clearance for module6 in. (15.24 cm) (right side)
configuration; 44.50 lb (20.23 kg)
maximum configuration
a
No clearance requirement for left side.
Required front clearance for rack36 in. (91 cm)
Required rear clearance for rack36 in. (91 cm)
a. Weight will vary depending on whether the system has one or two power supplies, on the amount
of DIMMs installed, and on whether you have one or two disk drives in your system.
Checking the Slide Rail Hardware
Table 1-3 lists the hardware that you will use to mount the module in a 19-inch rack.
Table 1-3Rackmounting Hardware
Hardware TypeQty Usage
Slide rail assembly (includes
chassis rail)
2-in. rear mounting bracket2Mounts the slide rails to the rear rack rails.
10-24 x 1/4-in. Phillips screw10Secures the chassis rails to the module.
26007-4566-001
2Allows the module to slide in and out of rack.
(The left and right slides are identical.)
(The left and right brackets are identical.)
Table 1-3Rackmounting Hardware (continued)
Hardware TypeQty Usage
Installing the Server System in a Rack
10-32 x 1/2-in. Phillips screw
Shoulder washer
Barnut
10-32 x 1/2-in. Phillips screw
Barnut
10-32 clip nut2Provides a threaded hole for fastening the module front
10-32 x 1/2-in. Phillips screw2Fastens the module front panel to the clip nut.
Preparing the Slide Rail Assemblies
The slide rail assembly consists of a chassis rail and a slide rail. You need to remove the
chassis rail from the slide rail so that you can install a mounting bracket to the slide rail
and attach the chassis rail to the module (see “Preparing the Module” on page 30). To
remove the chassis rail from the slide rail, follow these steps:
1.Remove the two slide rail assemblies and the rear mounting brackets from the
shipping container.
2.Extend each slide rail assembly until the safety latch snaps into place.
3.Press the safety latch and remove the chassis rail from the slide rail, as shown in
Figure 1-12.
8
Secures the slide rails to the rack rails.
8
4
42Secures the slide rails to their mounting brackets.
panel to the rack rails.
007-4566-00127
1: Installation and Operation
Safety latch
Slide rail
Safety latch
Chassis rail
Figure 1-12Removing the Chassis Rail from the Slide Rail
4.Place one of the mounting brackets on the back of the slide rail, as shown in
Figure 1-13. Adjust the position of the mounting bracket on the slide rail according
to the depth of the rack.
5.Place a barnut next to the mounting bracket. Secure the mounting bracket to the
slide rail by inserting two 10-32 x 1/2-in. screws through the assembly and into the
barnut, as shown in Figure 1-13.
6.Repeat steps 4 and 5 to attach a mounting bracket to the other slide rail.
28007-4566-001
Barnut
Installing the Server System in a Rack
Rear mounting
bracket
Slide rail
Figure 1-13Attaching the Rear Mounting Bracket to the Slide Rail
007-4566-00129
1: Installation and Operation
Preparing the Module
!
To attach the chassis rails to the module, follow these steps:
1.Place the module on a flat, stable surface.
2.Using four 10-24 x 1/4-in. screws, attach one of the chassis rails to the right side of
the module chassis. Ensure that the rail is installed in the correct direction (see
Figure 1-14).
Caution: Use only the 1/4-in. (0.64 cm) length screws. Longer screws damage
internal components in the module.
3.Using five 10-24 x 1/4-in. screws, attach the second rail to the left side of the module
chassis. Again, ensure that the rail is installed in the correct direction.
Figure 1-14Attaching Chassis Rails to the Module Chassis
30007-4566-001
Determining Where to Attach the Slide Rail in the Rack
The module requires two units (2U) of space within the rack (one unit is equivalent to
1.75 inches [44.5 cm]). To determine where you should install the slide rails in the rack,
you must count mounting holes. Each U contains three mounting holes; therefore, in the
2U of space that the module occupies, there are six mounting holes. The bottom hole of
the 2U space is hole 1. The top mounting hole in the 2U space is hole 6. See Figure 1-15.
Note: A module in the rack is identified by the lowest U number that it occupies. For
example, in Figure 1-15 the module resides in U5 (the fifth unit within the rack).
Installing the Server System in a Rack
8
7
6
8
7
6
5th hole
5
5
2nd hole
6th hole
1st hole
4
3
2
1
4
3
2
1
Figure 1-15Mounting Hole Pattern of Rack Vertical Rails
To determine how many mounting holes you must count, use the following formula:
3 x (the lowest U number that the module will occupy) - 2. For example, when you
want to install the module in locations U9 and U10, count 25 mounting holes (3 x 9 - 2)
starting from the bottom of the rack. The 25th hole is the first mounting hole of U9.
2U
2U
007-4566-00131
1: Installation and Operation
Attaching the Slide Rail to the Rack
To attach the slide rail to the rack, follow these steps:
Tip: The slide rails must be level in the rack. To ensure that you install the slide rails
correctly, carefully count the mounting holes on all of the rack rails (two front rails and
two rear rails).
1.Locate eight 10-32 x 1/2-in. Phillips screws, eight shoulder washers, and four
barnuts.
2.Place one of the barnuts inside the rack and align it with the second and third holes
of the selected 2U of space (see Figure 1-16).
Note: The holes in the barnuts are not centered. The barnuts need to be placed in
such a way that the holes are closest to the inside edge of the rack rails. See
Figure 1-16.
