H3C UniServer R6900 G3 User manual

Brand: H3C

Model: UniServer R6900 G3

Type: User manual

H3C UniServer R6900 G3 Server

User Guide

New H3C Technologies Co., Ltd.

http://www.h3c.com

Document version: 6W101-20191010

No part of this manual may be reproduced or transmitted in any form or by any means without prior written

consent of New H3C Technologies Co., Ltd.

Trademarks

Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this

document are the property of their respective owners.

Notice

The information in this document is subject to change without notice. All contents in this document, including

statements, information, and recommendations, are believed to be accurate, but they are presented without

warranty of any kind, express or implied. H3C shall not be liable for technical or editorial errors or omissions

contained herein.

Environmental protection

This product has been designed to comply with the environmental protection requirements. The storage, use,

and disposal of this product must meet the applicable national laws and regulations.

Preface

This preface includes the following topics about the documentation:

• Audience.

• Conventions.

• Documentation feedback.

Audience

This documentation is intended for:

• Network planners.

• Field technical support and servicing engineers.

• Server administrators working with the R6900 G3 Server.

Conventions

The following information describes the conventions used in the documentation.

Command conventions

Convention Description

Boldface Bold

text represents commands and keywords that you enter literally as shown.

Italic

Italic text represents arguments that you replace with actual values.

[ ] Square brackets enclose syntax choices (keywords or arguments) that are optional.

{ x | y | ... }

Braces enclose a set of required syntax choices separated by vertical bars, from which

you select one.

[ x | y | ... ]

Square brackets enclose a set of optional syntax choices separated by vertical bars,

from which you select one or none.

{ x | y | ... } *

Asterisk marked braces enclose a set of required syntax choices separated by vertical

bars, from which you select a minimum of one.

[ x | y | ... ] *

Asterisk marked square brackets enclose optional syntax choices separated by vertical

bars, from which you select one choice, multiple choices, or none.

&<1-n>

The argument or keyword and argument combination before the ampersand (&) sign

can be entered 1 to n times.

# A line that starts with a pound (#) sign is comments.

GUI conventions

Convention Description

Boldface

Window names, button names, field names, and menu items are in Boldface. For

example, the

New User

window opens; click

Multi-level menus are separated by angle brackets. For example,

File

Create

Folder

Symbols

Convention Description

WARNING!

An alert that calls attention to important information that if not understood or followed

can result in personal injury.

CAUTION:

An alert that calls attention to important information that if not understood or followed

can result in data loss, data corruption, or damage to hardware or software.

IMPORTANT:

An alert that calls attention to essential information.

NOTE:

An alert that contains additional or supplementary information.

TIP:

An alert that provides helpful information.

Network topology icons

Convention Description

Represents a generic network device, such as a router, switch, or firewall.

Represents a routing-capable device, such as a router or Layer 3 switch.

Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that

supports Layer 2 forwarding and other Layer 2 features.

Represents an access controller, a unified wired-WLAN module, or the access

controller engine on a unified wired-WLAN switch.

Represents an access point.

Represents a wireless terminator unit.

Represents a wireless terminator.

Represents a mesh access point.

Represents omnidirectional signals.

Represents directional signals.

Represents a security product, such as a firewall, UTM, multiservice security

gateway, or load balancing device.

Represents a security module, such as a firewall, load balancing, NetStream, SSL

VPN, IPS, or ACG module.

Examples provided in this document

Examples in this document might use devices that differ from your device in hardware model,

configuration, or software version. It is normal that the port numbers, sample output, screenshots,

and other information in the examples differ from what you have on your device.



Documentation feedback

You can e-mail your comments about product documentation to [email protected].

We appreciate your comments.

