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DGX-2 SYSTEM
User Manual
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Nvidia DGX-2 SYSTEM User Manual

User Guide
DGX-2 SYSTEM
DU-09130-001_v03 | November 2018
TABLE OF CONTENTS
Introduction to the NVIDIA DGX-2 System .............................. 5
About this Document ................................................................................. 6
Hardware Overview .................................................................................. 6
Network Ports ....................................................................................... 11
Recommended Ports to Use for External Storage .............................................. 12
DGX OS Software ................................................................................... 13
Additional Documentation ......................................................................... 13
Customer Support .................................................................................. 14
Connecting to the DGX-2 Console ......................................... 15
Direct Connection ................................................................................... 16
Remote Connection through the BMC ........................................................... 17
SSH Connection ..................................................................................... 19
Setting Up the DGX-2 System ............................................... 20
Quick Start Instructions ...................................................... 24
Registration .......................................................................................... 24
Installation and Configuration..................................................................... 25
Obtaining an NVIDIA GPU Cloud Account ....................................................... 25
Getting Your NGC API Key and Selecting Container Tags for the Verification Examples . 25
Verifying Basic Functionality....................................................................... 26
Network Configuration ........................................................ 28
BMC Security ........................................................................................ 28
Configuring Network Proxies ...................................................................... 28
Configuring Docker IP Addresses ................................................................. 29
Opening Ports ....................................................................................... 31
Connectivity Requirements ........................................................................ 31
Configuring Static IP Address for the BMC ...................................................... 32
Configuring Static IP Addresses for the Network Ports ........................................ 36
Switching Between InfiniBand and Ethernet .................................................... 38
Configuring Storage – NFS Mount and Cache .......................... 44
Restoring the DGX-2 Software Image .................................... 46
Obtaining the DGX-2 Software ISO Image and Checksum File .............................. 47
Re-Imaging the System Remotely ................................................................ 47
Creating a Bootable Installation Medium ........................................................ 48
Re-Imaging the System From a USB Flash Drive............................................... 51
Retaining the RAID Partition While Installing the OS .......................................... 52
Updating the DGX OS Software ............................................. 54
Connectivity Requirements For Software Updates ............................................. 54
Update Instructions ................................................................................ 55
Updating Firmware ............................................................. 56
General Firmware Update Guidelines ............................................................ 56
Obtaining the Firmware Update Container ...................................................... 57
Querying the Firmware Manifest ................................................................. 57
Querying the Currently Installed Firmware Versions .......................................... 57
Updating the Firmware ............................................................................. 58
Additional Options .................................................................................. 60
Command Summary ................................................................................ 61
Removing the Container ........................................................................... 61
Using the BMC ................................................................ 62
Connecting to the BMC .......................................................................... 62
Overview of BMC Controls ....................................................................... 63
Using DGX-2 System in KVM Mode ...................................... 66
Overview ........................................................................................... 66
Preliminary Setup - Converting the DGX-2 System to a DGX-2 KVM Host ............... 69
Launching a Guest GPU VM Instance .......................................................... 70
Stopping, Restarting, and Deleting a Guest GPU VM ........................................ 72
Connecting to Your Guest GPU VM ............................................................. 74
Managing Images ................................................................................. 76
Using the Guest OS Drives and Data Drives .................................................. 77
Updating the Software ........................................................................... 80
Supplemental Information ....................................................................... 82
Appendix A. Installing Software on Air-gapped DGX-2 Systems ................ 86
A.1. Installing NVIDIA DGX-2 Software ............................................................. 86
A.2. Re-Imaging the System .......................................................................... 87
A.3. Creating a Local Mirror of the NVIDIA and Canonical Repositories ........................ 87
A.4. Installing Docker Containers .................................................................... 88
Appendix B. Safety ............................................................................ 89
B.1. Safety Information ............................................................................... 89
B.2. Safety Warnings and Cautions .................................................................. 90
B.3. B.4. Site B.5.
