H3C S9820-8C-SAN User manual

H3C S9820-8C & S9820-8C-SAN Switches
Installation Guide
New H3C Technologies Co., Ltd.
http://www.h3c.com
Document version: 6W106-20230727

Copyright © 2020-2023, New H3C Technologies Co., Ltd. and its licensors
All rights reserved
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
H3C S9820-8C & S9820-8C-SAN Switches Installation Guide describes the appearance, installation,
power-on, maintenance, and troubleshooting of the H3C S9820-8C & S9820-8C-SAN Switches.
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.
•
Network administrators working with the S9820-8C switch.
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 OK.
> 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.
T
T
T
T

Documentation feedback
You can e-mail your comments about product documentation to inf[email protected].
We appreciate your comments.

i
Contents
1 Preparing for installation·············································································1
Safety recommendations ···································································································································1
Examining the installation site····························································································································1
Temperature/humidity································································································································2
Cleanliness·················································································································································2
Corrosive gas limit······································································································································2
EMI·····························································································································································3
Laser safety················································································································································4
Installation tools ·················································································································································4
Installation accessories······································································································································4
2 Installing the switch··················································································2-6
Installing the switch in a 19-inch rack··············································································································2-7
Rack-mounting procedure at a glance····································································································2-7
Rack requirements··································································································································2-8
Installation accessories···························································································································2-8
Attaching the mounting brackets to the chassis····················································································2-10
Attaching cage nuts and bottom support rails to the rack·····································································2-10
Mounting the switch in the rack·············································································································2-12
Attaching the cable management frame to the rack··············································································2-13
Connecting the grounding cable to the chassis ····················································································2-14
Grounding the switch ····································································································································2-15
Installing/removing fan modules····················································································································2-16
Installing a fan module··························································································································2-17
Removing a fan module························································································································2-18
Installing and removing power supplies········································································································2-18
Safety guidelines···································································································································2-19
Installing a power supply·······················································································································2-19
Removing a power supply·····················································································································2-20
Connecting the power cord for a power supply·····························································································2-21
Installing and removing interface modules····································································································2-22
Installing an interface module ···············································································································2-22
Removing an interface module ·············································································································2-24
Verifying the installation································································································································2-24
3 Accessing the switch for the first time····················································3-25
Connecting the switch to a configuration terminal·························································································3-25
Connecting the console cable·······················································································································3-26
Connecting a DB9-to-RJ45 console cable····························································································3-26
Connecting a USB-to-RJ45 console cable····························································································3-27
Connecting a mini USB console cable··································································································3-29
Setting terminal parameters··························································································································3-29
Powering on the switch·································································································································3-29
4 Setting up an M-LAG system·································································4-31
M-LAG system setup flowchart·····················································································································4-31
Planning for setting up an M-LAG system·····································································································4-32
Determining device installation locations······························································································4-32
Reserving physical ports for M-LAG connection···················································································4-32
Planning the cable connection scheme·································································································4-33
Configuring the M-LAG system settings································································································4-34
Restrictions and guidelines···················································································································4-35
Connecting the M-LAG member switches·····························································································4-35
Verifying the configuration·····························································································································4-35
5 Maintenance and troubleshooting··························································5-36
Power supply failure······································································································································5-36

ii
Symptom···············································································································································5-36
Solution·················································································································································5-36
Fan module failure ········································································································································5-36
Symptom···············································································································································5-36
Solution·················································································································································5-37
Configuration terminal display issues············································································································5-37
No output···············································································································································5-37
Garbled output ······································································································································5-37

