Lenovo Flex System Fabric CN4093 User manual

LenovoFlexSystemFabricCN409310GbConvergedScalableSwitch
User’sGuide

Important Product Information—
Before using this information and the product it supports, read Appendix B, “Notices” on page 51 of this manual, the product Warranty
Information and Important Notices documents, the System Safety Notices document and the LicenseAgreementfor MachineCode
(LAMC) document on the DocumentationCD, and the Systems EnvironmentalNoticeson the Environmental Notices CD.
January 2015 Edition
© Copyright 2015 Lenovo
Portions © Copyright IBM Corporation 2014.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA”
contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.
Lenovo and the Lenovo logo are trademarks of Lenovo in the United States, other countries, or both.

© Copyright 2015 Lenovo Contents 3
Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . .5
Read the Safety Information . . . . . . . . . . . . . . . . . . . . .5
Safety Statements . . . . . . . . . . . . . . . . . . . . . . . . . 7
UL Regulatory Information . . . . . . . . . . . . . . . . . . . . . .8
Chapter 1. The CN4093 10 Gb Converged Scalable Switch . . . . . . . .9
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . 11
About this User’s Guide . . . . . . . . . . . . . . . . . . . . 11
Notices and Statements in this Document . . . . . . . . . . . . . 11
The Documentation CD . . . . . . . . . . . . . . . . . . . . 12
Related Documentation . . . . . . . . . . . . . . . . . . . . 12
Chapter 2. Installing and Removing the CN4093 . . . . . . . . . . . 13
Before Installing the CN4093 . . . . . . . . . . . . . . . . . . . . 15
Recording Important Product Information . . . . . . . . . . . . . 15
Installation Guidelines . . . . . . . . . . . . . . . . . . . . . 16
System Reliability Guidelines . . . . . . . . . . . . . . . . . . 17
Handling Static-Sensitive Devices . . . . . . . . . . . . . . . . 17
Installing the CN4093 . . . . . . . . . . . . . . . . . . . . . . . 18
Removing or Replacing the Switch. . . . . . . . . . . . . . . . . . 20
Connecting Switch Ports. . . . . . . . . . . . . . . . . . . . . . 21
The Serial Console Port . . . . . . . . . . . . . . . . . . . . 21
The RJ-45 Management Port . . . . . . . . . . . . . . . . . . 22
Handling Transceiver Modules. . . . . . . . . . . . . . . . . . 23
SFP+ Ports . . . . . . . . . . . . . . . . . . . . . . . . . 24
QSFP+ Ports . . . . . . . . . . . . . . . . . . . . . . . . 26
Locating the Information Panels, LEDs, and External Ports . . . . . . . . 28
Information Panel . . . . . . . . . . . . . . . . . . . . . . . 28
Information LEDs . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 3. Configuring the CN4093 . . . . . . . . . . . . . . . . 33
Establishing an Interface Through the CMM . . . . . . . . . . . . . . 35
Enabling Management Through External Ports . . . . . . . . . . . . . 36
Accessing the Switch Through the SSHv2/Telnet Interface . . . . . . . . 37
Accessing the Switch Through the Serial-Port Interface. . . . . . . . . . 38
Accessing the Switch Through the Browser-Based Interface. . . . . . . . 38
Initial Configuration . . . . . . . . . . . . . . . . . . . . . . . . 39
Chapter 4. Updating the Firmware and Licensing. . . . . . . . . . . 41
Determining the Level of Switch Firmware . . . . . . . . . . . . . . . 41
Obtaining the Latest Level of Switch Firmware . . . . . . . . . . . . . 42
Upgrading the Switch Firmware . . . . . . . . . . . . . . . . . . . 42
Resetting and Restarting the Switch . . . . . . . . . . . . . . . . . 44
Acquiring Feature Licenses . . . . . . . . . . . . . . . . . . . . 45
Installing Feature Licenses . . . . . . . . . . . . . . . . . . . . . 46
Chapter 5. Solving Problems . . . . . . . . . . . . . . . . . . . 47
Running POST . . . . . . . . . . . . . . . . . . . . . . . . . 47
POST Errors . . . . . . . . . . . . . . . . . . . . . . . . . . 47