B.6. Electrical Precautions ............................................................................. 92
B.7. System Access Warnings ........................................................................ 93
B.8. Rack Mount Warnings ............................................................................ 94
B.9. Electrostatic Discharge (ESD) .................................................................. 95
B.10. Other
Intended Application
Selection
Equipment Handling Practices
..................................................................................... 91
Hazards
Uses ..................................................................... 91
................................................................................. 95
................................................................ 91
Appendix C. Compliance ..................................................................... 97
C.1. United States ...................................................................................... 97
C.2. United States / Canada .......................................................................... 98
C.3. Canada ............................................................................................. 98
C.4. CE ................................................................................................... 98
C.5. Japan ............................................................................................... 99
C.6. Australia and New Zealand ..................................................................... 101
C.7. China .............................................................................................. 102
C.8. Israel .............................................................................................. 103
C.9. Russia/Kazakhstan/Belarus ..................................................................... 103
C.10. Vietnam ........................................................................................ 103
C.11. South Korea ................................................................................... 104
C.12. Taiwan ......................................................................................... 107
DGX-2 System User Guide iv
INTRODUCTION TO THE NVIDIA DGX-2 SYSTEM
The NVIDIA® DGX-2™ System is the world’s first two-petaFLOPS system that engages 16 fully interconnected GPUs for accelerated deep learning performance. The DGX-2 System is powered by NVIDIA® DGX™ software stack and an architecture designed for Deep Learning, and High-Performance Computing and analytics.
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Introduction to the NVIDIA DGX-2 System
ID
Component
Qty
Description
ABOUT THIS DOCUMENT
This document is for users and administrators of the DGX-2 System. It is organized as follows:
Chapters 1-4: Overview of the DGX-2 System, including basic first-time setup and
operation
Chapters 5-6: Network and storage configuration instructions.
Chapters 7-9: Software and firmware update instructions
Chapters 9: How to use the BMC
Chapter 10: How to configure and use the DGX-2 System as a Kernel Virtual Machine
host
HARDWARE OVERVIEW
1.2.1 Major Components
The following diagram shows the major components of the DGX-2 System.
1 GPU 16 NVIDIA® Tesla V100
- 2 petaFLOPS
- 512GB total GPU memory
- 81920 NVIDIA CUDA® Cores
- 10240 NVIDIA Tensor Cores
2 GPU Boards 2 Each board consists of
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Introduction to the NVIDIA DGX-2 System
8x NVIDIA® Tesla V100
Feature
Description
Each Power Supply
ID Component Qty Description
6x NVSwitches 512GB total HBM2 memory
3 NVSwitch 12 2.4 TB/s bi-section bandwidth
4 Network (cluster) 8 EDR Infiniband or 100 GbE
(1600 Gb/s total bi-directional bandwidth)
5 CPU 2 Dual Intel Xeon Platinum 8168, 2.7 GHz, 24-cores
6 System Memory 1.5 TB
7 Storage (RAID 0) (Cache) 8 3.84TB each (30TB total) NVMe SSDs
8 Network (storage) 2 High speed Ethernet 10/25/40/100 GbE
Can be expanded with the purchase and installation of a second dual-port network adapter.
1.2.2 Other Components not in Exploded View
Component Qty Description
Power Supply 6 3000 W each
Storage (RAID 1) (OS)
2 960GB NVMe SSDs
1.2.3 Mechanical Specifications
Form Factor 10U Rackmount
Height 17.32” (440 mm)
Width 19" (482.6 mm)
Depth 31.3" (795 mm)
Gross Weight 360 lbs (163.29 kg)
1.2.4 Power Specifications
Input Specification for
200-240 volts AC
10 kW max. 3000 W @ 200-240 V,
16 A, 50-60 Hz
Comments
The DGX-2 System contains six load­balancing power supplies.
