Voltaire Grid Director 4036 User manual

.
Voltaire
®
4036/2036 Grid Director
April 2009
Doc P/N: DOC-00619
Rev: A01
4036/2036 Software Version: 2.0

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Copyright © 2009 Voltaire, Inc. All rights reserved.
Voltaire Document Part Number: DOC-00619
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Overview
Voltaire’s integrated family of switching hardware and network virtualization software delivers
a high-performance, intelligent solution for deploying clusters and grids. Leveraging
InfiniBand technology, Voltaire solutions offer improved application performance, resource
utilization and data center scalability for its customers’ high-performance computing needs.
Voltaire switching solutions are available in a multitude of port counts to facilitate the
deployment of powerful clusters ranging from a few to thousands of nodes.
The 4036 and the 2036 are part of the Grid Director family:
This Manual is divided as follows:
Part 1: Getting Started and Voltaire Device Manager
Part 2: CLI Reference Section
Part 3: Appendix and Glossary
NOTE:
Terms and CLI examples are interchangeable between the 2036 and 4036 unless specified
otherwise.
CAUTION:
Voltaire highly recommends against using root permissions for its switches. Use of root
permission for the switches is at the user’s own risk.

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About this Manual
This preface describes the audience, organization and command syntax conventions of this
4036/2036 User Manual. It also provides information on how to obtain related documentation
and technical assistance.
Information about hardware installation of the respective Voltaire switches can be found in the
4036/2036 Installation Manual [DOC-00467]
NOTE:
Refer to the latest Voltaire release notes for last minute updates and restrictions.
The Voltaire Technical Support Center (TSC) is at your service. You may access Warranty
Service through our Web Request Form by using the following link:
http://www.voltaire.com/support.html
Contact Us:
Please send your documentation-related comments and feedback or report mistakes
to [email protected].
We are committed to constant and never-ending improvement. Your input will greatly
help us in our endeavor.
Audience
This manual is primarily intended for system administrators who are familiar with the
fundamentals of router-based internetworking and network storage devices, but who might
not be familiar with the specifics of Voltaire products or the routing protocols supported by
Voltaire products
It is assumed that readers are familiar with InfiniBand technology and terminology.

Overview
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Related Documentation
4036/2036 Getting Started Guide - Voltaire QDR Solution (LIT-00037)
Voltaire 4036/2036 Installation Manual [DOC-00467]
Unified Fabric Manager (UFM) User Manual, Voltaire [DOC-00600]
Document Conventions
NOTE:
Text set off in this manner presents clarifying information, specific instructions, commentary,
sidelights, or interesting points of information.
IMPORTANT:
Text set off in this manner indicates important information regarding a specific feature.
CAUTION:
Text set off in this manner indicates that failure to follow directions could result in damage to
equipment or loss of information.

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Contents
Overview ..................................................................................................................................................... iii
About this Manual...............................................................................................................................iii
Audience ............................................................................................................................................iii
Related Documentation..................................................................................................................... iv
Document Conventions..................................................................................................................... iv
PART 1: 4036/2036 Device Manager......................................................................................................... ix
Chapter 1. Introduction ....................................................................................................................... 1-1
1.1 About
InfiniBand....................................................................................................................1-2
1.2 Scaling-Out Data Centers with QDR ....................................................................................1-3
1.3 4036
System Overview.........................................................................................................1-4
1.4 2036
System Overview.........................................................................................................1-4
1.5 4036/2036
Functional Block Diagram...................................................................................1-5
1.6 Voltaire Switch Management ................................................................................................1-5
Chapter 2. CLI Overview...................................................................................................................... 2-1
2.1 Interfaces for CLI Connection ...............................................................................................2-2
2.2 Telnet/SSH Client Settings ...................................................................................................2-2
2.3 CLI
Usage Tips .....................................................................................................................2-3
2.4 Keyboard Usage in CLI Operation........................................................................................2-3
2.5 CLI
Command Prompt ..........................................................................................................2-5
2.6 CLI
Command Structure .......................................................................................................2-6
2.7 CLI Case Sensitivity..............................................................................................................2-7
2.8 Built-in Test ...........................................................................................................................2-7
Chapter 3. Initial System Setup (CLI)................................................................................................. 3-1
3.1 Prerequisite Tasks ................................................................................................................3-2
3.2 First-Time Configuration .......................................................................................................3-2
3.3 Collecting Required Information ...........................................................................................3-2
3.4 Connecting a Console ..........................................................................................................3-4
3.5 Starting a CLI Session ..........................................................................................................3-5
3.6 Initial System Configuration for Management.......................................................................3-6
3.7 Time Settings ........................................................................................................................3-7
3.8 Configuring Passwords.........................................................................................................3-8
3.9 Verifying Configuration .........................................................................................................3-9
Chapter 4. Built-in-Test ....................................................................................................................... 4-1
4.1 Overview ...............................................................................................................................4-2
4.2 Tests, Description and Explanations ....................................................................................4-2