4CN4093 10 Gb Converged Scalable Switch User’s Guide
Appendix A. Getting Help and Technical Assistance . . . . . . . . . 49
Appendix B. Notices . . . . . . . . . . . . . . . . . . . . . . 51
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Important Notes . . . . . . . . . . . . . . . . . . . . . . . . . 52
Recycling information. . . . . . . . . . . . . . . . . . . . . . . 53
Particulate Contamination . . . . . . . . . . . . . . . . . . . . . 54
Telecommunication Regulatory Statement . . . . . . . . . . . . . . 55
Electronic Emission Notices . . . . . . . . . . . . . . . . . . . . 55
Federal Communications Commission (FCC) Statement . . . . . . . 55
Industry Canada Class A Emission Compliance Statement . . . . . . 55
Avis de Conformité à la Réglementation d'Industrie Canada . . . . . . 55
Australia and New Zealand Class A Statement . . . . . . . . . . . 55
European Union EMC Directive Conformance Statement . . . . . . . 56
Germany Class A Statement . . . . . . . . . . . . . . . . . . 56
VCCI Class A Statement . . . . . . . . . . . . . . . . . . . . 57
Japan Electronics and Information Technology Industries Association
(JEITA) Statement . . . . . . . . . . . . . . . . . . . . 58
Korea Communications Commission (KCC) Statement . . . . . . . . 58
Russia Electromagnetic Interference (EMI) Class A Statement . . . . . 58
People’s Republic of China Class A Electronic Emission Statement . . . 58
Taiwan Class A Compliance Statement . . . . . . . . . . . . . . 58

© Copyright 2015 Lenovo Safety Information 5
Safety Information
Read the Safety Information
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
Prije instalacije ovog produkta obavezno pročitajte Surgonosne Upute.
Před instalací tohoto produktu si přečtěte příručku bezpečnostních instrukcí.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d'installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.’
Πριν εγκαταστήσετε το προϊόν αυτό, διαβάστε τις Πληροφορίες ασφαλείας
(safety information).
A termék telepítés előtt olvassa el a Biztonsági előírásokat!
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Πред да инсталира овој продукт, прочитајте информацијата за безбедност.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Przed zainstalowaniem tego produktu, należy zapoznaćsięz książką“Informacje
dotyczace bezpieczeństwa” (Safety Information).

6 CN4093 10 Gb Converged Scalable Switch User’s Guide
Antes de instalar este produto, leia as Informações sobre Segurança.
Перед установкой продукта прочтитe инcтрyкции по тexникe безопасности.
Pred inštaláciou tohto zariadenia si prečítajte Bezpečnostné predpisy.
Pred namestitvijo tega proizvoda preberite Varnostne informacije.
Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
Bu ürünü kurmadan önce güvenlik bilgilerini okuyun.
Youq mwngz yungh canjbinj neix gaxgonq, itdingh aeu doeg aen canjbinj soengq
cungj vahgangj ancien suisik.

© Copyright 2015 Lenovo Safety Information 7
Safety Statements
Important—
Each caution and danger statement in this document is labeled with a number. This
number is used to cross reference the English-language caution or danger
statement with the translated versions of the caution or danger statement in the
Safety Information document.
For example, if a caution statement is labeled “Statement 1,” translations for that
caution statement are in the Safety Information document under “Statement 1.”
Be sure to read all caution and danger statements in this document before you
perform the procedures. Read any additional safety information that comes with the
system or optional device before you install the device.
Following is a compilation of the statements found throughout this manual.
Statement 1
DANGER
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
• Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical
storm.
• Connect all power cords to a properly wired and grounded electrical
outlet.
• Connect to properly wired outlets any equipment that will be attached to
this product.
• When possible, use one hand only to connect or disconnect signal
cables.
• Never turn on any equipment when there is evidence of fire, water, or
structural damage.
• Disconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
• Connect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached
devices.
To Connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
To Disconnect:
1. Turn everything OFF.
2. First, remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.

8 CN4093 10 Gb Converged Scalable Switch User’s Guide
Statement 3
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable
parts inside the device.
• Use of controls or adjustments or performance of procedures other than
those specified herein might result in hazardous radiation exposure.
DANGER
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Appareil À Laser de Classe 1
Statement 25
CAUTION:
This product contains a Class 1M laser. Do not view directly with optical
instruments.
UL Regulatory Information
This device is for use only with listed Lenovo Flex System Enterprise Chassis.
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.