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Introduction to the NVIDIA DGX-2 System
Feature
Description
1.2.5 Environmental Specifications
Operating Temperature
Relative Humidity
Airflow
Heat Output 34122 BTU/hr
5
◦ C to 35 ◦ C (41 ◦ F to 95 ◦ F)
20% to 85% noncondensing
1000 CFM @ 35
◦
C
1.2.6 Front Panel Connections and Controls
ID Qty Description
1 4 Upper GPU tray fans
2 4 Lower GPU tray fans
3
4 2 Motherboard tray fans
5 1 Front console board:
6 1
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8 (default)
Solid State Drives. Additional SSDs available for purchase to expand to 16.
USB 3.0 (2x) VGA (1x)
Power and ID buttons:
Top: Power button and LED Press to turn the DGX-2 System on or off.
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Introduction to the NVIDIA DGX-2 System
Green steady: Power is On
ID Qty Description
Red steady: Power is Off Red blinking: Status warning/error
Bottom: ID button Press to cause an LED on the back of the unit to flash as an
identifier during servicing.
1.2.7 Rear Panel Connections and Controls
With EMI Shield Installed
ID Qty Description
1 1 EMI shield
2 6 Power supplies and connectors
3 1 I/O tray
4 1 Motherboard tray
5 2 Handles to pull power supply carrier
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With EMI Shield Removed
ID
Qty
Description
ID
Qty
Description
enp134s0f1
1 2 NVIDIA NVLink™ plane card
Introduction to the NVIDIA DGX-2 System
1.2.8 Motherboard Tray Ports and Controls
1 1 (Optional) High profile PCI card slot (for network storage)
2 2 (Default) QSFP28 network ports (for network storage)
Left side port designation: enp134s0f0 Right side port designation:
3 1 RJ45 network port (for in-band management)
4 2 USB 3.0 ports
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ID Qty Description
Ports
5 1 IPMI port (for out-of-band management (BMC))
6 1 VGA port
7 1 Serial port (DB-9)
8 1 System ID LED
Blinks blue when ID button is pressed from the front of the unit as an aid in identifying the unit needing servicing
9 1 BMC reset button
10 1 Power and BMC heartbeat LED
On/Off – BMC is not ready Blinking – BMC is ready
NETWORK PORTS
Introduction to the NVIDIA DGX-2 System
The following figure highlights the available network ports and their purpose.
ID Connectivity Uses
BMC (remote
1
management and monitoring)
Motherboard
2
RJ45
3 ConnectX-5 (LP)
Ethernet mode
Out-of-band management
In-band management, administration
Storage (NFS) System
communication
Number of
1
1
2 (Left):
enp134s0f0
Port Type Cable Type
100/1000
RJ45
RJ45
QSFP28
Ethernet Cat5E/6 Ethernet
100/1000 Ethernet
Cat5E/6 Ethernet
100 GbE (QSFP28)
10/25/40 GbE
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Introduction to the NVIDIA DGX-2 System
Ports
(Right):
enp134s0f1
(QSFP28 to SFP28
Ports
Type
enp134s0f1
ID Connectivity Uses
4 ConnectX-5
InfiniBand mode Ethernet mode
Clustering Storage
Number of
8
Port Type Cable Type
QSFP28
or SFP+)
InfiniBand EDR 100
Ethernet 100GbE
RECOMMENDED PORTS TO USE FOR EXTERNAL
STORAGE
For clarity, the following figure reiterates the recommended ports to use for external storage. In most configurations, the storage ports (ID 1 below) should be used for connecting to high-speed NAS storage, while the cluster ports (ID 2 below) should be used for communication between nodes.
ID Connectivity Uses Number of
1 ConnectX-5 (LP) Storage (NFS) 2
2 ConnectX-5
InfiniBand mode Ethernet mode
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Port
(Left): enp134s0f0
(Right):
Cluster
12
8
QSFP28 1/10/25/40/100 GbE
QSFP28
Cable Type
EDR InfiniBand or 100 GbE
Introduction to the NVIDIA DGX-2 System
DGX OS SOFTWARE
The DGX-2 System comes installed with a base OS incorporating
An Ubuntu server distribution with supporting packages
The NVIDIA driver
Docker CE
NVIDIA Container Runtime for Docker
The following health monitoring software
● NVIDIA System Management (NVSM)
Provides active health monitoring and system alerts for NVIDIA DGX nodes in a data center. It also provides simple commands for checking the health of the DGX-2 SYSTEM from the command line.