Contents
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Chapter 5. Updating, Backing up, and Upgrading the Software ..................................................... 5-1
5.1 Prerequisites .........................................................................................................................5-2
5.2 Software Update ...................................................................................................................5-3
5.3 Firmware Upgrade ................................................................................................................5-6
Chapter 6. Handover Mechanism and Redundancy/High Availability............................................ 6-1
6.1 SM (Subnet Manager) Handover..........................................................................................6-2
6.2 Redundant
Power Supplies ..................................................................................................6-2
6.3 Fans ......................................................................................................................................6-3
Chapter 7. 4036/2036 Device Manager............................................................................................... 7-1
7.1 Device Manager Overview....................................................................................................7-2
7.2 4036/2036
- Obtaining Device Information ...........................................................................7-2
7.3 Obtaining Detailed Information via the Device M .................................................................7-3
7.4 4036/2036 Local SM Information..........................................................................................7-4
7.5 4036/2036
Temperature Information ....................................................................................7-6
7.6 4036/2036 Reset...................................................................................................................7-7
7.7 Viewing the Event and Error Log ..........................................................................................7-8
Chapter 8. Remote Configuration Settings .......................................................................................8-1
8.1 Overview ...............................................................................................................................8-2
8.2 Setting the Remote Configuration Parameters.....................................................................8-2
Chapter 9. SecuritySettings ............................................................................................................... 9-5
9.1 Overview ...............................................................................................................................9-6
9.2 SCP - Secure Export and Import ..........................................................................................9-6
9.3 Enabling/Disabling Non-secure Protocols ............................................................................9-7
Chapter 10. Unified Fabric Manager Support....................................................................................10-8
Chapter 11. FactoryDefaults ............................................................................................................ 11-10
Chapter 12. QSFP Port Management ...............................................................................................12-11
Chapter 13. Configuring the Subnet Manager ................................................................................ 13-13
Chapter 14. Configuring Routing Algorithms .................................................................................14-14
14.1 Supported Algorithms .......................................................................................................14-15
14.2 Min Hop (Balanced Routing) Scheme ..............................................................................14-15
14.3 Up/Down Routing Scheme ...............................................................................................14-15
14.4 Setting the Routing Algorithm ...........................................................................................14-16
Chapter 15. Utilities............................................................................................................................ 15-17
PART 2: CLI Reference Section.......................................................................................................... 15-18
Chapter 16. Getting Started with the CLI and Top Level Structure ................................................ 16-1
16.1 CLI Overview ......................................................................................................................16-2
16.2 CLI Initial Setup...................................................................................................................16-2
16.3 CLI
Structure.......................................................................................................................16-2
Chapter 17. Guest Mode...................................................................................................................... 17-1
17.1 Accessing the Guest Mode.................................................................................................17-2
17.2 Guest Mode Command Reference .....................................................................................17-2

