IBM Flex System V7000 Storage Node 4939H49 User Manual

Chapter 1. Introduction to IBM Flex Systems and IBM PureSystems offerings 

Draft Document for Review January 29, 2013 12:52 pm

For more information about the IBM Flex System Fabric EN4093 and EN4093R 10Gb 
Scalable Switches, refer to IBM Flex System Fabric EN4093 and EN4093R 10Gb Scalable 
Switches, TIPS0864.

The EN4091 10Gb Ethernet Pass-thru module offers a 1 for 1 connection between a single 
node bay and an I/O module uplink. It has no management interface and can support both 
1 Gb and 10 Gb dual-port adapters installed in the compute nodes. If quad-port adapters are 
installed in the compute nodes, only the first two ports will have access to the pass-thru 
module’s ports. 

The necessary 1 GbE or 10 GbE module (SFP, SFP+ or DAC) must also be installed in the 
external ports of the pass-thru, to support the desired speed (1 Gb or 10 Gb) and medium 
(fiber optic or copper) for adapter ports on the compute nodes. 

Four-port adapters: The EN4091 10Gb Ethernet Pass-thru has only 14 internal ports. As a 
result, only two ports on each compute node are enabled, one for each of two pass-thru 
modules installed in the chassis. If four-port adapters are installed in the compute nodes, 
ports 3 and 4 on those adapters are not enabled.

For more information about the IBM Flex System EN4091 10Gb Ethernet Pass-thru, refer to 
IBM Flex System EN4091 10Gb Ethernet Pass-thru Module, TIPS0865.

The EN2092 1Gb Ethernet Switch provides support for L2/L3 switching and routing. The 
switch has:

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Up to 28 internal 1Gb ports

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Up to 20 external 1Gb ports (RJ45 connectors)

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Up to 4 external 10Gb uplink ports (SFP+ connectors)

The switch comes standard with 14 internal and 10 external Gigabit Ethernet ports enabled. 
Further ports can be enabled, including the four external 10Gb uplink ports. 

For more information about the IBM Flex System EN2092 1Gb Ethernet Scalable Switch, 
refer to IBM Flex System EN2092 1Gb Ethernet Scalable Switch, TIPS0861.

The IBM Flex System FC5022 16Gb SAN Scalable Switch is a high-density, 48-port 16 Gbps 
Fibre Channel switch that is used in the Enterprise Chassis. The switch provides 28 internal 
ports to compute nodes by way of the midplane, and 20 external SFP+ ports. These SAN 
switch modules deliver an embedded option for IBM Flex System users deploying storage 
area networks in their enterprise. They offer end-to-end 16 Gb and 8 Gb connectivity. 

The N_Port Virtualization mode streamlines the infrastructure by reducing the number of 
domains to manage while enabling the ability to add or move servers without impact to the 
SAN. Monitoring is simplified via an integrated management appliance, or clients using 
end-to-end Brocade SAN can leverage the Brocade management tools. 

Two versions are available, a 12-port switch module and a 24-port switch with the Enterprise 
Switch Bundle (ESB) software. The port count can be applied to internal or external ports 
using a a feature called Dynamic Ports on Demand (DPOD).