Contents

1 Safety information ······································································· 1-1

Safety sign conventions ············································································································ 1-1

Power source recommendations ································································································ 1-1

Installation safety recommendations ··························································································· 1-2

General operating safety ···································································································· 1-2

Electrical safety ················································································································ 1-2

Rack mounting recommendations ························································································ 1-2

ESD prevention ················································································································ 1-3

Cooling performance ········································································································· 1-3

Battery safety ·················································································································· 1-4

2 Preparing for installation ······························································· 2-1

Rack requirements ·················································································································· 2-1

Installation site requirements ····································································································· 2-2

Space and airflow requirements ·························································································· 2-2

Temperature, humidity, and altitude requirements ··································································· 2-3

Cleanliness requirements ··································································································· 2-3

Grounding requirements ···································································································· 2-4

Installation tools ······················································································································ 2-4

3 Installing or removing the server ···················································· 3-1

Installing the server ················································································································· 3-1

Installing the chassis rails and slide rails ················································································ 3-1

Rack-mounting the server ·································································································· 3-1

(Optional) Installing the CMA ······························································································ 3-3

Connecting external cables ······································································································· 3-3

Cabling guidelines ············································································································ 3-3

Connecting a mouse, keyboard, and monitor ·········································································· 3-3

Connecting an Ethernet cable ····························································································· 3-5

Connecting a USB device ·································································································· 3-6

Connecting the power cord ································································································· 3-7

Securing cables ··············································································································· 3-9

Removing the server from a rack ······························································································ 3-10

4 Powering on and powering off the server ········································· 4-1

Important information ··············································································································· 4-1

Powering on the server ············································································································ 4-1

Prerequisites ··················································································································· 4-1

Procedure ······················································································································· 4-1

Powering off the server ············································································································ 4-2

Guidelines ······················································································································ 4-2

Procedure ······················································································································· 4-2

5 Configuring the server ································································· 5-1

Configuration flowchart············································································································· 5-1

Powering on the server ············································································································ 5-1

Configuring basic BIOS settings ································································································· 5-2

Setting the server boot order ······························································································· 5-2

Setting the BIOS passwords ······························································································· 5-2

Configuring RAID ···················································································································· 5-2

Installing the operating system and hardware drivers ······································································ 5-2

Installing the operating system ···························································································· 5-2

Installing hardware drivers ·································································································· 5-2

Updating firmware ··················································································································· 5-3

6 Installing hardware options ··························································· 6-1

Installing the security bezel ······································································································· 6-1

Installing SAS/SATA drives ······································································································· 6-1

Installing NVMe drives ············································································································· 6-3

Installing power supplies ··········································································································· 6-4

Installing a compute module ······································································································ 6-5

Installing air baffles·················································································································· 6-7

Installing the low mid air baffle or GPU module air baffle to a compute module ······························ 6-7

Installing the GPU module air baffle to a rear riser card ···························································· 6-9

Installing riser cards and PCIe modules ····················································································· 6-11

Guidelines ···················································································································· 6-11

Installing a riser card and a PCIe module in a compute module ················································ 6-11

Installing riser cards and PCIe modules at the server rear ······················································· 6-13

Installing storage controllers and power fail safeguard modules ······················································ 6-17

Installing GPU modules ·········································································································· 6-21

Guidelines ···················································································································· 6-21

Installing a GPU module in a compute module ······································································ 6-21

Installing a GPU module to a rear riser card ········································································· 6-24

Installing Ethernet adapters ····································································································· 6-24

Guidelines ···················································································································· 6-24

Installing an mLOM Ethernet adapter ·················································································· 6-24

Installing a PCIe Ethernet adapter ······················································································ 6-26

Installing PCIe M.2 SSDs ········································································································ 6-27

Guidelines ···················································································································· 6-27

Installing a PCIe M.2 SSD in a compute module ··································································· 6-27

Installing a PCIe M.2 SSD at the server rear ········································································ 6-29

Installing SD cards ················································································································ 6-29

Installing an NVMe SSD expander module ················································································· 6-31

Installing the NVMe VROC module ··························································································· 6-32

Installing a drive backplane ····································································································· 6-32

Installing a diagnostic panel ···································································································· 6-33

Installing processors ·············································································································· 6-35

Installing DIMMs ··················································································································· 6-39

Guidelines ···················································································································· 6-40

Procedure ····················································································································· 6-43

Installing and setting up a TCM or TPM ····················································································· 6-45

Installation and setup flowchart ························································································· 6-45

Installing a TCM or TPM ·································································································· 6-45

Enabling the TCM or TPM in the BIOS ················································································ 6-47

Configuring encryption in the operating system ····································································· 6-47

7 Replacing hardware options ·························································· 7-1

Replacing the security bezel ······································································································ 7-1