1
1 Preparing for installation
H3C S9820-8C and S9820-8C-SAN switches are high-density intelligent 100G/400G switches
developed for data centers, providing powerful hardware forwarding capacity and abundant data
center features.
This document is applicable to the following switch models:
Product model Product code
S9820-8C LS-9820-8C
S9820-8C-SAN LS-9820-8C-SAN
Safety recommendations
To avoid any equipment damage or bodily injury caused by incorrect use, read the following safety
recommendations before installation. Note that the recommendations do not cover every possible
hazardous condition.
•
Before cleaning the switch, remove all power cords from the switch. Do not clean the switch
with wet cloth or liquid.
•
Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
•
Do not place the switch on an unstable case or desk. The switch might be severely damaged in
case of a fall.
•
Ensure good ventilation in the equipment room and keep the air inlet and outlet vents of the
switch free of obstruction.
•
Make sure the operating voltage is in the required range.
•
To avoid electrical shocks, do not open the chassis while the switch is operating. As a best
practice, do not open the chassis even if the switch is powered off.
•
To avoid ESD damage, always wear an ESD wrist strap when replacing power supplies, fan
modules, and interface modules.
Examining the installation site
The switch must be used indoors. Make sure the installation site meets the following requirements:
•
Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
•
The rack has a good ventilation system.
•
Identify the hot aisle and cold aisle at the installation site, and make sure ambient air flows into
the switch from the cold aisle and exhausts to the hot aisle.
•
Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the
neighboring devices from entering the top device.
•
The rack is sturdy enough to support the switch and its accessories.
•
The rack is reliably grounded.
To ensure correct operation and long service life of your switch, install it in an environment that meets
the requirements described in the following subsections.

2
Temperature/humidity
Maintain the temperature and humidity in the equipment room in the acceptable ranges.
•
Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical
property change of materials, and metal corrosion.
•
Lasting low relative humidity can cause washer contraction and ESD and cause problems
including loose mounting screws and circuit failure.
•
High temperature can accelerate the aging of insulation materials and significantly lower the
reliability and lifespan of the switch.
For information about the temperature and humidity requirements, see H3C S9820-8C &
S9820-8C-SAN Ethernet Switches Hardware Information and Specifications.
Cleanliness
Dust buildup on the chassis might cause electrostatic adsorption and dust corrosion, resulting in
poor contact of metal connectors and contact points. This might shorten the device's lifetime and
even cause device failure in the worst case. Table1-1 describes the switch requirement for
cleanliness.
Table1-1 Switch requirement for cleanliness
Substance Particle diameter Concentration limit
Dust particles ≥ 0.5 µm ≤ 1.8 × 107particles/m3
To maintain cleanliness in the equipment room, follow these guidelines:
•
Keep the equipment room away from pollution sources. Do not smoke, eat, or drink in the
equipment room.
•
Use double-layer glass in windows and seal doors and windows with dust-proof rubber strips.
Use screen doors and window screens for doors and windows open to the outside and make
sure the external windows are air tight.
•
Use dustproof materials for floors, walls, and ceilings and use wallpaper or matt paint that does
not produce powders.
•
Clean the equipment room regularly and clean the air filters of the rack each month.
•
Wear ESD clothing and shoe covers before entering the equipment room, keep the ESD
clothing and shoe covers clean, and change them frequently.
Corrosive gas limit
Corrosive gases can accelerate corrosion and aging of metal components. Make sure the corrosive
gases do not exceed the concentration limits as shown in Table1-2.
Table1-2 Corrosive gas concentration limits
Gas Average concentration (mg/m3) Maximum concentration (mg/m3)
SO20.3 1.0
H2S 0.1 0.5
Cl20.1 0.3
HCI 0.1 0.5
HF 0.01 0.03

3
Gas Average concentration (mg/m3) Maximum concentration (mg/m3)
NH31.0 3.0
O30.05 0.1
NOX0.5 1.0
CAUTION:
As a best practice, control the
corrosive gas concentrations in the equipment room at their
average
values
. Make sure the corrosive gas concentrations do not exceed 30 minutes per day at their
maximum values.
To control corrosive gases, use the following guidelines:
•
As a best practice, do not build the equipment room in a place with a high concentration of
corrosive gases.
•
Make sure the equipment room is not connected to sewer, vertical shaft, or septic tank pipelines
and keep it far away from these pipelines. The air inlet of the equipment room must be away
from such pollution sources.
•
Use environmentally friendly materials to decorate the equipment room. Avoid using organic
materials that contains harmful gases, such as sulfur or chlorine-containing insulation cottons,
rubber mats, sound-proof cottons, and avoid using plasterboards with high sulfur concentration.
•
Place fuel (diesel or gasoline) engines separately. Do not place them in the same equipment
room with the device. Make sure the exhausted air of the engines will not flow into the
equipment room or towards the air inlet of the air conditioners.
•
Place batteries separately. Do not place them in the same room with the device.
•
Employ a professional company to monitor and control corrosive gases in the equipment room
regularly.
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in the following ways:
•
A conduction pattern of capacitance coupling.
•
Inductance coupling.
•
Electromagnetic wave radiation.
•
Common impedance (including the grounding system) coupling.
To prevent EMI, use the following guidelines:
•
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE)
to filter interference from the power grid.
•
Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices.
•
Use electromagnetic shielding, for example, shielded interface cables, when necessary.
•
To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightning
strikes, route interface cables only indoors.