● Data Center GPU Management (DCGM)
This software enables node-wide administration of GPUs, and can be used for cluster and data-center level management.
ADDITIONAL DOCUMENTATION
Note: Some of the documentation listed below are not available at the time of
publication. See https://docs.nvidia.com/dgx/ for the latest status.
DGX-2 System Service Manual
Instructions for servicing the DGX-2 System, including how to replace select components.
DGX OS Server Release Notes
Provides software component versions as well as a list of changes and known issues in the installed OS software.
NGC Container Registry for DGX
How to access the NGC container registry for using containerized deep learning GPU-accelerated applications on your DGX-2 System.
NVSM Software User Guide
Contains instructions for using the NVIDIA System Management software.
DCGM Software User Guide
Contains instructions for using the Data Center GPU Management software.
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Introduction to the NVIDIA DGX-2 System
CUSTOMER SUPPORT
Contact NVIDIA Enterprise Support for assistance in reporting, troubleshooting, or diagnosing problems with your Support for assistance in installing or moving the DGX-2 System. You can contact NVIDIA Enterprise Support in the following ways.
1.7.1 NVIDIA Enterprise Support Portal
The best way to file an incident is to log on to the NVIDIA Enterprise Support portal.
1.7.2 NVIDIA Enterprise Support Email
You can also send an email to enterprisesupport@nvidia.com.
DGX-2 System. Also contact NVIDIA Enterprise
1.7.3 NVIDIA Enterprise Support - Local Time Zone Phone Numbers
Visit the NVIDIA Enterprise Support page.
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CONNECTING TO THE DGX-2 CONSOLE
Connect to the DGX-2 console using either a direct connection, a remote connection through the BMC, or through an SSH connection.
CAUTION: Connect directly to the DGX-2 console if the DGX-2 System is connected
to a 172.17.xx.xx subnet.
DGX OS Server software installs Docker CE which uses the 172.17.xx.xx subnet by default for Docker containers. If the DGX-2 System is on the same subnet, you will not be able to establish a network connection to the DGX-2 System.
Refer to the section Configuring Docker IP Addresses for instructions on how to change the default Docker network settings.
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Connecting to the DGX-2 Console
DIRECT CONNECTION
At either the front or the back of the DGX-2 System, connect a display to the VGA connector, and a keyboard to any of the USB ports.
DGX-2 Server Front
DGX-2 Server Back
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Connecting to the DGX-2 Console
REMOTE CONNECTION THROUGH THE BMC
See the section Configuring Static IP Address for the BMC if you need to configure a static IP address for the BMC.
This method requires that you have the BMC login credentials. These credentials depend on the following conditions:
Prior to first time boot: The default credentials are
Username: admin
Password: admin
After first boot setup: The administrative user username that was set up during the
initial boot is used for both the BMC username and BMC password.
Username: <administrator-username>
Password: <administrator-username>
After first boot setup with changed password: The BMC password can be changed
from “<system-username>”, in which case the credentials are
Username: <administrator-username>
Password: <new-bmc-password>
1. Make sure you have connected the BMC port on the DGX-2 System to your LAN.
2. Open a browser within your LAN and go to:
https://<ipmi-ip-address>/
Make sure popups are allowed for the BMC address.
3. Log in.
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4. From the left-side navigation menu, click Remote Control.
Connecting to the DGX-2 Console
The Remote Control page allows you to open a virtual Keyboard/Video/Mouse (KVM) on the DGX-2 System, as if you were using a physical monitor and keyboard connected to the front of the system.
5. Click Launch KVM.
The DGX-2 console appears in your browser.