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Chapter 18. Admin Mode..................................................................................................................... 18-1
18.1 Overview .............................................................................................................................18-2
18.2 Accessing the Admin (Privileged) Mode.............................................................................18-2
18.3 Admin (Privileged) Mode Command Reference .................................................................18-3
18.4 Health Monitor...................................................................................................................18-12
18.5 Logs Mode ........................................................................................................................18-13
18.6 Utilities Mode ....................................................................................................................18-18
Chapter 19. Configuration (config) Mode ........................................................................................19-35
19.1 Overview ...........................................................................................................................19-36
19.2 Accessing the config Mode...............................................................................................19-36
19.3 config Mode Command Reference ...................................................................................19-36
19.4 Interface Mode ..................................................................................................................19-39
19.5 Names Mode.....................................................................................................................19-42
19.6 NTP Mode.........................................................................................................................19-45
19.7 Ports Mode........................................................................................................................19-46
19.8 Remote Mode ...................................................................................................................19-48
19.9 Security Mode ...................................................................................................................19-55
19.10 SM (Subnet Manager) Mode ............................................................................................19-57
PART 3: Appendices............................................................................................................................ 19-65
Appendix A Acronyms.......................................................................................................................... A-1
Appendix B InfiniBandTM Standard Glossary ................................................................................... B-4

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Figures
Figure 1-1. Voltaire 4036/2036 Grid Director Functional Diagram............................................................ 1-5
Figure 2-1. Telnet/SSH Client Settings – Example (using Putty).............................................................. 2-2
Tables
Table 2-1. CLI Key Functions ................................................................................................................... 2-3
Table 2-2. CLI Command Prompts ........................................................................................................... 2-5
Table 2-3. Basic Commands..................................................................................................................... 2-6
Table 3-1. Switch Installation Checklist .................................................................................................... 3-3
Table 3-2. Terminal Emulation Configuration ........................................................................................... 3-4
Table 7-1. Information (Front Show) Parameters ..................................................................................... 7-3
Table 7-2. Local SM Information Parameters ...........................................................................................7-4
Table 7-3. Temperature Show Parameters...............................................................................................7-7
Table 17-1. Common Options............................................................................................................... 18-19

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PA AR RT T 1 1: :
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40 03 36 6/ /2 20 03 36 6 D De ev vi ic ce e M Ma an na ag ge er r

1
1
Chapter 1. Introduction
In This Chapter:
This chapter provides a brief introduction to InfiniBand technology and describes the Voltaire
product family.
It includes information on the following topics:
1.1 About InfiniBand .......................................................................................................... 1-2
1.2 Scaling-Out Data Centers with QDR........................................................................... 1-3
1.3 4036
System Overview ...............................................................................................1-4
1.4 2036
System Overview ...............................................................................................1-4
1.5 4036/2036
Functional Block Diagram ......................................................................... 1-5
1.6 Voltaire Switch Management ...................................................................................... 1-5

Chapter 1 Introduction
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1.1 About InfiniBand
InfiniBand technology is a high-performance channel-based interconnect architecture that
provides increased scalability and reliability for servers and other Internet infrastructure
equipment. InfiniBand architecture defines the entire stack, from the physical to the
application layers APIs and fabric management.
InfiniBand has unique capabilities for direct data placement implemented by RDMA and for
OS bypassing, discovery, fail-over, remote boot, I/O sharing, and other advanced features.
InfiniBand is the IT industry's solution for expanding data network centers to prepare for the
next generation of communications. High Performance datacenters with high performance
applications have created the need for increased processing power, larger stores of
information and a greater, more reliable flow of data. As the present architecture struggled
under the current load of information, it was painfully clear that a solution was needed in
order to manage the increasing demands of the future. The giants of the IT industry
(Compaq, Dell, IBM, Intel, HP, SUN and Microsoft followed by more than 230 companies)
combined the best elements of two competing technological initiatives to create InfiniBand, an
industry standard that has been adopted with confidence. Solving a great number of
obstacles that data centers were facing (scalability, reliability, manageability), InfiniBand
enabled the introduction of data clusters, an invaluable next step to data center construction.
In effect, InfiniBand is a fabric-based, switched network that allows devices such as servers,
storage and I/O to communicate at very high speeds. Until the advent of InfiniBand,
communication devices had to wait in line to send their information through one shared bus.
The ten-year-old architecture had reached its limits and did not have enough bandwidth
available to meet the rising demands of the information load.
InfiniBand architecture is based upon a very different concept. Offering high-speed
interprocessor communication and memory sharing, it enables you to build server clusters
with performance comparable to that of large servers at a fraction of the price. Instead of one
bus through which every device communicates, InfiniBand architecture offers a network fabric
that incorporates numerous switches and I/O Gateway modules, allowing devices to
communicate simultaneously. Speed is no longer restricted by the shortcomings of the
infrastructure. InfiniBand operates at 2.5Gbps (1X), 10Gbps (SDR), 20Gbps (DDR), and
40Gbps (QDR).
InfiniBand architecture is modular, highly scalable (it allows for virtually unlimited network
expansion) and reduces the workload of the operating system kernel and the CPU, freeing
their power to run applications. Offering advanced fault isolation controls, nonexistent in
previous protocols, InfiniBand provides a high level of fault tolerance. Moreover, most
importantly, because the InfiniBand system is modular, processing power based on
commodity servers can be added as needed.

