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007-5832-001 53
Chapter 5
5. Optional Octal Router Chassis Information
This chapter describes the optional NUMAlink router technology available in SGI UV 2000
systems consisting of two or more racks. This router technology is available in an enclosure
“package” known as the Octal Router Chassis (ORC). This optional ORC chassis can be mounted
on the top of the SGI UV 2000 rack. NUMAlink 6 advanced router technology reduces UV 2000
system data transfer latency and increases bisection bandwidth performance. Router option
information is covered in the following sections:
• “Overview” on page 53
• “SGI UV 2000 Series NUMAlink Octal Router Chassis” on page 54
• “SGI UV 2000 External NUMAlink System Technical Specifications” on page 56
Overview
At the time this document was published, external NUMAlink router technology was available to
support from 2 to 512 SGI UV 2000 racks. Other “internal” NUMAlink router options are also
available for high-speed communication between smaller groups of SGI UV 2000 racks. For more
information on these topics, contact your SGI sales or service representative.
The standard routers used in the SGI UV 2000 systems are the NL6 router blades located internally
to each IRU. Each of these first level routers contain a single 16-port NL6 HARP router ASIC and
connect to eight compute nodes within the IRU. The remaining eight ports of the internal router
are used to connect to other NL6 router blades or to the Octal Router Chassis. The NUMAlink
ORC enclosure is located at the top of each SGI UV 2000 rack equipped with the option. Each
top-mounted NUMAlink ORC enclosure contains one to eight 16-port HARP ASIC based router
boards. Each of these router boards has a single NL6 HARP router ASIC. This is the same router
ASIC that is used in the NL6 router blades installed inside the system IRUs.
Note that the ORC chassis also contains a chassis management controller (CMC) board, three
power supplies and its own cooling fans.
- UV 2000 System User Guide 1
- Record of Revision 3
- Contents 5
- 007-5832-001 vii 7
- List of Figures 9
- List of Tables 11
- About This Guide 13
- Chapter Descriptions 14
- Related Publications 15
- Conventions 17
- Product Support 18
- Reader Comments 18
- 1. Operation Procedures 19
- Power Connections Overview 20
- 007-5832-001 3 21
- 1 (on) position 21
- 4 007-5832-001 22
- 1: Operation Procedures 22
- 007-5832-001 5 23
- 6 007-5832-001 24
- System Connections Overview 25
- System Controller Access 26
- 007-5832-001 9 27
- Using a Static IP Address 28
- System Control Overview 30
- 007-5832-001 13 31
- The Command Line Interface 32
- Command Options for Power On 33
- 16 007-5832-001 34
- Booting Directly From a CMC 35
- 18 007-5832-001 36
- , as follows: 37
- \efi\SuSE\elilo 37
- Power off a UV System 38
- 22 007-5832-001 40
- Optional Components 41
- 24 007-5832-001 42
- 2. System Control 43
- 26 007-5832-001 44
- 2: System Control 44
- CMC Overview 45
- 28 007-5832-001 46
- System Controller Interaction 47
- IRU Controllers 48
- 007-5832-001 31 49
- 32 007-5832-001 50
- 3. System Overview 51
- SGI UV 2000 52
- System Models 53
- (System Management Node) 54
- 1U (I/O) Expansion Slot 54
- System Architecture 55
- IRU Backplane Connections 56
- Backplane 56
- System Features 57
- TOP NODE PCA 58
- HARP PCA 58
- BOTTOM NODE PCA W/BMC 58
- Distributed Shared I/O 59
- 42 007-5832-001 60
- 3: System Overview 60
- 007-5832-001 43 61
- System Components 62
- 007-5832-001 45 63
- Bay (Unit) Numbering 64
- Rack Numbering 64
- Optional System Components 64
- 4. Rack Information 65
- SGI UV 2000 Series Rack (42U) 66
- Characteristic Specification 70
- Overview 71
- 54 007-5832-001 72
- 007-5832-001 55 73
- ORC chassis 74
- 6. Add or Replace Procedures 75
- 58 007-5832-001 76
- 6: Add or Replace Procedures 76
- 007-5832-001 59 77
- SGI x16 PCIe 78
- Connectors 78
- Support levels in 78
- 62 007-5832-001 80
- 007-5832-001 63 81
- 64 007-5832-001 82
- 007-5832-001 65 83
- Chapter 7 85
- Troubleshooting Chart 86
- LED Status Indicators 87
- Compute/Memory Blade LEDs 88
- SGI Electronic Support 89
- 72 007-5832-001 90
- 007-5832-001 73 91
- System-level Specifications 93
- Physical Specifications 94
- Environmental Specifications 95
- Power Specifications 96
- I/O Port Specifications 97
- Pin Number Function 98
- Ethernet Port 99
- Serial Ports 100
- Pin Assignment Description 101
- USB Type A Connector 102
- Safety Information 103
- 86 007-5832-001 104
- Regulatory Specifications 105
- Electromagnetic Emissions 106
- Equipment Regulations 107
- Shielded Cables 108
- Electrostatic Discharge 108
- Laser Compliance Statements 109
- Lithium Battery Statement 110
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