3.Insert two screws with shoulder washers through the rack rail to hold the barnut in
place. The screws should not be tightened at this point.
4.Repeat steps 2 and 3 to install the remaining three barnuts on the other three rack
rails (front and rear of rack).
32007-4566-001
Installing the Server System in a Rack
6
Barnut
Inside edge
5
4
3
2
1
6
5
4
2U of space
3
2
1
Figure 1-16Placing the Barnuts on the Rack Rails
007-4566-00133
1: Installation and Operation
5.Insert the front and rear brackets of one of the slide rails between the rack rails and
the barnuts, as shown in Figure 1-17.
6.Tighten the screws on the front- and rear-end of the rails. Do not tighten firmly at
this point, because all screws will be firmly tightened once the module is installed in
the rack.
7.Repeat steps 5 and 6 to attach the second slide rail to the other side of the rack.
7
6
5
7
6
5
Tighten
4
3
2
1
Barnut
4
3
2
1
screws
Rack rail
Figure 1-17Attaching the Slide Rail to the Rack
34007-4566-001
Slide rail assembly
Installing Clip Nuts in Rack Rails
5
6
Clip nuts secure the modules to the rack. To install the clip nuts, slide the clip nuts over
the fifth hole of the selected 2U of space on each of the front rails. See Figure 1-18 for
details.
Installing the Server System in a Rack
8
5th hole
7
6
5
4
3
2
1
Figure 1-18Installing Clip Nuts in Rack Rails
2U space
007-4566-00135
1: Installation and Operation
Installing the Module in the Rack
To install the module in the rack, follow these steps:
Note: Step 2 requires two people.
1.Fully extend the left and right slide rails from the rack until they lock into place.
2.With one person holding each side of the module, align the chassis rails of the
module with the slide rails of the rack.
3.Slide the chassis rails into the slide rails until the chassis rails are stopped by the
safety latches.
4.Press the safety latches on both sides of the module to fully seat the chassis rails into
the slide rails (see Figure 1-19).
5.Firmly tighten all screws (the eight screws that secure the slide rails to the rack
rails).
36007-4566-001
Slide rail extended,
locked in place
Safety latch
Installing the Server System in a Rack
6
5
4
3
2
1
6
5
4
3
2
1
Safety latch
Figure 1-19Pressing the Safety Latches
007-4566-00137
Push
latches
1: Installation and Operation
6.Secure the module to the rack by inserting a 10-32 x 1/2-in. Phillips screw in the top
hole of each chassis ear (see Figure 1-20).
1
0
9
8
7
6
5
4
3
2
1
10-32 x 1/2-in. screws
Figure 1-20Securing the Module to the Rack
Adjusting the Position of the Rackmounted Module
Once the module is installed in the rack, you can adjust the position of the module in the
rack (upward and sideways). To adjust the position of the module, loosen the front
mounting screws, adjust the module to the desired position, and then tighten the
mounting screws.
Caution: Do not lift the module by its bezel; it is not designed to handle the weight of
!
38007-4566-001
the module. Instead, use the chassis ears to move the module (see Figure 1-20).
Removing a Module on Slide Rails from a Rack
To remove the module that is on slide rails on a rack, follow these steps:
1.Power off the module. For instructions on how to power off the module, see
“Powering the Server System On and Off” on page 53.
2.Disconnect all of the cables at the rear of the module.
Warning: Components may be hot. To avoid injury, allow the components to cool
for approximately five minutes before you proceed with these instructions.
3.Remove the two screws that secure the module to the front rails of the rack.
4.Carefully pull the module from the rack until it is stopped by the safety latches.
5.With one person holding each side, release the safety latches on both sides of the
module and pull the module out of the slide rail (see Figure 1-21).
6.Place the module on a flat, stable surface.
Installing the Server System in a Rack
007-4566-00139
1: Installation and Operation
6
5
4
3
2
1
6
5
4
3
2
1
Safety latch
Push
latches
Slide extended,
locked in place
Figure 1-21Releasing the Safety Latches
40007-4566-001
Safety latch
Installing the Server System in a Rack
7.To slide the slide rails back into the rack, push down on the slide latches as shown in
Figure 1-22.
Note: Before you can reinstall a moduleinto the rack, fully extend the slide railsfrom
the rack until they lock into place.
Slide latch
Figure 1-22Releasing the Slide Latches
007-4566-00141
1: Installation and Operation
Rackmounting Modules with Shelf Rails
This section describes how to rackmount a module using shelf rails. The NUMAlink
module, the 4U PCI expansion module, and the TP900 storage module are rackmounted
with shelf rails (also known as fixed rails).
The module ships with shelf rails that must be mounted in the rack. The shelf rails
support the module within the rack.
To attach the shelf rails to the rack, follow these steps:
1.Locate the slot location in the rack in which you will install the module.
2.In the slot location from step 1, position the left shelf rail at a 90-degree angle to the
front and rear rack rails (see Figure 1-23).
3.Insert the top-front bracket tab into one of the narrow slots in the front rack rail.
4.Insert the top-rear bracket tab into the narrow slot in the rear rack rail.
Note: Verify that the tabs are the same height to ensure that the module is level in the
rack.
5.Lower the bottom of the shelf rail until its two lower tabs engage with the wide slots
in the front and rear rack rails.