Replacing a SAS/SATA drive ····································································································· 7-1

Replacing an NVMe drive ········································································································· 7-2

Replacing a compute module and its main board ··········································································· 7-3

Removing a compute module ······························································································ 7-3

Removing the main board of a compute module ······································································ 7-4

Installing a compute module and its main board ······································································ 7-5

Verifying the replacement ··································································································· 7-7

Replacing access panels ·········································································································· 7-7

Replacing a compute module access panel ············································································ 7-7

Replacing the chassis access panel ····················································································· 7-8

Replacing a power supply ········································································································· 7-9

Replacing air baffles ·············································································································· 7-11

Replacing air baffles in a compute module ··········································································· 7-11

Replacing the power supply air baffle·················································································· 7-13

Replacing a riser card air baffle ························································································· 7-14

Replacing a riser card and a PCIe module ·················································································· 7-16

Replacing the riser card and PCIe module in a compute module ·············································· 7-16

Replacing a riser card and PCIe module at the server rear ······················································ 7-17

Replacing a storage controller ································································································· 7-19

Guidelines ···················································································································· 7-20

Preparing for replacement ································································································ 7-20

iii

Procedure ····················································································································· 7-20

Verifying the replacement ································································································· 7-21

Replacing the power fail safeguard module for a storage controller ·················································· 7-21

Replacing a GPU module ······································································································· 7-23

Replacing the GPU module in a compute module ·································································· 7-23

Replacing a GPU module at the server rear ········································································· 7-24

Replacing an Ethernet adapter ································································································· 7-24

Replacing an mLOM Ethernet adapter ················································································ 7-25

Replacing a PCIe Ethernet adapter ···················································································· 7-26

Replacing an M.2 transfer module and a PCIe M.2 SSD ································································ 7-26

Replacing the M.2 transfer module and a PCIe M.2 SSD in a compute module ···························· 7-26

Replacing an M.2 transfer module and a PCIe M.2 SSD at the server rear·································· 7-28

Replacing an SD card ············································································································ 7-28

Replacing the dual SD card extended module ············································································· 7-29

Replacing an NVMe SSD expander module ················································································ 7-30

Replacing the NVMe VROC module ·························································································· 7-31

Replacing a fan module ·········································································································· 7-32

Replacing a processor ··········································································································· 7-34

Guidelines ···················································································································· 7-34

Prerequisites ················································································································· 7-34

Removing a processor ····································································································· 7-34

Installing a processor ······································································································ 7-36

Verifying the replacement ································································································· 7-37

Replacing a DIMM················································································································· 7-37

Replacing the system battery ··································································································· 7-38

Removing the system battery ···························································································· 7-39

Installing the system battery ····························································································· 7-39

Verifying the replacement ································································································· 7-40

Replacing drive backplanes ····································································································· 7-40

Replacing the management module ·························································································· 7-41

Removing the management module ··················································································· 7-41

Installing the management module ····················································································· 7-42

Replacing the PDB ················································································································ 7-42

Removing the PDB ········································································································· 7-43

Installing the PDB ··········································································································· 7-44

Replacing the midplane ·········································································································· 7-46

Removing the midplane ··································································································· 7-46

Installing the midplane ····································································································· 7-47

Replacing the diagnostic panel ································································································ 7-48

Replacing chassis ears ·········································································································· 7-48

Replacing the TPM/TCM ········································································································ 7-50

8 Connecting internal cables ···························································· 8-1

Connecting drive cables ··········································································································· 8-1

Connecting drive cables in compute modules ········································································· 8-1

Storage controller cabling in riser cards at the server rear ························································· 8-5

Connecting the flash card on a storage controller ··········································································· 8-8

Connecting the GPU power cord ································································································ 8-9

Connecting the NCSI cable for a PCIe Ethernet adapter ································································ 8-10

Connecting the front I/O component cable from the right chassis ear ··············································· 8-11

Connecting the cable for the front VGA and USB 2.0 connectors on the left chassis ear ······················· 8-11

9 Maintenance ·············································································· 9-1

Guidelines ····························································································································· 9-1

Maintenance tools ··················································································································· 9-1

Maintenance tasks ·················································································································· 9-1