© Copyright 2015 Lenovo 9
Chapter 1. The CN4093 10 Gb Converged Scalable Switch
Introduction
This User’s Guide provides information about the Lenovo
®
Flex System™ Fabric
CN4093 10 Gb Converged Scalable Switch (referred to as CN4093 or “switch”
throughout this document).
Figure 1. The CN4093
Note: The illustrations in this document might differ slightly from your hardware.
Tx / Rx
Link
1
Tx / Rx
Link
2
Tx / Rx
Link
10Gb
40Gb
3
3
4
Tx / Rx
Link
56
34
56
Tx / Rx
Link
78
Tx / Rx
Link
910
10Gb
40Gb
7
78
910
Tx / Rx
Link
Mgmt
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Tx / Rx
Link
Link
Link
Link
Link
Link
Link
Link
Link
Link
Link
Link
11
12
13
14
15
16
17
18
19
20
21
22
SFP+ module ports
QSFP+ module ports
RS-232 serial port
(management only)
RJ-45 external
management port
Switch status LEDs
Omni Ports

10 CN4093 10 Gb Converged Scalable Switch User’s Guide
The CN4093 provides support for Layer 2 and Layer 3 switching, as well as a full set
of converge features:
• Converged Enhanced Ethernet (CEE) including Fibre Channel over Ethernet
(FCoE) over all Ethernet ports, including Omni Ports acting in Ethernet mode.
• Priority-based Flow Control (PFC), Enhanced Transmission Selection (ETS) and
Data Center Bridging Capability Exchange (DCBX).
• N_Port Virtualization (NPV) Gateway and Full Fabric Fibre Channel Forwarder
(FCF).
• Full fabric Fibre Channel (FC) services, including Name Server and
hardware-based Zoning.
• Lenovo Virtual Network Interface Card (vNIC) Virtual Fabric Adapter with Single
Root I/O Virtualization (SR-IOV) capability.
The CN4093 provides pay-as-you-grow scalability. With optional licensing, you can
easily and cost-effectively enable expand the number of available ports.
The base license provides support for the following:
• Single compute node port capability, consisting of fourteen internal 10 Gigabit
Ethernet (GbE) with FCoE and auto-negotiation capability)
• Two external 10 GbE/FCoE Small Form-factor Pluggable Plus (SFP+) ports
which also support legacy 1 GbE/FCoE connections
• Six Omni Ports, allowing each port pair to be used as either two 10 GbE/FCoE
SFP+ ports or as FC ports independently capable of 4 or 8 Gigabits per second
(Gbps)
Additional ports are available with optional licenses. There are two upgrades that
are available for the CN4093 (see “Acquiring Feature Licenses” on page 45).
Upgrade 1 adds supports for the following:
• Fourteen additional internal 10 GbE/FCoE compute node ports
• Two external 40 GbE/FCoE Quad Small Form Pluggable Plus (QSFP+) ports,
each of which can be optionally used as four 10GbE/FCoE SFP+ ports
Upgrade 2 adds support for the following:
• Fourteen additional internal 10 GbE/FCoE compute node ports
• Six additional Omni Ports
Note: Upgrade 1 and Upgrade 2 are independent and can be installed in any order,
with or without the other.
SFP+ ports can be populated with 10 Gb optical or copper SFP+ transceiver
modules or Direct-Attach Cables (DACs), or legacy 1 Gb optical or copper SFP
transceiver modules.
QSFP+ ports can be populated with optical QSFP+ modules or DACs
, including
some that accept SFP+ or SFP modules.

© Copyright 2015 Lenovo Chapter 1: The CN4093 10 Gb Converged Scalable Switch 11
In addition to port flexibility, you can manage and configure the CN4093 through the
following interfaces:
• A Secure Shell (SSH) version 2 or Telnet connection to the embedded
Command-Line Interface (CLI)
• A terminal emulation program connection to the serial port interface
• A network management application using Simple Network Management Protocol
(SNMP)
• A Web browser-based interface (HTTPS/HTTP) connection to the switch
Documentation
About this User’s Guide
This User’s Guide provides information and instructions for installing the CN4093,
updating the firmware, and solving problems. For other information about
configuration and management of the switch, refer to the documents described in
“Related Documentation” on page 12.
Note:
•
The illustrations in this document might differ slightly from your hardware and
might not depict all included labels.
• The console output described or referenced in this document might differ slightly
from that displayed by your system. Output varies according to the type of
Lenovo chassis and the firmware versions and options that are installed.
Notices and Statements in this Document
The caution and danger statements in this document are also in the multilingual
Safety Information document, which is on the included Documentation CD. Each
statement is numbered for reference to the corresponding statement in the Safety
Information document.
The following notices and statements are used in this document:
• Note: These notices provide important tips, guidance, or advice.
• Important: These notices provide information or advice that might help you
avoid inconvenient or problem situations.
• Attention: These notices indicate potential damage to programs, devices, or
data. An attention notice is placed just before the instruction or situation in which
damage could occur.
• Caution: These statements indicate situations that can be potentially hazardous
to you. A caution statement is placed just before the description of a potentially
hazardous procedure step or situation.
• Danger: These statements indicate situations that can be potentially lethal or
extremely hazardous to you. A danger statement is placed just before the
description of a potentially lethal or extremely hazardous procedure step or
situation.