6.Install the two push-in fasteners that secure the shelf rail to the front and rear rack
rails.
7.Place the EMI gasket bracket on the rear rack rail. Then install the two screws that
secure the bracket and the shelf to the rear rack rail.
8.Repeat steps 2 through 7 for the right shelf rail.
42007-4566-001
Installing the Server System in a Rack
Front/rear
bracket
tabs
Rail
Shelf rail
Torx
screws
EMI
gasket
bracket
Shelf rail
Rear view
Figure 1-23Installing the Shelf Rails in the Rack
9.Set the rear edge of the module on the shelf rails. Then slide the module into the
rack until the module ears are snug against the rack rails. See Figure 1-24.
10. Fasten the module to the front rails of the rack with the screws and clip nuts
provided. See Figure 1-24.
11. Fasten the module to the rear rails of the rack with the screws and clip nuts
provided.
Push-in
fasteners
007-4566-00143
1: Installation and Operation
1
0
9
8
7
6
5
4
3
2
1
10-32 x 1/2-in. screws
Figure 1-24Securing the Module to the Rack
Removing a Module on Shelf Rails from a Rack
To remove the module that is on shelf rails on a rack, follow these steps:
1.Power off the module. For instructions on how to power off the module, see
“Powering the Server System On and Off” on page 53.
2.Disconnect all of the cables at the rear of the module.
Warning: Components may be hot. To avoid injury, allow the components to cool
for approximately five minutes before you proceed with these instructions.
3.Remove the two screws and clip nuts that secure the module to the front rails of the
rack.
4.Remove the two screws and clip nuts that secure the module to the rear rails of the
rack.
44007-4566-001
5.Carefully and slowly slide out the module by holding and pulling on one of the
module ears with one hand, while placing the other hand securely under the
module so that it supports the weight of the module as it clears the rack.
6.Place the module on a flat, stable surface.
Cabling the System Modules to Each Other
Some configurations of an Origin 350 server system will consist of either two or more
modules. This section describes how to cable together these multiple modules.
Note: If your server system is made up of a single module, you can skip this section and
proceed to “Cabling the Server System to a Power Source” on page 48 for instructions to
connect your system to power.
Cabling two modules to each other that consist of a base compute module and a module
to expand the server system’s functionality, such as a system expansion compute
module, entails connecting a cable from base compute module’s NUMAlink connector
to the NUMAlink connector of the added module.
Cabling the System Modules to Each Other
Figure 1-25 shows the cabling of a base compute module to a system expansion compute
module, which can add up to 8 GB of local memory, four PCI/PCI-X slots, and an IO9
card to a server system. (The IO9 card adds real time interrupt input [RTI] and output
[RTO] connectors, an Ethernet port, and a SCSI port to the system.)
007-4566-00145
1: Installation and Operation
System expansion compute module
XIONUMAlink
Base compute module
XIONUMAlink
Figure 1-25Cabling a Base Compute Module to a System Expansion Compute Module
Figure 1-26 shows the cabling of the following server system modules (and other items)
to each other in a 39U rack:
•SGIconsole (system console) to monitor and manage your system. (The LAN2 port
connects to the L2 controller’s Ethernet port with an RJ-45 twisted-pair cable.)
•L2 controller. (Using an RJ-45 twisted-pair cable, the L2 controller’s L1 port
connects to the NUMAlink module’s L1 port.)
•Two 4U PCI expansion modules. (Using a NUMAlink 3 cable, the NUMAlink port
of the top PCI expansion module connects to the NUMAlink module’s 2-B port.
Using another NUMAlink 3 cable, the NUMAlink port of the lower PCI expansion
module connects to the NUMAlink module’s 3-C port.
•NUMAlink module. (Using a NUMAlink 3 cable, the NUMAlink module’s G-7 port
connects to the system expansion compute module’s NUMAlink port. Using
another NUMAlink 3 cable, the NUMAlink module’s F-6 port connects to the base
compute module’s NUMAlink port connector.
•System expansion compute module.
•Base compute module. (Using a SCSI cable, the SCSI port on the base compute
module connects to the TP900 module’s SCSI port.)
•TP900 storage module.
46007-4566-001
Cabling the System Modules to Each Other
SGIconsole
LAN2 port
NUMAlink port
L2 controller
PWRICMB
Console
Modem Ethernet LCD Display L1 Ports
L2 System Controller
13 2
4
Fault
PCI expansion module
PCI expansion module
NUMAlink module
48 VDC
12 VDC
L1 PORT
CB 1
PWR
G
F
E
D
8
7
1
6
2
5
3
4
H
A
B
C
L1 port
NUMAlink port
System expansion compute module
XIONUMAlink
Base compute module
XIONUMAlink
TP900
OUTPUT
GOOD
FAULT
CHANNEL 2CHANNEL 1
SCSI ports
Figure 1-26Cabling Multiple Modules to Each Other
007-4566-00147
1: Installation and Operation
Cabling the Server System to a Power Source
This section describes how to make the following connections to a power source:
•“Connecting a Single-module or Dual-module Server System to a Power Source” on
page 48
•“Connecting a Multiple-module Server System to a Power Source” on page 49
Connecting a Single-module or Dual-module Server System to a Power Source
If you are operating your server system on a table top, connect the base compute module
to a wall power receptacle. If your module resides in a rack, connect the module to a
power distribution unit (PDU) or a power strip. See Figure 1-27 for the location of the
module’s power connector.