Observing LED status ······································································································· 9-1

Monitoring the temperature and humidity in the equipment room ················································ 9-1

Examining cable connections ······························································································ 9-2

Technical support ··················································································································· 9-2

10 Appendix A Server specifications ··············································· 10-1

Server models and chassis view ······························································································ 10-1

Technical specifications ·········································································································· 10-2

Components ························································································································ 10-3

Front panel ·························································································································· 10-4

Front panel view of the server ··························································································· 10-4

Front panel view of a compute module ················································································ 10-6

LEDs and buttons ··········································································································· 10-7

Ports···························································································································· 10-8

Rear panel ·························································································································· 10-9

Rear panel view ············································································································· 10-9

LEDs ··························································································································· 10-9

Ports··························································································································· 10-11

Main board of a compute module ···························································································· 10-11

Main board components ································································································· 10-11

DIMM slots ··················································································································· 10-12

Management module ············································································································ 10-13

Management module components ···················································································· 10-13

System maintenance switches ························································································· 10-14

PDB ·································································································································· 10-15

11 Appendix B Component specifications ········································ 11-1

About component model names ······························································································· 11-1

Software compatibility ············································································································ 11-1

Processors ·························································································································· 11-1

Intel processors ············································································································· 11-1

Jintide-C series processors ······························································································ 11-3

DIMMs ································································································································ 11-3

DRAM specifications ······································································································· 11-3

DCPMM specifications ···································································································· 11-4

DRAM DIMM rank classification label ················································································· 11-4

HDDs and SSDs ··················································································································· 11-5

Drive specifications ········································································································· 11-5

Drive LEDs ··················································································································· 11-8

Drive configurations and numbering ··················································································· 11-9

PCIe modules ····················································································································· 11-14

Storage controllers ········································································································ 11-15

NVMe SSD expander modules ························································································· 11-20

GPU modules ··············································································································· 11-20

PCIe Ethernet adapters ·································································································· 11-22

FC HBAs ····················································································································· 11-23

mLOM Ethernet adapters ······································································································· 11-26

Riser cards ························································································································· 11-26

Riser card guidelines ······································································································ 11-27

RS-FHHL-G3 ················································································································ 11-27

RS-GPU-R6900-G3 ······································································································· 11-27

RS-4*FHHL-G3 ············································································································· 11-28

RS-6*FHHL-G3-1 ·········································································································· 11-29

RS-6*FHHL-G3-2 ·········································································································· 11-30

Riser card and system board port mapping relationship ························································· 11-31

Fan modules ······················································································································· 11-32

Air baffles ··························································································································· 11-33

Compute module air baffles ····························································································· 11-33

Power supply air baffle ··································································································· 11-34

Rear riser card air baffles ································································································ 11-34

Power supplies ···················································································································· 11-35

800 W power supply ······································································································ 11-35

800 W high-voltage power supply ····················································································· 11-35

1200 W power supply ····································································································· 11-36

1600 W power supply ····································································································· 11-36

850 W high-efficiency Platinum power supply ······································································ 11-37

Expander modules ··············································································································· 11-37

Diagnostic panels················································································································· 11-38

Diagnostic panel specifications ························································································· 11-38

Diagnostic panel view ····································································································· 11-38

LEDs ·························································································································· 11-38

Fiber transceiver modules ······································································································ 11-42

Storage options other than HDDs and SDDs ·············································································· 11-42

NVMe VROC modules ·········································································································· 11-42

TPM/TCM modules ·············································································································· 11-42

Compute modules ················································································································ 11-43

Security bezels, slide rail kits, and CMA ···················································································· 11-43

12 Appendix C Managed hot removal of NVMe drives ························ 12-1

Performing a managed hot removal in Windows ·········································································· 12-1

Prerequisites ················································································································· 12-1

Procedure ····················································································································· 12-1

Performing a managed hot removal in Linux ··············································································· 12-2

Prerequisites ················································································································· 12-2

Performing a managed hot removal from the CLI ·································································· 12-2

Performing a managed hot removal from the Intel

ASM Web interface ····································· 12-3

13 Appendix D Environment requirements ······································· 13-1

About environment requirements ······························································································ 13-1

General environment requirements ··························································································· 13-1

Operating temperature requirements ························································································· 13-1

14 Appendix E Product recycling ··················································· 14-1

15 Appendix F Glossary ······························································· 15-1

16 Appendix G Acronyms ····························································· 16-1

1-1

1 Safety information

Safety sign conventions

To avoid bodily injury or damage to the server or its components, make sure you are familiar with the

safety signs on the server chassis or its components.