12 CN4093 10 Gb Converged Scalable Switch User’s Guide
The Documentation CD
The included Documentation CD contains documentation for your switch in Portable
Document Format (PDF).
The Documentation CD includes the product System Safety Notices document and
the License Machine Access Code (LAMC) document. The Environmental Notices
CD includes the product Environmental Notices document.
The Documentation CD requires the following minimum hardware and software:
• Microsoft Windows NT 4.0 (with Service Pack 3 or later), Windows 2000, or Red
Hat Linux.
• 100 MHz microprocessor.
• 32 MB of RAM.
• Adobe Acrobat Reader 3.0 (or later), or xpdf (which comes with Linux operating
systems). Acrobat Reader software is required for reading documents on the CD.
To access the documents on the CD:
• If you are using a Windows operating system, insert the CD into the CD or DVD
drive and from My Computer, double click the CD or DVD drive, then open the
folders and documents that support your product.
• If you are using a Linux operating system, insert the CD into the CD or DVD drive
and run the following command from the
mnt/cd directory:
sh.linux.sh
When the CD is mounted, open the directories and documents that support your
product.
Related Documentation
Additional or updated product documents may be available from the Lenovo
website. Such documents may cover features not described in the original
documentation that comes with the switch, or may include technical updates or
corrections.
You can obtain up-to-date information on the Lenovo support website:
http://support.lenovo.com/
Note: Changes are made periodically to the Lenovo website. Procedures for
locating firmware and documentation might vary slightly from what is
described in this document.
For information about switch hardware and firmware features, specifications, and
standards, including their configuration, see the Application Guide for your specific
switch and its installed firmware.
For information about the switch information, statistics, and individual configuration
parameters, see the Command Reference for your specific switch and its installed
firmware.
See the documentation that came with your Lenovo chassis for information about
the environmental conditions and specifications that are supported by the system.

© Copyright 2015 Lenovo 13
Chapter 2. Installing and Removing the CN4093
This chapter provides instructions for installing and removing the CN4093 in the
Lenovo Flex System chassis. See the documentation for your Lenovo Flex System
chassis for information about I/O bay locations and the components that can be
installed in them that is specific to your Lenovo Flex System chassis type.
The following illustration shows an example of a Lenovo Flex System chassis
(rear-view) with the I/O bays identified.
Figure 2. Flex System chassis I/O bays.
A Lenovo Flex System network adapter must be installed in each compute node
with which you want to communicate. To enable the switch to communicate with a
compute node, at least one switch must be installed in the Lenovo Flex System
chassis. For details about network adapter installation, configuration, and use, see
the documentation that comes with the Lenovo Flex System network adapter.
Installing a second switch enables a redundant path and a separate connection from
the compute node to the external Ethernet network.
The Lenovo Flex System chassis supports a maximum of four CN4093 modules.
The Lenovo Flex System chassis supports a maximum of twenty-eight network
adapters.
I/O Module
Bay 1
I/O Module
Bay 3
I/O Module
Bay 2
I/O Module
Bay 4

14 CN4093 10 Gb Converged Scalable Switch User’s Guide
Note:
•
I/O bays 1 and 2 support any standard Lenovo Flex System switch or pass-thru
module. When you install an I/O network adapter in the left-most fabric connector
on the compute node, these I/O bays support any switch with the same type of
network interface that is used by the corresponding network adapter.
• I/O bays 3 and 4 support any standard Lenovo Flex System switch or pass-thru
module. When you install an I/O network adapter in the right-most fabric
connector on the compute node, these I/O bays support any switch with the
same type of network interface that is used by the corresponding network
adapter.
• The compute nodes or Lenovo Flex System chassis that are described or shown
in this document might be different from your compute node or
Lenovo Flex
System chassis. For additional information, see the documentation that comes
with your
Lenovo Flex System chassis.
• When the switch is installed in a Lenovo Flex System chassis, the internal ports
operate at 1 Gigabits per second (Gbps) or 10 Gbps. The external ports can
operate at 1 Gbps, 4 Gbps, 8 Gbps, 10 Gbps, or 40 Gbps, depending on the port
type and installed transceiver modules.