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InfiniBand System Elements
The following are the InfiniBand system elements:
HCA (Host Channel Adapter), an adapter or silicon chip residing on the host
motherboard providing the host side functionality and advanced reliable message
passing capabilities.
InfiniBand Protocol Stack, the software required by the operating system on the
server to recognize the HCA. Includes additional Upper Layer Protocols (ULPs) that are
used by applications to communicate over the InfiniBand network.
Switch, connecting all the nodes in a switched point-to-point manner.
Fabric Management, used to discover, bring up and manage all InfiniBand-based
elements including switches and HCAs.
Gateway Modules, providing connectivity to other network fabrics including InfiniBand,
Ethernet and Fibre Channel.
Storage (native and/or Fibre Channel access)
Device Management is located on Voltaire Switches and enables users to configure
and manage the device.
InfiniBand provides a reliable, low latency interconnect (with typical switch latency of 100nS)
with fault-tolerance mechanisms (Automatic Path Migration), physical multiplexing (Virtual
Lanes), physical link aggregation (1X and 4X) and security/partitioning.
The InfiniBand fabric provides central management and configuration controlling discovery,
failures and resource allocation.
1.2 Scaling-Out Data Centers with QDR
Faster servers combined with high performance storage and applications that use
increasingly complex models are causing data bandwidth requirements to spiral upward. As
servers are deployed with next generation processors and server busses, high-performance
computing environments - in industries such as energy, bioscience, financial services,
government and academic research - will need every last bit of bandwidth delivered with
Voltaire’s new fourth generation Grid Director 4036 smart switches. As clusters grow in size
and complexity, efficient routing, and advanced management tools become mandatory for
quick fabric bring-up and minimal fabric down-time.
Voltaire’s fourth generation InfiniBand switches add many new smart capabilities to meet the
needs of next generation data centers. Smart switches are designed to fit easily into the
modern data center’s infrastructure with an optimized form factor.