PCI 4
PCI 3
CONSOLE
L1 PORT
1
234
XIONUMALINK
PCI 2
PCI 1
Power connector
Figure 1-27Power Connector on the Rear of the Base Compute Module
Figure 1-28 shows the connecting of a dual-module server system (an MPX module and
a base compute module), located on either a tabletop or desktop, to a power source.
48007-4566-001
Cabling the Server System to a Power Source
MPX module
Base compute module
Figure 1-28Connecting a Dual-module System to a Power Source
Connecting a Multiple-module Server System to a Power Source
This section describes how to cable the multiple modules that make up a
multiple-module server system to a power source. Figure 1-29 shows a sample of a
multiple-module server system that includes the following modules (and other items):
•L2 controller
•Two PCI expansion modules
•NUMAlink module
•System expansion compute module
•Base compute module
•TP900 storage module
007-4566-00149
1: Installation and Operation
•Power bay
•Power distribution unit (PDU), Power adapter, and USB hub
Power
source
USB hub
Power
distribution
unit (PDU)
Power
adapter
L2 controller
PCI expansion
module
PCI expansion
module
NUMAlink
module
System expansion
compute module
Base compute
module
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C
H
A
N
N
E
L
2
I.D
.R
A
N
G
E
O
U
T
P
U
G
T
O
O
D
F
A
U
L
T
TP900 storage
module
Power bay
Figure 1-29Connecting Multiple Modules to a Power Source
50007-4566-001
Components within rack
Connecting the System Console
This section explains how to attach and establish a connection between a system console
and an Origin 350 server system. The system console enables you to perform the
following activities:
•Start an IRIX console session to set up networking and other configuration
parameters.
•Monitor your system by reading the status and error message information that the
L1 controller generates.
•Enter L1 controller commands to monitor or change particular system functions.
You can, for example, monitor the speed of fans for a particular module. See the SGIL1 and L2 Controller Software User’s Guide (007-3938-00x) for descriptions of the L1
controller commands that you can use.
•Power on or power off your server system.
The system console can be a server that runs the SGIconsole remote multiserver
management system or a personal computer (PC). SGIconsole provides a central server
control environment that has the following features:
Connecting the System Console
•Support for SGI clusters, partitioned systems, and large single-system-image
servers.
•Expandable to support additional servers.
•Rackmountable, space-efficient platform.
•Software applications and tools for installation and configuration, for console
functionality, and for monitoring and managing system-level performance.
•Web-based user interface.
For instructions on how to attach a system console that runs SGIconsole software to your
server system, see the SGIconsole Hardware Connectivity Guide (007-4340-00x).
To attach a PC to your server system, connect a null modem serial cable between the PC
and the CONSOLE port of the base compute module of your server system (see
Figure 1-30). To establish a connection between your server system and the system
console (PC), follow these steps:
007-4566-00151
1: Installation and Operation
1.Ensure that the L1 controller of the base compute module is powered on. When the
base compute module is connected to a power source, the L1 controller should be
powered on.
Note: When powered on, the L1 controller displays L1 running. If it does not
display L1 running, check the connection between the base compute module and
the power source. In addition, ensure that the circuit breaker of the power source is
on.
2.Power on the system console.
3.Ensure that the system console has the following network settings:
•Baud 38400
•No parity
•8 data bits
•1 stop bit
•Hardware flow control on (RTS/CTS)
4.Type cu -l ttyd2 for an IRIX-based console, or cu -l ttys0 -S38400 for a
Linux-based console, and then press Enter to display the L1 prompt. If the console
uses another operating system, start a terminal emulation program as instructed in
the console’s user documentation.
PCI 4
PCI 3
CONSOLE port
CONSOLE
L1 PORT
1
Figure 1-30Location of the Console Port
52007-4566-001
234
XIONUMALINK
PCI 2
PCI 1
Operating the Server System
This section describes how to operate an Origin 350 server system, as follows:
•“Powering the Server System On and Off” on page 53
•“Connecting Two Server Systems” on page 60
•“Operating the Server System Modules via Front Panel Controls” on page 61
•“Operating the L1 Controller” on page 62
Powering the Server System On and Off
This section describes how to power on and power off your server system (or an
individual module) at a system console, or manually, as follows:
•“Preparing to Power On” on page 53
•“Powering On at the System Console” on page 54
•“Powering On Manually” on page 56
Operating the Server System
•“Powering Off at the System Console” on page 58
•“Powering Off Manually” on page 59
Preparing to Power On
To prepare to power on your system, follow these steps:
1.Confirm that all the modules and other system items are plugged in securely. If
necessary, see “Cabling the System Modules to Each Other” on page 45 for
information.
2.Confirm that all the server system power cables are plugged in securely to a power
source. If necessary, see “Cabling the Server System to a Power Source” on page 48
for information.
007-4566-00153
1: Installation and Operation
3.Ensure that the power switch on the rear panel of each DC-powered NUMAlink and
PCI expansion module that you want to power on is set to the ON (I) position. This
switch enables the L1 controllers of the NUMAlink module and PCI expansion
modules to power on after you turn on the circuit breaker of the PDU.
Note: The Origin 350 base and AC-powered NUMAlink modules do not have a
power switch; when the PDU circuit breaker is on, their L1 controllers are on.