Table 1-1 Safety signs

Sign Description

Circuit or electricity hazards are present. Only H3C authorized or professional

server engineers are allowed to service, repair, or upgrade the server.

WARNING!

To avoid bodily injury or damage to circuits, do not open any components marked

with the electrical hazard sign unless you have authorization to do so.

Electrical hazards are present. Field servicing or repair is not allowed.

WARNING!

To avoid bodily injury, do not open any components with the field-servicing

forbidden sign in any circumstances.

The surface or component might be hot and present burn hazards.

WARNING!

To avoid being burnt, allow hot surfaces or components to cool before touching

them.

The server or component is heavy and requires more than one people to carry or

move.

WARNING!

To avoid bodily injury or damage to hardware, do not move a heavy component

alone. In addition, observe local occupational health and safety requirements and

guidelines for manual material handling.

The server is powered by multiple power supplies.

WARNING!

To avoid bodily injury from electrical shocks, make sure you disconnect all power

supplies if you are performing offline servicing.

Power source recommendations

Power instability or outage might cause data loss, service disruption, or damage to the server in the

worst case.

To protect the server from unstable power or power outage, use uninterrupted power supplies (UPSs)

to provide power for the server.

1-2

Installation safety recommendations

To avoid bodily injury or damage to the server, read the following information carefully before you

operate the server.

General operating safety

To avoid bodily injury or damage to the server, follow these guidelines when you operate the server:

• Only H3C authorized or professional server engineers are allowed to install, service, repair,

operate, or upgrade the server.

• Make sure all cables are correctly connected before you power on the server.

• Place the server on a clean, stable table or floor for servicing.

• To avoid being burnt, allow the server and its internal modules to cool before touching them.

Electrical safety

WARNING!

If you put the server in standby mode (system LED in amber) with the power on/standby button on

the front panel, the power supplies continue to supply power to some circuits in the server. To

remove all power for servicing safety, you must first press the button until the system LED turns into

steady amber, and then remove all power cords from the server.

To avoid bodily injury or damage to the server, follow these guidelines:

• Always use the power cords that came with the server.

• Do not use the power cords that came with the server for any other devices.

• Power off the server when installing or removing any components that are not hot swappable.

Rack mounting recommendations

To avoid bodily injury or damage to the equipment, follow these guidelines when you rack mount a

server:

• Mount the server in a standard 19-inch rack.

• Make sure the leveling jacks are extended to the floor and the full weight of the rack rests on the

leveling jacks.

• Couple the racks together in multi-rack installations.

• Load the rack from the bottom to the top, with the heaviest hardware unit at the bottom of the

rack.

• Get help to lift and stabilize the server during installation or removal, especially when the server

is not fastened to the rails. As a best practice, a minimum of four people are required to safely

load or unload a rack. A fifth person might be required to help align the server if the server is

installed higher than check level.

• For rack stability, make sure only one unit is extended at a time. A rack might get unstable if

more than one server unit is extended.

• Make sure the rack is stable when you operate a server in the rack.

• To maintain correct airflow and avoid thermal damage to the server, use blanks to fill empty rack

units.

1-3

ESD prevention

Electrostatic charges that build up on people and tools might damage or shorten the lifespan of

boards, the midplane, and electrostatic-sensitive components.

Preventing electrostatic discharge

To prevent electrostatic damage, follow these guidelines:

• Transport or store the server with the components in antistatic bags.

• Keep the electrostatic-sensitive components in the antistatic bags until they arrive at an

ESD-protected area.

• Place the components on a grounded surface before removing them from their antistatic bags.

• Avoid touching pins, leads, or circuitry.

• Make sure you are reliably grounded when touching an electrostatic-sensitive component or

assembly.