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1.3 4036 System Overview
The Voltaire Grid Director 4036 is a high performance, low latency and fully non-blocking
InfiniBand switch for high performance clusters. Delivering 2.88 Tbps of non-blocking
bandwidth with less than 100 nanoseconds of port-to-port latency, I/O bottlenecks are
removed making applications operate at maximum efficiency. The Voltaire Grid Director 4036
has thirty-six 40Gbps ports that use the new smaller and intelligent QSFP connector in a 1U
chassis that is only 15” deep. The efficient Grid Director 4036’s smart design makes it easy to
build clusters that can scale-out to thousands of nodes.
The Voltaire Grid Director 4036 also comes with new smart capabilities:
•The Grid Director 4036 includes smart device management that provides a simple
interface for deploying, troubleshooting, maintaining and upgrading the switch. With a
simple to use CLI interface, routine tasks such as monitoring the switches operation or
upgrading software and firmware are made simple.
•With the increased 40Gbps speeds comes faster signaling rates. Voltaire’s smart switch
design leverages advances in cabling technology in concert with the Grid Director 4036’s
advanced port and signal optimization capabilities to determine the optimal settings for
the connected QSFP cable. This makes the selection of cables more flexible and
provides for simpler and faster cluster deployments without errors caused by degraded
signal integrity.
•The Voltaire Grid Director 4036 comes with an onboard subnet manager, enabling
simple, out-of-the-box fabric bring up, for small to medium clusters. Furthermore, the
Grid Director 4036 can be coupled with Voltaire’s Unified Fabric Manager (UFM), which
automatically discovers, virtualizes, monitors and optimizes the fabric infrastructure and
accelerates the active applications. UFM provides fast fabric bring-up by implementing
leading-edge routing algorithms that maximize the use of available fabric bandwidth and
enable the creation of scale-out clusters from tens to thousands of nodes.
•Applications require fabrics to provide reliable bandwidth and latency that can scale to
support thousands of nodes. Voltaire fabric optimization includes advanced congestion
management capabilities for detecting congestion with advanced multi-path and adaptive
routing capabilities to prevent degraded application performance.
1.4 2036 System Overview
The Voltaire Grid Director 2036 is a high performance, low latency and fully non-blocking
InfiniBand switch for high performance clusters. Delivering 1.44 Tbps of non-blocking
bandwidth with less than 100 nanoseconds of port-to-port latency, I/O bottlenecks are
removed making applications operate at maximum efficiency. The Voltaire Grid Director 2036
has thirty-six 20Gbps ports that use the new smaller and intelligent QSFP connector in a 1U
chassis that is only 15” deep. The efficient Grid Director 2036’s smart design makes it easy to
build clusters that can scale-out to thousands of nodes.

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1.5 4036/2036 Functional Block Diagram
Figure 1-1 below shows the 4036/2036 functional block diagram.
Figure 1-1. Voltaire 4036/2036 Grid Director Functional Diagram
1.6 Voltaire Switch Management
Management of Voltaire switch models is based on Voltaire's Grid Interconnect Management
Software. The Voltaire Device management software is a powerful and comprehensive
application that simplifies the management and proactively maximizes the performance and
availability of InfiniBand enabled servers, networks, and storage grid environments.
The Voltaire Device Manager provides an embedded management functionality running
under an InfiniBand switching platform.
The Subnet Manager automatically discovers the fabric topology, configures the hosts, and
switches for ease of operation.
Voltaire switches can also be managed with existing management systems using standard
protocols like InfiniBand subnet management. The system collects performance statistics and
environmental monitoring data.

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In-band management is derived from the InfiniBand network. In addition, the Fabric can be
managed in-band or out-of-band. Out-of-band management is performed by the means of the
fast Ethernet or RS-232 (console) interface.
Out-of-band management is performed by the means of the Ethernet or RS-232 (console)
interface.
1.6.1 4036/2036 Grid Director Out-of-Band Ethernet/IB
Management
The 4036/2036 out-of-band management is performed by the means of the Ethernet or
RS-232 (console) interfaces.
Out-of-Band management is defined as managing the network through the Ethernet port of
the 4036/2036. When using out-of-band management, external user applications can be
connected directly through a network through the local Ethernet subnet in order to manage
the Switch.
1.6.2 Management Interfaces
Voltaire switches have the following management interfaces:
The Fast interface (10/100 Ethernet) provides an interface to the CLI via a Telnet or an
SSH session as well as an interface to. The Fast interface also provides the interface to
a remote server for downloading new switch software versions and for uploading backup
files. Remote configuration settings are made using either the CLI.
The Serial interface (RS-232) provides an interface to the CLI. (Out of band interface)
►Refer to Chapter 3 for a full detail on how to setup your system.

