Lenovo Flex System EN4023, User Manual

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Introduction 21
Locating the information panel, LEDs, and external ports
2
NOTE
The illustrations in this document might differ slightly from your hardware.
The information panel includes one mini-USB console port connector that is used for switch
management. This port requires a mini-USB plug on a serial cable. A single Ethernet port is also
provided that allows you to connect to the network using an RJ-45 connector.
The information panel offers up to 14 external ports that are capable of supporting 10- or 1-Gbps
Ethernet. The 10-Gbps speeds require a 10-Gbps SFP+ transceiver.
Also supported are two Quad SFP (QSFP) ports that can support 40-Gbps Ethernet, or 4x10-Gbps
Ethernet when configured in breakout mode.
For the most current information on supported components, go to the Lenovo Server Proven
website at
http://www-03.ibm.com/systems/info/x86servers/serverproven/compat/us/flex.html.
The information panel provides status information for the switch and for each port that is indicated
by LED activity. LEDs identify fault and activity information for each external port, switch status, and
network connectivity.
Information LEDs
The information panel on the switch supports three sets of LEDs that provide status information of
the switch, the network connection, and status of the external connections to the switch:
•
The Power, Location, and Fault LEDs on the bottom of the switch indicate the switch status.
•
The Fault (!) and Tx/Rx LEDs on each external port indicate the status of Ethernet activity.
•
The Ethernet (RJ-45) management port has separate link and activity LEDs.
In addition to the LEDs, the information panel is divided into three different groups (Group A,
Group B, and Group C). These groups support the ability to group “trunk ports.” A trunk port is a set
of individual ports that are grouped collectively to simulate a single port with much faster data
transmission. The ability to group trunk ports must be done using a particular set of ports. The
group divisions help you determine which ports are recognized in a single trunk.
•
Trunk Group A consists of ports 43 through 50.
•
Trunk Group B consists of ports 51 through 56.
•
Trunk Group C consists of QSFP ports 57 and 58.
NOTE
The FlexPort feature allows configuration of specific ports on the Lenovo Flex System EN4023 10Gb
Scalable Switch as 10 GbE ports or as 2 Gbps, 4 Gbps, 8 Gbps, or 16 Gbps FC ports, depending on
installed SFP+ transceivers. Therefore, status LEDs may indicate GbE or FC port function. Refer to
“FlexPort” on page 5 for more information. FlexPort is supported by Network OS 5.0.0 and later.
During normal operation, the Power LED is solid green and the Fault LED is off. The Fault LED on
the chassis is lit amber when a system error or event has occurred, for example when temperature
or electrical current exceeds certain thresholds. To identify the error or event, check the Lenovo
Chassis Management Module (CMM) event log or the switch system log.
An LED test occurs whenever the switch is turned on. All LEDs are lit and remain lit during power-on
self-test (POST), after which, all LEDs turn off except the Power LED. Any errors that are detected
during POST are written to the system log.