Powering On at the System Console
To power on and boot your system using the system console, follow these steps:
Note: You must manually power on the TP900 storage module by placing the power
switch(es) in the ON (I) position. You must turn this module on before rebooting the
system.
1.If not yet done so, connect a system console to the server system as described in
“Connecting the System Console” on page 51.
2.If the monitors and other peripherals are equipped with voltage select switches,
verify that they are set for the appropriate AC voltage and plug them in. Note that
they are normally plugged into sources outside the rack system.
3.Turn on the circuit breaker switch of the PDU as shown in Figure 1-31.
54007-4566-001
Operating the Server System
Power distribution unit (PDU)
Wall power
source
Circuit breaker switch
Figure 1-31PDU Circuit Breaker
4.Verify that all of the L1 controllers display “L1 running.” If any L1 controllers are
not running, contact your SGI system support engineer (SSE).
5.At the system console, access the L2 controller by entering the following command:
$> /stand/sysco/bin/12term
6.From the L2 prompt, display the system configuration by entering the following
command:
L2> cfg
This command lists the modules that the L2 controller detects in the system and
their system controller addresses. If a module that you want to power on does not
appear in the list, it will not power on. Ensure that the module’s L1 controller is
running and that the module is cabled properly.
7.From the L2 prompt (L2>), power on an individual module by entering the
following command. (If you want to power on the entire system, proceed to Step 8.)
L2> r <rack#> s <slot#> pwr u
For example, to power on an Origin 350 base compute module in rack 1, slot 18,
enter the following command:
L2> r 1 s 18 pwr u
The slot number is the unit number of the module within the rack.
007-4566-00155
1: Installation and Operation
If you want to power on several selected modules of a rack at the same time, you
must enter the rack number followed by the slot numbers of the modules that you
want to power on. For example, to power on the modules in slots 18, 20, and 22,
enter the following command:
L2> r 1 s 18,20,22 pwr u
8.If you want to power on the entire system, enter the following command:
L2> pwr u
(The default setting for the pwr u command is all racks and slots.)
9.When the L2 prompt appears, you will not see the output that is produced during
the power-on procedure unless you redirect the keyboard input from the L2
controller to the normal console by typing control d.
L2> ctrl d
10. When the power-on procedure completes, the following System Maintenance Menu
appears on the system console.
System Maintenance Menu
1) Start System
2) Install System Software
3) Run Diagnostics
4) Recover System
5) Enter Command Monitor
Option?
11. Select option 1 “Start System” to boot the IRIX operating system.
Powering On Manually
To power on your system or an individual module manually, follow these steps:
1.If the monitors and other peripherals are equipped with voltage select switches,
verify that they are set for the appropriate AC voltage and plug them in. Note that
they are normally plugged into power sources outside the rack system.
2.Turn on the circuit breaker switch of the PDU as shown in Figure 1-31 on page 55.
56007-4566-001
Operating the Server System
3.Press the power buttons or power switches on each of the modules that you want to
power on in the following order:
a.For the PCI expansion module or a NUMAlink module, press the power switch
on the module’s rear panel to the ON (I) position to start the module’s L1
controller. Then, push in the On/Off switch with LED in the front of the module
to power on the rest of the module’s internal components.
Note: The Origin 350 base and AC-powered NUMAlink modules do not have a
power switch. To power on their L1 controllers, plug the modules to the PDU.
b.For the TP900 storage module, press the power button on its rear panel to ON
(I).
c.For the MPX module, the base compute module, and the system expansion
compute module, press the power button with the LED on the front panel of
each module (see Figure 1-32).
Power button
with LED
Figure 1-32Location of the Power Button
007-4566-00157
1: Installation and Operation
Powering Off at the System Console
To power off your system using the system console, follow these steps:
Caution: If you power off the system before you halt the operating system, you can lose
!
data.
1.Shut down the IRIX operating system by entering the following command:
# init 0
2.To access the L2 prompt, direct the keyboard input to the L2 controller by entering
Ctrl+T.
$> ctrl t
3.From the L2 prompt (L2>), power off an individual module by entering the
following command. (If you want to power off the entire system, proceed to Step 4.)
L2> r <rack#> s <slot#> pwr d
For example, to power off an Origin 350 base compute module in rack 1, slot 18,
enter the following command:
L2> r 1 s 18 pwr d
The slot number is the unit number of the module within the rack.
If you want to power off several selected modules from the rack at the same time,
enter the rack number followed by the slot numbers of the modules that you want
to power off. For example, to power off the modules in slots 18, 20, and 22, enter the
following command:
L2> r 1 s 18,20,22 pwr d
4.If you want to power off all of the modules within the rack, enter the following
command:
L2> pwr d
(The default setting for the pwr d command is all racks and slots.)
“Powered Down” appears on the L1 display when the module is powered off. The
L1 controller is still powered on.
58007-4566-001
Powering Off Manually
!
Operating the Server System
5.To power down an L1 controller of a DC-powered NUMAlink or PCI expansion
module, set the power switch to the Off (O) position. The power switch of the
NUMAlink or PCI expansion module is located in the upper-left corner of the rear
of the module.
Note: The Origin 350 base and AC-powered NUMAlink modules do not have a
power switch. To power down their L1 controllers, unplug the modules from the
PDU.