2
2
Chapter 2. CLI Overview
In This Chapter:
This chapter introduces the CLI, which provides commands to perform all necessary
management functions.
It includes information on the following topics:
2.1 Interfaces for CLI Connection ..................................................................................... 2-2
2.2 Telnet/SSH Client Settings.......................................................................................... 2-2
2.3 CLI
Usage Tips............................................................................................................ 2-3
2.4 Keyboard Usage in CLI Operation .............................................................................. 2-3
2.5 CLI
Command Prompt................................................................................................. 2-5
2.6 CLI
Command Structure..............................................................................................2-6
2.7 CLI Case Sensitivity .................................................................................................... 2-7
2.8 Built-in Test ................................................................................................................. 2-7
►Refer to the CLI Reference Section (Part 2) for a comprehensive list of menus and
commands.

Chapter 2 CLI Overview
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2.1 Interfaces for CLI Connection
A CLI session can be established via a serial RS-232 connection to the switch, or by
connecting a Telnet or an SSH session to the management interface.
►Refer to First-Time Configuration, on page 3-2 for further information.
2.2 Telnet/SSH Client Settings
When using a Telnet/SSH client to connect, run, and configure the Voltaire products, make
sure to check the Telnet New Line Settings to avoid CR/LF problems. Each client has its
own location for those settings.
For example, when using Putty to run a Voltaire product, enter the Putty configuration window
and under Connection/Telnet, make sure that the Return key sends Telnet New Line
instead of ^M Checkbox is disabled, as shown below.
Figure 2-1. Telnet/SSH Client Settings – Example (using Putty)

Chapter 2 CLI Overview
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2.3 CLI Usage Tips
Automatic command completion
Use the Tab key to complete commands as follows: type in the first one or few letters of
the command and then key in Tab; the CLI completes the current word, allowing you to
continue entering the command.
Use the Question Mark (?) key to list all of the options available at that point in the
command line.
Commands and keywords can be truncated at any point after they are unique.
The CLI is case sensitive. All commands and keywords must be entered in lower case;
user-defined strings can appear in any case (including mixed case). Case for user-
defined strings is preserved in the configuration.
2.4 Keyboard Usage in CLI Operation
The CLI supports the use of the following special keys for the described functions:
Table 2-1. CLI Key Functions
Key Function
? The question mark (?) key lists all of the options available at that point in
the command line, along with a brief description of the command.
If you enter a question mark (?) after a partial or complete command (use
a space after the mark), the system provides a list of commands that begin
with that string and relevant usage.
Tab Completes a partial command name entry. When you enter a set of
characters that match the beginning of a command name and press the
Tab key, the system completes the command name. If you enter a set of
characters that could indicate more than one command, the system lists all
available options.
Backspace Erases the character to the left of the cursor.
Return/Enter At the command line, pressing the Return key performs the function of
processing a command. At the prompt on a terminal screen, pressing the
Return key scrolls down a line.

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Key Function
Left Arrow Moves the cursor one character to the left. When you enter a command
that extends beyond a single line, you can press the Left Arrow key
repeatedly to scroll back toward the system prompt and verify the
beginning of the command entry.
Right Arrow Moves the cursor one character to the right.
Up Arrow or
Ctrl-P
Recalls commands in the history buffer, beginning with the most recent
command. Repeat the key sequence to recall successively older
commands.
Down Arrow
or Ctrl-N
Return to more recent commands in the history buffer after recalling
commands with the Up Arrow or Ctrl-P. Repeat the key sequence to recall
successively more recent commands.
Ctrl-A Moves the cursor to the beginning of the line (Note: this button combo
does not work when the session is established with Minicom).
Ctrl-B Moves the cursor back one character.
Ctrl-D Deletes the character at the cursor.
Ctrl-E Moves the cursor to the end of the command line.
Ctrl-F Moves the cursor forward one character.
Ctrl-K Deletes all characters from the cursor to the end of the command line.
Ctrl-T Transposes the character to the left of the cursor with the character
located at the cursor.
Ctrl-W Deletes the word to the left of the cursor.
Ctrl-Y Recalls the most recent entry in the delete buffer. The delete buffer
contains the last ten items you have deleted or cut. Ctrl-Y can be used in
conjunction with Esc Y.
Esc B Moves the cursor from the middle of the word to the beginning.
Esc C Capitalizes the character on which the cursor is pointing and moves it to
the end of the word.
Esc D Deletes from the cursor to the end of the word.