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IBM Flex System EN4091 10Gb Ethernet Pass-thru Module 1

IBM Flex System EN4091 10Gb Ethernet Pass-thru

Module

Lenovo Press Product Guide

The IBM Flex System™ EN4091 10Gb Ethernet Pass-thru Module offers easy connectivity of the IBM Flex

System Enterprise Chassis to any external network infrastructure. This unmanaged device enables direct

Ethernet connectivity of the compute node in the chassis to an external top-of-rack data center switch.

This module can function at both 1 Gb and 10 Gb Ethernet speeds. It has fourteen internal 1 Gb or 10 Gb

links, and fourteen external 1 Gb or 10 Gb SFP+ uplinks.

The following figure shows the IBM Flex System EN4091 10Gb Ethernet Pass-thru Module.

Figure 1. IBM Flex System EN4091 10Gb Ethernet Pass-thru Module

Did you know?

The IBM Flex System EN4091 10Gb Ethernet Pass-thru Module provides 14 internal and 14 external 10

Gb Ethernet ports, and it supports 1 Gb and 10 Gb Ethernet signaling for Converged Enhanced Ethernet

(CEE), Fibre Channel over Ethernet (FCoE), and other Ethernet-based transport protocols.

IBM Flex System, a new category of computing and the next generation of Smarter Computing, offers

intelligent workload deployment and management for maximum business agility. This chassis delivers

high-speed performance complete with integrated servers, storage, and networking for multi-chassis

management in data center compute environments. Furthermore, its flexible design can meet the needs

of varying workloads with independently scalable IT resource pools for higher utilization and lower cost

per workload. While increased security and resiliency protect vital information and promote maximum

uptime, the integrated and easy-to-use management system reduces setup time and complexity,

providing a quicker path to return on investment (ROI).

Summary of content (14 pages)

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IBM Flex System EN4091 10Gb Ethernet Pass-thru Module Lenovo Press Product Guide The IBM Flex System™ EN4091 10Gb Ethernet Pass-thru Module offers easy connectivity of the IBM Flex System Enterprise Chassis to any external network infrastructure. This unmanaged device enables direct Ethernet connectivity of the compute node in the chassis to an external top-of-rack data center switch. This module can function at both 1 Gb and 10 Gb Ethernet speeds.
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Part number information The IBM Flex System EN4091 10Gb Ethernet Pass-thru Module has 14 internal and 14 external ports that can operate at 1 Gb or 10 Gb Ethernet speeds. The following table shows the part numbers for ordering the Pass-thru Module. Table 1.
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Supported transceivers and cables The following table lists the supported cables and transceivers. Table 2.
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Supported chassis and adapter cards The pass-thru modules are installed in I/O bays in the rear of the IBM Flex System Enterprise Chassis, as shown in the following figure. I/O modules are normally installed in pairs because I/O adapter cards installed in the compute nodes route to two I/O bays for redundancy and performance. Figure 2.
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The connections between the adapters installed in the compute nodes to the switch bays in the chassis are shown in the following figure. The figure shows both half-wide servers, such as the x240 with two adapters, and full-wide servers, such as the x440 with four adapters. Figure 3. Logical layout of the interconnects between I/O adapters and EN4091 modules The EN4091 10Gb Ethernet Pass-thru Module can be installed in bays 1, 2, 3, and 4 of the chassis.
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The following table shows the connections between the adapters installed in the compute nodes to the I/O module bays in the chassis. 4-port and 8-port adapters: With 4-port 1 GbE or 10 GbE or 8-port 10 GbE adapters, only up to two adapter ports can be used with the EN4091 pass-thru modules (one port per pass-thru module). Table 3.
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The following table lists the compatibility information for the I/O adapters and EN4091 10Gb Ethernet Pass-thru Modules. Table 4.
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The adapters are installed in slots in each compute node. The following figure shows the locations of the slots in the x240 Compute Node. The positions of the adapters in the other supported servers are similar. Figure 4. Location of the I/O adapter slots in the IBM Flex System x240 Compute Node Standards supported The module supports the following IEEE standards:       IEEE 802.3ab 1000BASE-T copper twisted pair Gigabit Ethernet IEEE 802.
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The front panel has the following components:  LEDs that show the status of the module and the network:  The OK LED indicates that the module has passed the power-on self-test (POST) with no critical faults and is operational.  The blue Identify LED is used to identify the module physically by using the management software to illuminate it.  The error LED (pass-thru module error) indicates that the module has failed the POST or detected an operational fault.
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Physical specifications These are the approximate dimensions and weight of the IBM Flex System EN4091 10Gb Ethernet Pass-thru Module:     Height: 30 mm (1.2 in.) Width: 401 mm (15.8 in.) Depth: 317 mm (12.5 in.) Weight: 3.7 kg (8.1 lb) Shipping dimensions and weight (approximate):     Height: 114 mm (4.5 in.) Width: 508 mm (20.0 in.) Depth: 432 mm (17.0 in.) Weight: 4.1 kg (9.
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Popular configurations The following figure shows the usage of the IBM Flex System EN4091 10Gb Ethernet Pass-thru Module to route two integrated 10 GbE ports and two 10 GbE ports on the dual-port expansion card installed in slot 2 of the compute node. Each compute node has a total of four 10 GbE ports, and four IBM Flex System EN4091 10Gb Ethernet Pass-thru Module are installed in bays 1, 2, 3, and 4 of the Enterprise Chassis.
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Related publications For more information, see the following IBM Flex System EN4091 10Gb Ethernet Pass-thru Module product publications, available from the IBM Flex System Information Center: http://publib.boulder.ibm.com/infocenter/flexsys/information/index.jsp  Installation and User's Guide Here are other useful references:  US Announcement Letter 112-053 http://ibm.
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Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local 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.
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This document was created or updated on November 26, 2014. Send us your comments in one of the following ways: Use the online Contact us review form found at: ibm.com/redbooks  Send your comments in an e-mail to: redbooks@us.ibm.com  This document is available online at http://www.ibm.com/redbooks/abstracts/tips0865.html . Trademarks Lenovo, For Those Who Do and the Lenovo logo are trademarks or registered trademarks of Lenovo in the United States, other countries, or both.