To power off your system manually, follow these steps:
Caution: If you power off the system before you halt the operating system, you can lose
data.
1.Shut down the IRIX operating system by entering the following command:
# init 0
2.Press the power buttons or power switches on each of the modules that you want to
power off. You may power off the modules in any order:
•For the PCI expansion module or DC NUMAlink module, press the power
switch on the module’s rear panel to the OFF (O) position to turn off the
module’s L1 controller. Then, push on the On/Off switch with LED in the front
of the module to power off the rest of the module’s internal components. The
green LED on the On/Off switch turns off when the module is powered off.
Note: The Origin 350 base and AC-powered NUMAlink modules do not have a
power switch. To power off their L1 controllers, unplug the modules from the
PDU.
•To power off the TP900 storage module, press the power button on its rear panel
to the OFF (O) position.
•To power off the base compute module, the system expansion compute module,
and the MPX module, press the power button with the LED on the front panel
of each module (see Figure 1-32 on page 57).
007-4566-00159
1: Installation and Operation
Connecting Two Server Systems
Before connecting two Origin 350 server systems to each other, you must assign unique
system ID numbers to the servers, as follows:
1.Designate one of the servers as the master server and the other server as the slave.
2.Connect a console to the slave server (see “Connecting the System Console” on
page 51), and power on the server (see “Powering the Server System On and Off”
on page 53).
3.Use the brick slot <slotnumber> L1 command to set the slave system ID
number to a higher number than the master system ID number. For example, if the
master server’s L1 prompt indicates that its ID number is 01 (001c01-L1>), then the
slave system ID number should be 02 or higher (001c02-L1>).
001c01-L1>brick slot 02
brick slot set to 02.
See the SGI L1 and L2 Controller Software User’s Guide (007-3938-00x) for more
information on L1 commands.
To connect two Origin 350 server systems to each other with a NUMAlink 3 cable, follow
these steps:
1.Power off both servers (see “Powering the Server System On and Off” on page 53).
2.Connect the NUMAlink 3 cable to the NUMAlink connectors on both servers.
3.Connect a system console to the master server, as described in “Connecting the
System Console” on page 51.
4.Power on both servers as described in “Powering the Server System On and Off” on
page 53.
The console outputshould indicate that the processors and memory on both servers have
been discovered. If the slave server has not been discovered, use the reset L1 command
to perform a reset of the system.
Note: For server-to-server communication to work correctly, the network mode on the
server must be set to 422 (when connecting a PC [system console] to a serial port). Use
the network L1 command to set the network mode. (See the SGI L1 and L2 ControllerSoftware User’s Guide (007-3938-00x) for more information on L1 commands.)
60007-4566-001
Operating the Server System Modules via Front Panel Controls
The front panel of the base compute module, the system expansion compute module,
and the MPX module provides the following control features, as shown in Figure 1-33:
Note: If your server system includes other modules such as the TP900 and the PCI
expansion module, see the operating instructions provided for those modules.
•Status LEDs. The front panel has the following LEDs:
•Power button LED. This LED illuminates green when the internal components
are on.
•Service-required LED. This LED illuminates yellow to indicate that an item is
not functioning properly (for example, a fan is off), but the server is still
operating.
•Failure LED. This LED illuminates red to indicate that a failure has occurred
and the server is down.
•Power button. Press this button to power on the server. Alternatively, you can
power on the server system at a system console.
Operating the Server System
•Reset button. Press this button to reset the internal processors and ASICs. The reset
will cause a memory loss. (To perform a reset without losing memory, see the NMI
button information that follows.)
•NMI button. Press the NMI (non-maskable interrupt) button to reset the internal
processors and ASICs without losing memory. Register data and memory are stored
in a /var/adm/crash file.
007-4566-00161
1: Installation and Operation
L1 controller display
Figure 1-33Front Panel Functions
Operating the L1 Controller
The L1 controller operates in one of the two following modes:
•L1 mode. The L1 prompt (001c01-L1>) is visible and all input is directed to the L1
command processor.
•Console mode from L1. Output from the system is visible and all input is directed
to the system.
The L1 controller is ready to accept commands when you see a prompt of the following
form:
001c01-L1>
See the SGI L1 and L2 Controller Software User’s Guide (007-3938-00x) for a detailed list of
L1 commands.
Failure LED
Service-required LED
NMI
Reset
Power button
with LED
62007-4566-001
Operating the Server System
To enter console mode, press Ctrl+D at the L1 prompt, as follows:
001c01-L1> Ctrl+D
entering console mode 001c01 console, <CTRL-T> to escape to L1
.
<system output appears here>
.
To return to L1 mode, press Ctrl+T, as follows:
Ctrl+T
escaping to L1 system controller
001c01-L1>
At this point, you can enter any L1 command. When the command completes execution,
the L1 returns to console mode:
re-entering console mode 001c01 console, <CTRL-T> to escape to L1
To permanently engage the L1 mode, press Ctrl+T and then enter the l1 command, as
follows:
Ctrl+T
escaping to L1 system controller
001c01-L1> l1
L1 command processor engaged, <CTRL-D> for console mode.