4
Laser safety
WARNING
!
Disconnected optical fibers or transceiver modules might emit invisible laser light. Do not stare into
beams or view directly with optical instruments when the switch is operating.
The switch is a Class 1M laser device.
Installation tools
No installation tools are provided with the switch. Prepare the following tools yourself:
•
Phillips screwdriver.
•
ESD wrist strap.
•
Marker.
Installation accessories
Before installation, make sure you have all the required installation accessories. If an accessory is
damaged or lost, use its BOM code to purchase a new one. You can find the BOM codes for the
accessories in Table1-3.
Table1-3 Installation accessories
BOM code Description Quantity
0223A1B0
Mounting brackets
1 kit (provided). The mounting bracket
with a round hole in the narrow flange
supports hanging a fixed asset tag.
0231A2VL
Bottom support rails
1 kit. You must purchase bottom support
rails for rack-mounting the switch.
0231ACWW Cable management frame 1 or 2 (optional)
N/A M6 screw and cage nut As required (user supplied)
0404A1RB
(single-hole
grounding lug) or
0404A162 (two-hole
grounding lug)
Grounding cable with a single-hole
grounding lug
Grounding cable with a two-hole
grounding lug
1 (provided)

5
BOM code Description Quantity
26010553 Grounding screw
2 (provided)
2113A2TU
Interface module filler panel
8 (provided)
2114A0CK
Power supply filler panel
2 (provided)
N/A Releasable cable tie As required (user supplied)
04042967
Console cable
Optional
0404A1EE
USB-to-RJ45 console cable
Optional
N/A
Mini USB console cable
User supplied
14990101
SFP port dust plug
1 (provided)

2-6
2 Installing the switch
CAUTION:
Keep the tamper
-
proof seal on a mounting screw on the chassis cover intact, and if you want to open
the chassis, contact
H3C for permission. Otherwise, H3C shall not be liable for any consequence
caused thereby.
CAUTION:
When installing the switch, always wear an ESD wrist strap and
make sure the wrist strap makes
good skin contact and is reliably grounded.

2-7
Figure2-1 Installation flow
Installing the switch in a 19-inch rack
Rack-mounting procedure at a glance
Figure2-2 Rack-mounting procedure
Start
Ground the switch
Select and install fan
modules
Select and install power
supplies
Connect power cords
Verify the installation
Turn on the circuit
breakers Troubleshoot
Operating correctly?
End
No
Yes
Turn off the circuit
breakers
Install the switch
Attach accessories to the
switch and rack
Install interface
modules?
Install interface modules
Operating correctly? Troubleshoot
No
Yes
Attach the mounting
brackets to both
sides of the switch
Attach the bottom
support rails to the
rack
Mount the switch in
the rack Connect the grounding cable

2-8
NOTE:
If a rack shelf is available, you can put the switch on the rack shelf and slide the switch to a position
so that the mounting brackets make close contact with the front rack posts. Then use screws t
o
secure the mounting brackets to the rack.
Rack requirements
To mount the switch in a 19-inch rack, the rack must meet the requirements in Table2-2.
Figure2-3 S9820-8C/S9820-8C-SAN chassis dimensions
(1) Fan module handle
(2) Interface module ejector lever
Table2-2 Rack requirements
Switch model Chassis dimensions
Distance
between the
front and rear
rack posts
Rack requirements
S9820-8C
S9820-8C-SAN
•Height—130.5 mm (5.14 in)/3
RU
•Width—440 mm (17.32 in)
•Depth—837 mm (32.95 in)
760 mm (29.92 in) for the
chassis
27 mm (1.06 in) for the
interface module ejector
levers
50 mm (1.97 in) for the fan
module handles
630 to 900 mm
(24.80 to 35.43 in)
•A minimum of 1200
mm (47.24 in) in
depth
(recommended)
•A minimum of 150
mm (5.91 in)
between the front
rack post and the
front door.
•A minimum of 840
mm (33.07 in)
between the front
rack post and the
rear door.
IMPORTANT:
To reserve enough cabling space and close the rack
door easily, make sure the rack meets the
depth requirements.
Installation accessories
Table2-3 Installation accessories for rack-mounting the switch
Item Quantity and requirements
Mounting bracket (provided) 1 kit. See Figure2-4. The mounting bracket with a round hole in the
narrow flange supports hanging a fixed asset tag.
760 mm
(29.92 in)
130.5 mm (5.14 in)
1
2
27 mm (1.06 in)
50 mm (1.97 in)