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Connecting to the DGX-2 Console
SSH CONNECTION
You can also establish an SSH connection to the DGX-2 System through the network port. See the section Network Ports
Configuring Static IP Addresses for the Network Ports if you need to configure a static
IP address.
to identify the port to use, and the section
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SETTING UP THE DGX-2 SYSTEM
While NVIDIA service personnel will install the DGX-2 System at the site and perform the first boot setup, the first boot setup instructions are provided here for reference and to support any re-imaging of the server.
These instructions describe the setup process that occurs the first time the DGX-2 System is powered on after delivery or after the server is re-imaged.
Be prepared to accept all End User License Agreements (EULAs) and to set up your username and password.
1. Connect to the DGX-2 console as explained in Connecting to the DGX-2 Console.
2. Power on the DGX-2 System.
● Using the physical power button
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Setting Up the DGX-2 System
● Using the Remote BMC
The system will take a few minutes to boot.
You are presented with end user license agreements (EULAs) for the NVIDIA software.
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Setting Up the DGX-2 System
!
3. Accept all EULAs to proceed with the installation.
The system boots and you are prompted to configure the DGX-2 software.
4. Perform the steps to configure the DGX-2 software.
● Select your language and location.
● Create a user account with your name, username, and password.
You will need these credentials to log in to the DGX-2 System as well as to log in to the BMC remotely. When logging in to the BMC, enter your username for both the User ID as well as the password. Be sure to create a unique BMC password at the first opportunity.
CAUTION: Once you create your login credentials, the default admin/admin login will no longer work.
Note: The BMC software will not accept "sysadmin" for a user name. If you create this
user name for the system log in, "sysadmin" will not be available for logging in to the BMC.
● Choose a primary network interface for the DGX-2 System; for example, enp6s0.
This should typically be the interface that you will use for subsequent system configuration or in-band management.
Note: After you select the primary network interface, the system attempts to configure
the interface for DHCP and then asks you to enter a hostname for the system. If DHCP is not available, you will have the option to configure the network manually. If you need to configure a static IP address on a network interface connected to a DHCP network, select Cancel at the Network configuration – Please enter the
hostname for the system screen. The system will then present a screen with the
option to configure the network manually.
● Choose a host name for the DGX-2 System.
After completing the setup process, the DGX-2 System reboots automatically and then presents the login prompt.
5. Update the software to ensure you are running the latest version.
Updating the software ensures your DGX-2 System contains important updates, including security updates. The Ubuntu Security Notice site (https://usn.ubuntu.com/ lists known Common Vulnerabilities and Exposures (CVEs), including those that can be resolved by updating the DGX OS software.
)
a) Run the package manager.
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$ sudo apt update
b) Upgrade to the latest version.
$ sudo apt full-upgrade
Note: RAID 1 Rebuild in Progress - When the system is booted after restoring the
image, software RAID begins the process of rebuilding the RAID 1 array - creating a mirror of (or resynchronizing) the drive containing the software. System performance may be affected during the RAID 1 rebuild process, which can take an hour to complete.
During this time, the command “nvsm show health” will report a warning that the RAID volume is resyncing.
You can check the status of the RAID 1 rebuild process using “sudo mdadm -D /dev/md0”.
Setting Up the DGX-2 System
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QUICK START INSTRUCTIONS
This chapter provides basic requirements and instructions for using the DGX-2 System, including how to perform a preliminary health check and how to prepare for running containers. Be sure to visit the DGX documentation website at
https://docs.nvidia.com/dgx/
for additional product documentation.
REGISTRATION
Be sure to register your DGX-2 System with NVIDIA as soon as you receive your purchase confirmation e-mail. Registration enables your hardware warranty and allows you to set up an NVIDIA GPU Cloud for DGX account.
To register your DGX-2 System, you will need information provided in your purchase confirmation e-mail. If you do not have the information, send an e-mail to NVIDIA Enterprise Support at enterprisesupport@nvidia.com.