001c01-L1>
007-4566-00163
Chapter 2
2.System Overview
This chapter provides an overview of the physical and architectural aspects of your SGI
Origin 350 server system. System configurations and components are described and
illustrated. This chapter includes the following sections:
•“Physical Features” on page 66
•“Functional Architecture” on page 68
•“System Configurations” on page 75
•“System Components” on page 80
007-4566-00165
2: System Overview
Physical Features
The Origin 350 server system is the latest advancement in the SGI NUMAflex approach
to modular computing. It is designed to deliver maximum sustained performance in a
compact system footprint. Independent scalingof computationalpower,I/O bandwidth,
and in-rack storage lets you configure a system to meet your unique computational
needs. The small footprint and highly modular design of the Origin 350 server system
makes it ideal for computational throughput, media streaming, or complex data
management.
The Origin 350 server system can be expanded from a standalone 2 processor server
system to a high-performance server system with 32 processors, 64 GB of memory, and
62 PCI/PCI-X slots. For most configurations, the Origin 350 server system is housed in
one 17U rack or one 39U rack as shown in Figure 2-1; however, for small system
configurations, the Origin 350 server system can be placed on a table top.
Systems that are housed in 17U racks have a maximum weight of approximately 488 lb
(221 kg). The maximum weight of systems that are housed in 39U racks is approximately
1,100 lb (499 kg). The racks have casters that enable you to remove the system from the
shipping container and roll it to its placement at your site.
See Chapter 1, “Installation and Operation,” for more information about installing your
system. Your Site Planning Guide for SGI Origin 350 and SGI Onyx 350 Rack Systems
(007-4649-00x) also provides additional physical planning information.
For more information about the technical specifications of your system, see Appendix A,
“Technical Specifications,” in this manual.
66007-4566-001
17U rack
Physical Features
39U rack
Figure 2-1Example of SGI Origin 350 Server Systems
007-4566-00167
2: System Overview
Functional Architecture
The Origin 350 server system is based on the SGI NUMAflex architecture, which is the
third-generation shared-memory system architecture that is the basis of SGI HPCservers
and supercomputers. The NUMAflex architecture is specifically engineered to provide
technical professionals with superior performance and scalability in a design that is easy
to deploy, program, and manage. It has the following features:
Shared access of processors, memory, and I/O. The Bedrock ASICs and the NUMAlink
interconnect functions of the NUMAflex architecture enable applications to share
processors, memory, and I/O devices.
•Each Bedrock ASIC in the system is an 8-input by 6-output crossbar that acts as the
memory controller between processors and memory in the system for both local
and remote memory accesses.
•The NUMAlink interconnect channels information between all the modules in the
system to create a single contiguous memory in the system of up to 64 GB and
enables every processor in a system direct access to every I/O slot in the system.
Together, the Bedrock ASICs and the NUMAlink interconnect enable efficient access to
processors, local and remote memory, and I/O devices without the bottlenecks
associated with switches, backplanes, and other commodity interconnect technologies.
System scalability. The NUMAflex architecture incorporates a low-latency,
high-bandwidth interconnect that is designed to maintain performance as you scale
system computing, I/O, and storage functions. For example, the computing dimension
in somesystem configurations can rangefrom 4 to 32 processors in a single system image
(SSI). To increase the number of processors beyond 32, you can cluster Origin 350 server
systems together. The maximum number of processors in a clustered configuration is
128.
Efficient resource management. The NUMAflex architecture is designed to run complex
models and, because the entire memory space is shared, large models can fit into
memory with no programming restrictions. Rather than waiting for all of the processors
to complete their assigned tasks, the system dynamically reallocates memory, resulting
in faster time to solution.
68007-4566-001
Functional Architecture
The Origin 350 server system can be configured with or without a NUMAlink module.
When the system does not have a NUMAlink module, the system can contain from 2 to
8 processors. When the system does have a NUMAlink module, the system can contain
from 4 to 32 processors.
Note: For more information about these configurations, see “System Configurations” on
page 75.
The processors are housed in compute modules (see Figure 2-2) that can be configured
as one the following devices:
•Base compute module with base I/O functionality. All Origin 350 server systems
contain one base compute module that contains the following components:
–Two or four 64-bit MIPS RISC processors.
–4 MB of secondary (L2) cache per processor.
–1 GB to 8 GB of local memory.
–Four PCI/PCI-X slots.
Note: The lowermost PCI/PCI-X slot comes with a factory-installed IO9 PCI 66
MHz card. Consequently, the slot (third slot down), which is on the same bus as
the slot in which the IO9 PCI card is installed, can only support a PCI card that
runs at a speed of 66 MHz or slower. Therefore, the two uppermost slots can
support PCI/PCI-X cards, while the third one down can only support a PCI card.
–One IO9 PCI card that comes factory-installed in the lowermost PCI/PCI-X slot.
The IO9 card has a real time interrupt input port and output port, an Ethernet
port, and a SCSI connector. The IO9 card is also needed to support the module’s
two SCSI disk drives, the DVD-ROM, a serial port, and a daughtercard with
three more serial ports and two PS/2 connectors for a keyboard and a mouse.
–One Bedrock ASIC (the crossbar between the processors, local memory, the
network interface, and the I/O interface).
•Expansion compute module (no base I/O functionality). For Origin 350 server
systems that contain more than one compute module, the additional modules are
expansion compute modules. The only difference between the base compute
module and the expansion compute module is that the expansion compute module
007-4566-00169
2: System Overview
may or may not contain an IO9 PCI card and the devices and connector ports the
IO9 card supports.
