Lenovo Flex System Fabric SI4093 System Interconnect Module
User’s Guide
Important Product Information—
Before using this information and the product it supports, read Appendix B, “Notices” on page 59 of this
manual. Also read the product Warranty Information document, the Important Notices document, the Safety
Information document, the License Agreement for Machine Code (LAMC) document, and the Environmental
Notices and User Guide document located at Lenovo System x, ThinkServer and Storage product
LIMITED AND RESTRICTED RIGHTS NOTI CE: If data o r soft ware 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.
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.
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
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.
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.
8 SI4093 System Interconnect Module User’s Guide
Chapter 1. The SI4093 System Interconnect Module
SFP+ module ports
QSFP+ module ports
RS-232 serial port
(management only)
RJ-45 External
management port
Switch status LEDs
This User’s Guide provides information about the Lenovo® Flex System™ Fabric
SI4093 System Interconnect Module (referred to as SI4093 or “switch” throughout
this document).
Figure 1. The SI4093
Note: The illustrations in this document might differ slightly from your hardware.
The SI4093 is a 10 Gigabit Ethernet (GbE) unmanaged port aggregator designed to
provide stand-alone server-I/O-like management with
server-administration-friendly software and, by default, is managed using the
Chassis Management Module (CMM).
As a low-touch, simple-to-use device, the SI4093 provides a transparent network
interface between server elements within the chassis and the upstream data and
storage networking infrastructure. The switch provides convergence of traditional
Ethernet traffic with Fibre Channel over Ethernet (FCoE) storage session traffic on
both internal and external links, thus reducing the need for separate network and
storage cabling and infrastructure switching.
The SI4093 eliminates the configuration complexity that is normally associated
with embedded Layer 2 and Layer 3 switches. For example, the uplink ports are
preconfigured as a single IEEE 802.1 Link Aggregation Group (LAG) to form a
loop free interface that does not rely upon IEEE 802.1 Spanning Tree Protocols
(STPs). Any number of these uplink ports may be actively deployed to meet the
bandwidth requirements of the applications. At least one uplink must be active for
the switch to activate the internal server ports when in the factory default
configuration.
The SI4093 can be deployed in an unmanaged or fully managed topology. As an
unmanaged, plug-and-play device, the switch allows quick installation and
start-up of the chassis server modules when it is attached to a preconfigured
upstream top-of-rack switch.
Any configuration that is required for Layer 2 Virtual Large Area Networks
(VLANs), FCoE, or Internet Protocol (IP) routing is performed in either the server
elements or the top-of-rack switches. The SI4093 is transparent to the network and
storage streams and detects the FCoE session flow, if present, to ensure lossless
handling of this prioritized traffic class.
The SI4093 provides pay-as-you-grow scalability. With optional licensing, you can
easily and cost-effectively expand the number of available ports.
Depending on the installed licenses, the scalable switch can provide up to
sixty-four
10 Gigabit Ethernet (GbE)
The base license provides support for twenty-four
Single compute node port capability (fourteen internal 10 GbE ports)
Ten external 10 GbE Small Form-factor Pluggable Plus (SFP+) ports
ports.
10 GbE
ports:
Additional ports are available with optional licenses. There are two upgrades that
are available for the SI4093 (see “Acquiring Feature Licenses” on page 51).
Upgrade 1 supports up to twenty-two additional ports (up to forty-six total):
Dual compute node port capability (fourteen additional internal ports)
Two external 40 GbE Quad Small Form Pluggable Plus (QSFP+) ports, each of
which can be optionally used as four SFP+ ports
10 SI4093 System Interconnect Module User’s Guide
Upgrade 2 supports eighteen additional ports (up to sixty-four total)
Triple compute node port capability (fourteen additional internal ports)
Four additional external SFP+ ports
Note: Upgrade 1 is a prerequisite to Upgrade 2.
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.
In addition to port flexibility, you can manage and configure the SI4093 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
This User’s Guide provides information and instructions for installing the SI4093,
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 13.
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 St atement s in this Document
The caution and danger statements in this document are also in the multilingual
Safety Information document, which is located at Lenovo System x, ThinkServer and
Storage product documentation. 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 SI4093 System Interconnect Module User’s Guide
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.
This chapter provides instructions for installing and removing the SI4093 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.
I/O Module
Bay 1
I/O Module
Bay 3
I/O Module
Bay 2
I/O Module
Bay 4
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 SI4093 modules. The
Lenovo Flex System chassis supports a maximum of twenty-eight network
adapters.
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
in this document might be different from your compute node or
Lenovo
Flex System chassis that are described or shown
Lenovo
Flex
System chassis. For additional information, see the documentation that comes
with your
When the switch is installed in a
Lenovo
Flex System chassis.
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, 10 Gbps, or 40 Gbps, depending on the port type and installed
transceiver modules.
16 SI4093 System Interconnect Module User’s Guide
Before Installing the SI4093
Attention:
its firmware, place a service call, or replace the unit.
Some of the product information labels may be hidden from view once the SI4093
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 18 prior to installation.
An example of the product information labels is shown as follows:
Figure 3. Sample product labels from the switch
Product information is required in order to register your SI4093, update
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 SI4093 contain the serial number and part number
of the switch. These labels also include the Media Access Control (MAC) address
(on the uppermost handle) of the switch. Though helpful, the MAC address is not
required for opening a service call.
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.
Table 1.
Product NameLenovo Flex System Fabric SI4093 System
Serial Number
Part Number
Media Access Control
(MAC) address for switch
MAC addresses for other
components
For convenience, once the SI4093 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 19, and the safety statements in the
chassis documentation. This information provides a safe working environment.
Important product information
Interconnect Module
Lenovo
Flex System
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
component can be hot-swapped, which means that if the
Flex System chassis indicates that 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
any of the hot-swap modules on the front or rear of the
Lenovo
Flex System chassis to install or replace
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.
18 SI4093 System Interconnect Module User’s Guide
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
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 St atic-Sensitive Devices
Attention:
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.
Static electricity can damage the switch and other electronic devices. To
Lenovo
Flex System chassis contains either a
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
Note: The following illustration shows how to install the switch in a
System chassis. The appearance of your
different; see the documentation for your
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.
Lenovo
Lenovo
Lenovo
Flex System chassis might be
Flex System chassis for
Flex
1. Read the safety information that begins on page 5 and “Installation Guidelines” on
page 18.
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
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
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.
Lenovo
Flex System chassis.
Lenovo
Flex System chassis or an
20 SI4093 System Interconnect Module User’s Guide
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