1. From a browser, go to the NVIDIA DGX Product Registration page
(https://www.nvidia.com/object/dgx-product-registration
2. Enter all required information and then click SUBMIT to complete the registration
process and receive all warranty entitlements and DGX-2 support services entitlements.
).
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Quick Start Instructions
INSTALLATION AND CONFIGURATION
Your DGX-2 System will be installed by NVIDIA service personnel or an authorized installation partner.
Before installation, make sure you have completed the Site Survey and have given all relevant site information to your Installation Partner.
OBTAINING AN NVIDIA GPU CLOUD ACCOUNT
NVIDIA GPU Cloud (NGC) provides simple access to GPU-optimized software tools for deep learning and high-performance computing (HPC) that take full advantage of NVIDIA GPUs. An NGC account grants you access to these tools as well as the ability to set up a private registry to manage your customized tools.
Work with NVIDIA Enterprise Support to set up an NGC enterprise account if you are the organization administrator for your DGX-2 purchase. See the NGC Container Registry for DGX User Guide (
guide/) for detailed instructions on getting an NGC enterprise account.
https://docs.nvidia.com/dgx/ngc-registry-for-dgx-user-
GETTING YOUR NGC API KEY AND SELECTING
CONTAINER TAGS FOR THE VERIFICATION EXAMPLES
Before using the DGX-2 System to run containers from the NGC container registry, you must visit the NGC web site to obtain your NGC API Key and to determine which containers are available to run.
4.4.1 Getting Your NGC API Key
Your NGC API Key authenticates your access to the NGC container registry with its NVIDIA tuned, tested, certified, and maintained containers for the top deep learning frameworks.
You only need to generate an API Key once. Should you lose your API Key, you can generate a new one from the NGC website. When you generate a new API Key, the old one is invalidated.
Perform the following instructions from any system with internet access and a browser.
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Quick Start Instructions
1. Log in to the NGC website (https://ngc.nvidia.com).
2. Click Get API Key from the Registry page.
3. Click Generate API Key from the Configuration->API Key page.
4. Click Confirm at the Generate a New API Key dialog.
Your NGC API Key is displayed at the bottom of the Configuration->API Key page with examples of how to use it.
NGC does not save your key, so store it in a secure place. You can copy your API Key to the clipboard by clicking the copy icon to the right of the API key.
4.4.2 Selecting CUDA Container Tags for Verification Examples
While you are logged in to the web site, select a CUDA container tag to use for the verification procedure in the next section.
1. Select Registry from the left side menu.
2. Select a CUDA container tag.
c) Click the cuda repository (under the nvidia registry space).
d) In the Tag section, scroll down to find the latest ‘-runtime’ version. For example,
‘10.0-runtime’.
Note this tag as you will need to specify it when running the CUDA container in the next section.
VERIFYING BASIC FUNCTIONALITY
This section walks you through the steps of performing a health check on the DGX-2 System, and verifying the Docker and NVIDIA driver installation.
1. Establish an SSH connection to the DGX-2 System.
2. Run a basic system check.
sudo nvsm show health
Verify that the output summary shows that all checks are Healthy and that the overall system status is Healthy.
3. Verify that Docker is installed by viewing the installed Docker version.
sudo docker --version
This should return the version as “Docker version 18.03-ce”, where the actual version may differ depending on the specific release of the DGX OS Server software.
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Quick Start Instructions
4. Verify connection to the NVIDIA repository and that the NVIDIA Driver is installed.
sudo docker container run --runtime=nvidia --rm nvcr.io/nvidia/cuda:<cuda-tag-obtained-from-previous- section> nvidia-smi
Docker pulls the nvidia/cuda container image layer by layer, then runs nvidia-smi.
When completed, the output should show the NVIDIA Driver version and a description of each installed GPU.
See the NVIDIA Containers and Deep Learning Frameworks User Guide at
https://docs.nvidia.com/deeplearning/dgx/user-guide/index.html
for further
instructions, including an example of logging into the NGC container registry and launching a deep learning container.
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NETWORK CONFIGURATION
This chapter describes key network considerations and instructions for the DGX-2 System.