© Copyright 2015 Lenovo Chapter 2: Installing and Removing the CN4093 15
Before Installing the CN4093
Recording Important Product Information
Attention: Product information is required in order to register your CN4093, update
its firmware, place a service call, or replace the unit.
Some of the product information labels may be hidden from view once the CN4093
is installed. To prevent the need to remove the switch in order to read required
product information, locate and record the information shown on Table 1 on page 16
prior to installation.
An example of the product information labels is shown as follows:
Figure 3. Sample product labels from the switch
Note: These examples are to help locate and identify the information labels. The
actual labels and information for your specific switch may differ.
The identification labels on the CN4093 contain the serial number and part number
of the switch. These labels also include the Media Access Control (MAC) address
(on the rear panel of unit) of the switch. Though helpful, the MAC address is not
required for opening a service call.

16 CN4093 10 Gb Converged Scalable Switch User’s Guide
Print this page and record product information below. Keep the information in a safe
place for future reference. You will need this information when you register the
switch or open a service call with Lenovo.
For convenience, once the CN4093 is installed and initialized, you can use the
show sys-info command in the switch firmware interface to display the product
serial number and other required information.
Installation Guidelines
Before you install the switch in the Lenovo Flex System chassis, read the following
information:
• Read the safety information that begins on page 5, “Handling Static-Sensitive
Devices” on page 17, and the safety statements in the
Lenovo Flex System
chassis documentation. This information provides a safe working environment.
• Observe good housekeeping in the area where you are working. Place removed
covers and other parts in a safe place.
• Blue on a component indicates touch points, where you can grip the component
to remove it from or install it in the compute node or
Lenovo Flex System chassis,
open or close a latch, and so on.
• Orange on a component or an orange label on or near a component on the
switch, compute node, or
Lenovo Flex System chassis indicates that the
component can be hot-swapped, which means that if the
Lenovo Flex System
chassis and operating system support hot-swap capability, you can remove or
install the component while the
Lenovo Flex System chassis is running. (Orange
can also indicate touch points on hot-swap components.) See the instructions for
removing or installing a specific hot-swap component for any additional
procedures that you might have to perform before you remove or install the
component.
• You do not have to turn off the Lenovo Flex System chassis to install or replace
any of the hot-swap modules on the front or rear of the
Lenovo Flex System
chassis.
• When you install the switch in the Lenovo Flex System chassis, you must also
install a compatible I/O network adapter in the compute node to support the
switch.
• When you are finished working on the compute node or Lenovo Flex System
chassis, reinstall all safety shields, guards, labels, and ground wires.
Table 1. Important product information
Product Name Lenovo Flex System Fabric CN4093 10 Gb
Converged Scalable Switch
Serial Number
Part Number
Media Access Control (MAC)
address for switch
MAC addresses for other
components

© Copyright 2015 Lenovo Chapter 2: Installing and Removing the CN4093 17
System Reliability Guidelines
To help ensure proper cooling, performance, and system reliability, make sure that
the following requirements are met:
• Each of the bays on the rear of the Lenovo Flex System chassis contains either
a module or a filler module.
• A removed hot-swap module is replaced with an identical module or filler module
within one minute of removal.
• A removed hot-swap compute node is replaced with another compute node or
filler node within one minute of removal.
• The ventilation areas on the sides of the compute node are not blocked.
• You have followed the reliability guidelines in the documentation that comes with
the
Lenovo Flex System chassis.
Handling Static-Sensitive Devices
Attention: Static electricity can damage the switch and other electronic devices. To
avoid damage, keep static-sensitive devices in their static-protective packages until
you are ready to install them.
To reduce the possibility of electrostatic discharge, observe the following
precautions:
• Limit your movement. Movement can cause static electricity to build up around
you.
• The use of a grounding system is recommended. For example, wear an
electrostatic-discharge wrist strap, if one is available.
• Handle the device carefully, holding it by its edges or its frame.
• Do not touch solder joints, pins, or exposed printed circuitry.
• Do not leave the device where others can handle and damage it.
• While the device is still in its static-protective package, touch it to an unpainted
metal part of any unpainted metal surface on a grounded rack component in the
rack in which you are installing the device, for at least two seconds. This drains
static electricity from the package and from your body.
• Remove the device from its package and install it directly into the switch without
setting it down. If it is necessary to set down the device, put it back into its
static-protective package. Do not place the device on a switch cover or on a
metal surface.
• Take additional care when you handle devices during cold weather. Heating
reduces indoor humidity and increases static electricity.
• Some types of Lenovo Flex System chassis come with electrostatic discharge
(ESD) connectors. If your unit is equipped with an ESD connector, see the
documentation that comes with the
Lenovo Flex System chassis for using the
ESD connector.