Grounding methods to prevent electrostatic discharge

The following are grounding methods that you can use to prevent electrostatic discharge:

• Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

• Take adequate personal grounding measures, including wearing antistatic clothing, static

dissipative shoes, and antistatic gloves.

• Use conductive field service tools.

• Use a portable field service kit with a folding static-dissipating work mat.

Cooling performance

Poor cooling performance might result from improper airflow and poor ventilation and might cause

damage to the server.

To ensure good ventilation and proper airflow, follow these guidelines:

• Install blanks if the following module slots are empty:

{ Compute module slots.

{ Drive bays.

{ Rear riser card bays.

{ PCIe slots.

{ Power supply slots.

• Do not block the ventilation openings in the server chassis.

• To avoid thermal damage to the server, do not operate the server for long periods in any of the

following conditions:

{ Access panel open or uninstalled.

{ Air baffles uninstalled.

{ Riser cards uninstalled.

{ PCIe slots, drive bays, or power supply slots empty.

• If the server is stacked in a rack with other devices, make sure there is a minimum clearance of

2 mm (0.08 in) below and above the server.

1-4

Battery safety

The server's management module contains a system battery, which is designed with a lifespan of 5

to 10 years.

If the server no longer automatically displays the correct date and time, you might need to replace

the battery. When you replace the battery, follow these safety guidelines:

• Do not attempt to recharge the battery.

• Do not expose the battery to a temperature higher than 60°C (140°F).

• Do not disassemble, crush, puncture, short external contacts, or dispose of the battery in fire or

water.

• Dispose of the battery at a designated facility. Do not throw the battery away together with other

wastes.

2-1

2 Preparing for installation

Prepare a rack that meets the rack requirements and plan an installation site that meets the

requirements of space and airflow, temperature, humidity, equipment room height, cleanliness, and

grounding.

Rack requirements

IMPORTANT:

As a best practice to avoid affecting the server chassis, install power distribution units (PDUs) with

the outputs facing backwards. If you install PDUs with the outputs facing the inside of the server,

please perform onsite survey to make sure the cables won't affect the server rear.

The server is 4U high. The rack for installing the server must meet the following requirements:

• A standard 19-inch rack.

• A clearance of more than 50 mm (1.97 in) between the rack front posts and the front rack door.

• A minimum of 1200 mm (47.24 in) in depth as a best practice. For installation limits for different

rack depth, see Table 2-1.

Table 2-1

Installation limits for different rack depths

Rack depth Installation limits

1000 mm

(39.37 in)

• H3C cable management arm (CMA) is not supported.

• A clearance of 60 mm (2.36 in) is reserved from the server rear to the rear rack

door for cabling.

• The slide rails and PDUs might hinder each other. Perform onsite survey to

determine the PDU installation location and the proper PDUs. If the PDUs hinder

the installation and movement of the slide rails anyway, use other methods to

support the server, a tray for example.

1100 mm

(43.31 in)

Make sure the CMA does not hinder PDU installation at the server rear before

installing the CMA. If the CMA hinders PDU installation, use a deeper rack or change

the installation locations of PDUs.

1200 mm

(47.24 in)

Make sure the CMA does not hinder PDU installation or cabling. If the CMA hinders

PDU installation or cabling, change the installation locations of PDUs.

For detailed installation suggestions, see Figure 2-1.

2-2

Figure 2-1 Installation suggestions for a 1200 mm deep rack (top view)

(1) 1200 mm (47.24 in) rack depth

(2) A minimum of 50 mm (1.97 in) between the rack front posts and the front rack door

(3) 830 mm (32.68 in) between the rack front posts and the rear of the chassis, including power supply

handles at the server rear (not shown in the figure)

(4) 830 mm (32.68 in) server depth, including chassis ears

(5) 950 mm (37.40 in) between the front rack posts and the CMA

(6) 860 mm (33.86 in) between the front rack posts and the rear ends of the slide rails

Installation site requirements

Space and airflow requirements

For convenient maintenance and heat dissipation, make sure the following requirements are met:

• The passage for server transport is a minimum of 1500 mm (59.06 in) wide.

• A minimum clearance of 1200 mm (47.24 in) is reserved from the front of the rack to the front of

another rack or row of racks.

• A minimum clearance of 800 mm (31.50 in) is reserved from the back of the rack to the rear of

another rack or row of racks.