BMC SECURITY
NVIDIA recommends that customers follow best security practices for BMC management (IPMI port). These include, but are not limited to, such measures as:
Restricting the DGX-2 IPMI port to an isolated, dedicated, management network
Using a separate, firewalled subnet
Configuring a separate VLAN for BMC traffic if a dedicated network is not available
CONFIGURING NETWORK PROXIES
If your network requires use of a proxy server, you will need to set up configuration files to ensure the DGX-2 System communicates through the proxy.
5.2.1 For the OS and Most Applications
Edit the file /etc/environment and add the following proxy addresses to the file, below the PATH line.
http_proxy="http://<username>:<password>@<host>:<port>/" ftp_proxy="ftp://<username>:<password>@<host>:<port>/";
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Network Configuration
https_proxy="https://<username>:<password>@<host>:<port>/"; no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com" HTTP_PROXY="http://<username>:<password>@<host>:<port>/" FTP_PROXY="ftp://<username>:<password>@<host>:<port>/"; HTTPS_PROXY="https://<username>:<password>@<host>:<port>/"; NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com"
Where username and password are optional.
Example:
http_proxy="http://myproxy.server.com:8080/" ftp_proxy="ftp://myproxy.server.com:8080/"; https_proxy="https://myproxy.server.com:8080/";
5.2.2 For apt
Edit (or create) a proxy config file /etc/apt/apt.conf.d/myproxy and include the following lines
Acquire::http::proxy "http://<username>:<password>@<host>:<port>/"; Acquire::ftp::proxy "ftp://<username>:<password>@<host>:<port>/"; Acquire::https::proxy "https://<username>:<password>@<host>:<port>/";
Where username and password are optional.
Example:
Acquire::http::proxy "http://myproxy.server.com:8080/"; Acquire::ftp::proxy "ftp://myproxy.server.com:8080>/"; Acquire::https::proxy "https://myproxy.server.com:8080/";
5.2.3 For Docker
To ensure that Docker can access the NGC container registry through a proxy, Docker uses environment variables. For best practice recommendations on configuring proxy environment variables for Docker, see https://docs.docker.com/engine/admin/systemd/#http-proxy.
CONFIGURING DOCKER IP ADDRESSES
To ensure that the DGX-2 System can access the network interfaces for Docker containers, Docker should be configured to use a subnet distinct from other network resources used by the DGX-2 System.
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Network Configuration
By default, Docker uses the 172.17.0.0/16 subnet. Consult your network administrator to find out which IP addresses are used by your network.
If your network does not
conflict with the default Docker IP address range, then no changes are needed and you can skip this section.
However, if your network uses the addresses within this range for the DGX-2 System, you should change the default Docker network addresses.
You can change the default Docker network addresses by either modifying
/etc/docker/daemon.json file or modifying the /etc/systemd/
the
system/docker.service.d/docker-override.conf
file. These instructions provide
an example of modifying the/etc/systemd/system/docker.service.d/docker-
override.conf to override the default Docker network addresses.
1. Open the docker-override.conf file for editing.
$ sudo vi /etc/systemd/system/docker.service.d/docker-override.conf
[Service] ExecStart= ExecStart=/usr/bin/dockerd -H fd:// -s overlay2 LimitMEMLOCK=infinity LimitSTACK=67108864
2. Make the changes indicated in bold below, setting the correct bridge IP address and
IP address ranges for your network. Consult your IT administrator for the correct addresses.
[Service] ExecStart= ExecStart=/usr/bin/dockerd -H fd:// -s overlay2 --bip=192.168.127.1/24
--fixed-cidr=192.168.127.128/25
LimitMEMLOCK=infinity LimitSTACK=67108864
Save and close the /etc/systemd/system/docker.service.d/docker­override.conf file when done.
3. Reload the systemctl daemon.
$ sudo systemctl daemon-reload
4. Restart Docker.
$ sudo systemctl restart docker
DGX-2 System User Guide
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