18 CN4093 10 Gb Converged Scalable Switch User’s Guide
Installing the CN4093
Note: The following illustration shows how to install the switch in a Lenovo Flex
System chassis. The appearance of your
Lenovo Flex System chassis might
be different; see the documentation for your
Lenovo Flex System chassis for
additional information.
Use the following instructions to install the switch in the Lenovo Flex System
chassis. You can install the switch while the Lenovo Flex System chassis is powered
on. For redundancy support, you must install I/O modules of the same type in I/O
bays 1 and 2, and I/O modules of the same type in bays 3 and 4 of the chassis.
To install the switch, complete the following steps.
1. Read the safety information that begins on page 5 and “Installation Guidelines”
on page 16.
2. Select I/O bay in which to install the switch.
Note: For details about I/O bay requirements and bay locations, see the
documentation for the
Lenovo Flex System chassis.
3. Remove the filler module from the selected bay. Store the filler module for
future use.
4. If you have not already done so, touch the static-protective package that
contains the switch to an unpainted metal surface of the
Lenovo Flex System
chassis or an unpainted metal surface on any other grounded rack-component
for at least 2 seconds.
5. Remove the switch from its static-protective package.
6. Make sure that the release levers on the switch are in the open position
(perpendicular to the switch).
7. Slide the switch into the applicable I/O bay until it stops.
8. Push the release levers on the front of the switch to the closed position. After
you insert and lock the switch, it is turned on (there may be a slight delay), and
a power-on self-test (POST) occurs to verify that the switch is operating
correctly.
Note: The switch may take up to two minutes to complete the POST. During
POST, the Power LED continuously flashes. Once POST has successfully
completed, the Power LED remains on and the Error LED is off.

© Copyright 2015 Lenovo Chapter 2: Installing and Removing the CN4093 19
9. Make sure that LEDs on the switch indicate that it is operating correctly (see
“Information LEDs” on page 30).
10. If you have another switch to install, repeat Step 3 through Step 9; otherwise,
go to the next step.
11. Install any port transceiver modules or Direct-Attach Cables (DACs) needed for
the switch. For information and instructions, see “Connecting Switch Ports” on
page 21 and the documentation that comes with the transceiver modules or
DACs.
12. Attach any cables that are required by the switch. For additional information
about cabling the switch, see “Connecting Switch Ports” on page 21, the
documentation that comes with the port transceiver modules, DACs, cables,
and the optional network devices to which the cables are connected.
13. Make sure that the external ports on the switch are enabled through one of the
Chassis Management Module (CMM) interfaces, such as the Browser-Based
Interface (BBI), Simple Network Management Protocol (SNMP) or the switch
Command-Line Interface (CLI) .

20 CN4093 10 Gb Converged Scalable Switch User’s Guide
Removing or Replacing the Switch
Note: The following illustration shows how to remove and replace the switch from
the
Lenovo Flex System chassis. The appearance of your Lenovo Flex
System chassis might be different; see the documentation for your
Lenovo
Flex System chassis for additional information.
To replace the switch, complete the following steps.
1. Read the safety information that begins on page 5 , and “Installation Guidelines”
on page 16.
2. Detach any cables that are attached to the switch you will be removing.
Note: Detaching cables from the switch ports disrupts the network connection
from the switch to any connected external devices. If you plan to replace
the switch with another switch, you can reuse the existing cables, provided
they remains securely attached to the network.
3. Pull the release latches out from the switch. The switch moves out of the bay
approximately 0.6 cm (0.25 inch).
4. Slide the switch out of the bay and set it aside in a safe, static-free location.
5. Place either another switch or a filler module in the bay.
Important: Complete this step within 1 minute. For more information, see
“Installing the CN4093” on page 18.
6. If you placed the switch in the bay, reconnect the ports that you disconnected in
Step 2 and attach any additional cables that are required by the switch.
For additional information about connecting ports, see “Connecting Switch
Ports” on page 21, and also the documentation that comes with the port
transceiver modules, DACs, cables, and the optional network devices to which
the cables have been connected.