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Lenovo Flex System SI4091 10Gb System Interconnect
Module
Product Guide
The Lenovo® Flex System SI4091 10Gb System Interconnect Module enables simplified, low-cost integration
of Flex System™ into your networking infrastructure.
The SI4091 requires no management for most data center environments, which eliminates the need to
configure each networking device or individual ports, thus reducing the number of management points. It
provides a low latency, loop-free interface that does not rely upon spanning tree protocols, which removes one
of the greatest deployment and management complexities of a traditional switch. The SI4091 offers
administrators a simplified deployment experience while maintaining the performance of intra-chassis
connectivity.
The Flex System Fabric SI4091 System Interconnect Module is shown in the following figure.
Figure 1. Lenovo Flex System Fabric SI4091 System Interconnect Module
Did you know?
The SI4091 provides transparent Flex System connectivity to your Cisco, Juniper, or other vendor network. The
SI4091 aggregates compute node ports by appearing as a simple pass-thru device. The upstream network
sees a "large pipe" of server traffic coming to and from the chassis, with the main difference being that intra-
chassis switching is supported. With the SI4091, a network administration team continues to use the same
network management tools that are deployed in the network to manage the connectivity from the physical
servers in the chassis to the upstream network.
With support for Converged Enhanced Ethernet (CEE), the SI4091 can be used as an FCoE transit device. It
also is ideal for network-attached storage (NAS) and iSCSI environments.
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Lenovo Flex System SI4091 10Gb System Interconnect Module
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Summary of Contents for Lenovo Flex System SI4091 10Gb
- Page 1 Lenovo Flex System SI4091 10Gb System Interconnect Module Product Guide The Lenovo® Flex System SI4091 10Gb System Interconnect Module enables simplified, low-cost integration of Flex System™ into your networking infrastructure. The SI4091 requires no management for most data center environments, which eliminates the need to configure each networking device or individual ports, thus reducing the number of management points.
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Page 2: Key Features
Customers who want to implement a converged infrastructure with NAS, iSCSI, or FCoE. For FCoE implementations, the SI4091 passes through FCoE traffic upstream to other devices (such as the Lenovo RackSwitch™ G8264CS) where the FC traffic is broken out. The SI4091 offers the following key features and benefits: Increased performance With the growth of virtualization and the evolution of cloud computing, many of today’s applications... -
Page 3: System Specifications
Components and connectors The front panel of the Flex System SI4091 10Gb System Interconnect Module is shown in the following figure. Figure 2. Front panel of the Lenovo Flex System SI4091 10Gb System Interconnect Module The front panel includes the following components: 10x SFP/SFP+ ports to attach SFP/SFP+ transceivers for 1 GbE or 10 GbE connections or SFP+ DAC cables for 10 GbE connections. - Page 4 Management ports 2x GbE internal ports connected to the chassis management module; 1x 10/100/1000 Mb Ethernet external port (RJ-45); 1x RS-232 external port (Mini-USB). Management Industry standard command line interface (isCLI); SNMP v1 and v3. Optional Lenovo Switch interfaces Center. Optional Lenovo XClarity.
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Page 5: Transceivers And Cables
Serial console cables Flex System Management Serial Access Cable Kit 90Y9338 A2RR SFP transceivers - 1 GbE Lenovo 1000BASE-T (RJ-45) SFP Transceiver (no 10/100 Mbps support) 00FE333 A5DL Lenovo 1000BASE-SX SFP Transceiver 81Y1622 3269 Lenovo 1000BASE-LX SFP Transceiver... - Page 6 10 Gb Ethernet 10Gb SR SFP+ (46C3447) 10GBASE-SR Up to 30 m with fiber optic cables supplied by Lenovo 1/10Gb SFP+ (00MY034) (see Table 3); up to 300 m with OM3 multimode fiber or up to 400 m with OM4 multimode fiber.
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Page 7: Software Features
Data Center Bridging Capability Exchange Protocol (DCBX) (IEEE 802.1AB) allows neighboring network devices to exchange information about their capabilities. Fibre Channel over Ethernet (FCoE): FC-BB5 FCoE specification compliant FCoE transit switch operations FCoE Initialization Protocol (FIP) snooping support Lenovo Flex System SI4091 10Gb System Interconnect Module... -
Page 8: Ethernet Standards
The SI4091 features the following approximate shipping dimensions and weight: Height: 114 mm (4.5 in.) Width: 508 mm (20.0 in.) Depth: 432 mm (17.0 in.) Weight: 4.1 kg (9.1 lb) Agency approvals Lenovo Flex System SI4091 10Gb System Interconnect Module... -
Page 9: Chassis And Adapters
The following table shows compatibility information for the SI4091 and Flex System chassis. Table 5. Flex System chassis compatibility Description Part Enterprise Enterprise Carrier-grade number Chassis Chassis with Chassis with with CMM CMM2 CMM2 Flex System SI4091 10Gb System Interconnect Module 00FE327 Lenovo Flex System SI4091 10Gb System Interconnect Module... - Page 10 Slot 1 Port 1 Port 2 Slot 2 Port 1 Port 2 Slot 3 Port 1 (full-wide compute nodes only) Port 2 Slot 4 Port 1 (full-wide compute nodes only) Port 2 Lenovo Flex System SI4091 10Gb System Interconnect Module...
- Page 11 49Y7900 A10Y * Withdrawn from marketing † The Embedded 10Gb Virtual Fabric Adapter is built into selected compute nodes. ** The Embedded 1 Gb Ethernet controller is built into selected compute nodes. Lenovo Flex System SI4091 10Gb System Interconnect Module...
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Page 12: Network Connectivity
In this loop-free redundant topology, each SI4091 is physically connected to a separate Top-of-Rack (ToR) switch with static or LACP aggregated links. When the SI4091 is used with the Lenovo RackSwitch switches, Virtual Link Aggregation Groups (vLAGs) can be used for load balancing and redundancy purposes. The virtual link aggregation topology with the Lenovo RackSwitch G8272 is shown in the following figure. -
Page 13: Storage Connectivity
SAN air gaps), consider the SI4091 connectivity topology shown in Figure 4 (Link Aggregation). The following table lists the 10 Gb Ethernet network switches that are offered by Lenovo that can be used with the SI4091 interconnect module in Flex System network connectivity solutions. - Page 14 ^ Available only in China. ** Available only in Japan. # x represents a geo-specific letter (for example: U = North America, G = EMEA). Ask a Lenovo representative for specifics. † Available worldwide except Latin America. ‡ Available only in Latin America.
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Page 15: Related Publications And Links
IBM Storwize for Lenovo storage: http://lenovopress.com/storage/san/ibm?rt=product-guide Related publications and links For more information, see the following Lenovo Flex System Fabric SI4091 System Interconnect Module product publications, which are available from the Flex System Information Center: http://flexsystem.lenovofiles.com/help/topic/com.lenovo.acc.si4091pt.doc/IO_Module_SI4091.html Flex System SI4091 10Gb System Interconnect Module Installation Guide... - Page 16 Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.
- Page 17 Trademarks Lenovo, the Lenovo logo, and For Those Who Do are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. A current list of Lenovo trademarks is available on the Web at http://www3.lenovo.com/us/en/legal/copytrade/. The following terms are trademarks of Lenovo in the United States, other countries, or both:...
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