• A minimum clearance of 1000 mm (39.37 in) is reserved from the rack to any wall.

2-3

• The air intake and outlet vents of the server are not blocked.

• The front and rear rack doors are adequately ventilated to allow ambient room air to enter the

cabinet and allow the warm air to escape from the cabinet.

• The air conditioner in the equipment room provides sufficient air flow for heat dissipation of

devices in the room.

Figure 2-2 Airflow through the server

(1) to (8) Directions of the airflow into the chassis and power supplies

(9) to (10) Directions of the airflow out of the chassis

Temperature, humidity, and altitude requirements

To ensure correct operation of the server, make sure the room temperature, humidity, and altitude

meet the requirements as described in "Appendix C Environment requirements."

Cleanliness requirements

Mechanically active substances buildup on the chassis might result in electrostatic adsorption, which

causes poor contact of metal components and contact points. In the worst case, electrostatic

adsorption can cause communication failure.

Table 2-2 Mechanically active substance concentration limit in the equipment room

Substance Particle diameter Concentration limit

Dust particles ≥ 5 µm

≤ 3 x 10

particles/m

(No visible dust on desk in three days)

Dust (suspension) ≤ 75 µm ≤ 0.2 mg/m

Dust

(sedimentation)

75 µm to 150 µm ≤ 1.5 mg/(m

Sand ≥ 150 µm ≤ 30 mg/m

The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and

premature aging of components, as shown in Table 2-3.

2-4

Table 2-3 Harmful gas limits in an equipment room

Gas Maximum concentration (mg/m

)

0.2

S 0.006

0.04

0.05

0.01

Grounding requirements

Correctly connecting the server grounding cable is crucial to lightning protection, anti-interference,

and ESD prevention. The server can be grounded through the grounding wire of the power supply

system and no external grounding cable is required.

Installation tools

Table 2-4 lists the tools that you might use during installation.

Table 2-4 Installation tools

Picture Name Description

T25 Torx screwdriver For captive screws inside chassis ears.

T30 Torx screwdriver

(Electric screwdriver)

For captive screws on processor heatsinks.

T15 Torx screwdriver

(shipped with the server)

For replacing the management module.

T10 Torx screwdriver

(shipped with the server)

For screws on PCIe modules.

Flat-head screwdriver For replacing processors or the management module.

Phillips screwdriver For screws on PCIe M.2 SSDs.

Cage nut insertion/extraction

tool

For insertion and extraction of cage nuts in rack posts.

Diagonal pliers For clipping insulating sleeves.

Tape measure For distance measurement.

2-5

Picture Name Description

Multimeter For resistance and voltage measurement.

ESD wrist strap For ESD prevention when you operate the server.

Antistatic gloves For ESD prevention when you operate the server.

Antistatic clothing For ESD prevention when you operate the server.

Ladder For high-place operations.

Interface cable (such as an

Ethernet cable or optical

fiber)

For connecting the server to an external network.

Monitor (such as a PC) For displaying the output from the server.

3-1

3 Installing or removing the server

Installing the server

As a best practice, install hardware options to the server (if needed) before installing the server in the

rack. For more information about how to install hardware options, see "Installing hardware options."

Installing the chassis rails and slide rails

Install the chassis rails to the server and the slide rails to the rack. For information about installing the

rails, see the installation guide shipped with the rails.

Rack-mounting the server

WARNING!

To avoid bodily injury, slide the server into the rack with caution for the sliding rails might squeeze

your fingers.

1. Remove the screws from both sides of the server, as shown in Figure 3-1.

Figure 3-1 Removing the screws from both sides of the server

2. Remove the security bezel, if any. For more information, see "Replacing the security bezel."

3. (Optional.) Remove the compute modules if the server is too heavy for mounting. For more

information, see "Removing a compute module."

4. Install the chassis handles. For more information, see the labels on the handles.

5. Lift the server and slide the server into the rack along the slide rails, as shown in Figure 3-2.

Remove

the chassis handles as you slide the server into the rack. For more information, see the

labels on the handles.

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H3C UniServer R6900 G3 User manual

H3C UniServer R6900 G3 User manual

H3C UniServer R6900 G3 User manual

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