2-9
Cable management frame (optional) You can purchase one or two cable management frames for the
switch as required. See Figure2-5.
Bottom support rails (not provided) 1 kit. You must purchase bottom support rails for rack-mounting the
switch. See Figure2-6.
Figure2-4 Mounting brackets
Figure2-5 Cable management frame
Figure2-6 Bottom support rails
(1) Installation hole
(2) Guide rail
(3) Front end mark (FRONT)
2
1
3

2-10
Attaching the mounting brackets to the chassis
As shown in Figure2-7, the switch provides one installation position for mounting brackets.
Figure2-7 Installation position for mounting brackets
(1) Installation position for mounting brackets
To attach the mounting brackets to the chassis:
1. Place the wide side of a mounting bracket against its installation position on the chassis. Align
the mounting holes in the mounting bracket with the screw holes in the chassis.
2. Use the provided M4 screws to attach the mounting bracket to the chassis.
As a best practice, use a torque of 12 kgf-cm (1.18 Nm) to fasten the M4 screws.
3. Attach the other mounting bracket to the other side of the chassis in the same way.
Figure2-8 Attaching the mounting brackets to the switch
Attaching cage nuts and bottom support rails to the rack
1. Identify and mark the cage nut installation holes on the rack for securing mounting brackets and
bottom support rails.
The LSVM1BSR10 slide rails occupy 2U rack space, as shown in Figure2-9.
In a standard 1U rack space, there are three installation holes, one in the middle for auxiliary
installation and one at either end for standard installation. The spacing between two adjacent
1

2-11
standard installation holes is slightly smaller than the distance between a standard installation
hole and the middle, auxiliary installation hole.
Figure2-9 Slide rail installation position on the rack
(1) Positioning tab
(2) Bottom square hole in the 2U rack space
2. Install cage nuts (user-supplied) in the marked mounting holes in the rack posts.
3. Align the screw holes in one bottom support rail with the installation holes in the rack posts at
one side. Use the user-supplied M6 screws to attach the bottom support rail to the posts, as
shown in Figure2-10.
As a best practice, use a torque of 30 kgf-cm (2.94 Nm) to fasten the M6 screws.
4. Perform the same procedure to attach the other bottom support rail to the rack posts at the
other side.
Make sure the two bottom support rails are at the same height so that the bottom support rails
can slide into the chassis rails steadily.
1 RU
1 RU
1 RU
1 RU
1212

2-12
Figure2-10 Installing bottom support rails
Mounting the switch in the rack
This task requires two people.
To mount the switch in the rack:
1. Verify that the mounting brackets have been securely attached to the switch chassis.
2. Verify that the bottom support rails and cage nuts have been correctly attached to the rack
posts.
3. One person performs the following operations:
a. Supporting the bottom of the switch, aligns the chassis with the bottom support rails.
b. Pushes the switch slowly into the rack so that the mounting brackets are flush against the
rack posts.
4. Another person uses screws of appropriate size to attach the mounting brackets to the rack.
You need to prepare these screws yourself. Make sure the screws are anti-corrosive.
1
2
Attach bottom support rails
to the rack
Attach cage nuts
to the rack

2-13
Figure2-11 Mounting the switch in the rack
Attaching the cable management frame to the rack
You can purchase one cable management frame for the switch and install it on the rack posts
immediately above or below the switch as required. For more organized cabling, you can purchase
two cable management frames so that the switch has a cable management frame installed both
above and below it.
To attach a cable management frame to the switch:
1. Verify that the cage nuts for securing the cable management frame have been correctly
attached to the rack posts. For more information, see "Attaching cage nuts and bottom support
rails to the rack."
2. Determine to install the cable management frame above or below the switch based on the
cabling requirements.
3. Use screws of appropriate size to attach the cable management frame securely to the front rack
posts.