Note: Each system requires one IO9 PCI card; this required card resides in the base
compute module. The system can contain additional IO9 cards that reside in the
expansion compute modules; these cards are required only when you want
additional SCSI hard disk drives, DVD-ROMs, and/or the connectors the IO9 card
supports.
For more information about the compute module (base compute module and system
expansion compute module), see “Compute Module” on page 83.
Base compute moduleExpansion compute module
Ethernet port
SCSI port
Serial ports
RTI port
RTO port
L2
L2
L2
L2
PCI bus 2 slot 2
PCI bus 2 slot 1
PCI bus 1 slot 2
PCI bus 1 slot 1
IO9
CPU
CPU
CPU
CPU
1.6 GB/s
1.6 GB/s
SCSI port
L1 control
Memory/
Directory
3.2 GB/s
Bedrock
2.4 GB/s2.4 GB/s
PIC
DVD-ROM
Two disks
USB port
Console port
NUMAlink 3 channel
3.2 GB/s full-duplex
(1.6 GB/s each direction)
Xtown2 channel
2.4 GB/s full-duplex
(1.2 GB/s each direction)
Memory/
Directory
3.2 GB/s
1.6 GB/s
Bedrock
1.6 GB/s
PIC
L1 control
Figure 2-2Base Compute Module Connected to an Expansion Compute Module
CPU
CPU
CPU
CPU
PCI bus 2 slot 2
PCI bus 2 slot 1
PCI bus 1 slot 2
PCI bus 1 slot 1
USB port
Console port
L2
L2
L2
L2
70007-4566-001
Functional Architecture
When the system consists of a base compute module only, the maximum number of
processors 4. To increase the number of processors in the system, the base compute
module can connect to one or more expansion compute modules. When a system has
more than two compute modules, a NUMAlink module is required. The NUMAlink
module is a 2U AC-powered device that can connect up to eight compute modules. See
Figure 2-3.
4-processor
expansion compute module
4-processor
expansion compute module
Port 6
Port 5
Port 4
4-processor
base compute module
NUMAlink module
GH
F
Router
ASIC
E
D
C
4-processor
expansion compute module
4-processor
expansion compute module
Port 8Port 7
A
B
expansion compute module
Port 1
Port 2
Port 3
4-processor
Figure 2-3Compute Modules Connected via a NUMAlink Module
007-4566-00171
4-processor
expansion compute module
4-processor
expansion compute module
NUMAlink 3 channels
3.2 GB/s full-duplex
(1.6 GB/s each direction)
2: System Overview
To increase the amount of memory in the system, the compute modules can connect to a
memory and PCI expansion (MPX) module as shown in Figure 2-4.The MPX module is
a 2U AC-powered device that can have from 1 GB to 8 GB of memory. This module also
has four PCI/PCI-X slots.
For more information about the MPX module, see “MPX Module” on page 86.
Base compute moduleMPX module
Ethernet port
SCSI port
Serial ports
RTI port
RTO port
L2
L2
L2
L2
PCI bus 2 slot 2
PCI bus 2 slot 1
PCI bus 1 slot 2
PCI bus 1 slot 1
IO9
CPU
CPU
CPU
CPU
1.6 GB/s
1.6 GB/s
SCSI port
L1 control
Memory/
Directory
3.2 GB/s
Bedrock
2.4 GB/s2.4 GB/s
PIC
DVD-ROM
Two disks
USB port
Console port
NUMAlink 3 channel
3.2 GB/s full-duplex
(1.6 GB/s each direction)
Xtown2 channel
2.4 GB/s full-duplex
(1.2 GB/s each direction)
Memory/
Directory
3.2 GB/s
Bedrock
PIC
L1 control
PCI bus 2 slot 2
PCI bus 2 slot 1
PCI bus 1 slot 2
PCI bus 1 slot 1
USB port
Console port
Figure 2-4Base Compute Module Connected to an MPX Module
To increase the number of PCI/PCI-X slots, the base compute module can connect to an
MPX module. The MPX module is a 2U AC-powered device that has four PCI/PCI-X
slots. This module also increases the amount of memory by 1 GB to 8 GB.
To increase the number of PCI slots, the base compute module can connect to a PCI
expansion module. The PCI expansion module is a 4U, DC-powered device that can have
either 6 or 12 PCI slots.
72007-4566-001
Functional Architecture
The MPX and PCI expansion modules are peer-attached devices; they connect to the
compute module via the NUMAlink connector. If the system has a NUMAlink module,
the MPX and PCI expansion modules connect to the compute modules via the
NUMAlink module (see Figure 2-5).
For more information about the MPX module, see “MPX Module” on page 86. For more
information about the PCI expansion module, see “PCI Expansion Devices” on page 87.
007-4566-00173
2: System Overview
4-processor
Expansion compute module
MPX module
Port 6
Port 5
Port 4
4-processor
Base compute module
NUMAlink module
GH
F
Router
ASIC
E
D
C
4-processor
Expansion compute module
MPX module
Port 8Port 7
A
B
Expansion compute module
Port 1
Port 2
Port 3
4-processor
PCI expansion module
Figure 2-5Connection of MPX and PCI Expansion Modules to Compute Modules via
74007-4566-001
PCI expansion module
NUMAlink 3 channels
3.2 GB/s full-duplex
(1.6 GB/s each direction)
NUMAlink Module
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