Cisco Systems 9124E Interpreting LED activity

Cisco MDS 9124e Fabric Switch for HP c-Class BladeSystem 33

Interpreting LED activity

You can monitor switch activity and status by checking the switch LEDs.

There are three possible LED states: no light, a steady light, or a flashing light. The steady lights and

flashing lights can be green or amber.

The LEDs flash any of these colors during boot, POST, or other diagnostic tests. This is normal and

does not indicate a problem unless the LEDs do not indicate a healthy state after all boot processes

and diagnostic tests are complete. A healthy state is indicated by a steady green light. See Table 11

for details about LED activity.

LED indicators

All the LEDs are located on the port side. See Figure 8 and Tabl e 11.

Figure 8 Identifying LEDs

These LEDs are controlled by the OA and are used to indicate certain types of errors. The OA

interface should be used to display all errors. See the HP BladeSystem Onboard Administrator user

guide for information about the OA interface.

Table 11 Front panel LED indicators during normal operation

Item Description LED Indicators

1Unit ID (UID) LED Steady green light

2Health ID LED Steady green light

!

EXT 1 EXT 2 EXT 3 EXT 4

1

2

181873

Contents

Main Page Contents Page Page Page About this guide Intended audience Related documentation Contacting HP Technical Support HP contact information Document conventions and symbols Subscription service Other HP web sites Page 1 Overview Switch featu res Component identification Port side of the Switch 1 2 Internal ports summary Switch redun dancy Switch licensing Por tChannel Optional hardware kits Page 2 Setup Shipping carton contents 12 3 Installation and safety considerations Installing multiple switches Electrical considerations Environmental considerations Installing the Switch scale: 2/3" = 1" OA power verific ation Checking LEDs Setting the IP address Resetting the IP Address Configuring the Switch Items Required for Configu ration Connecting to the Command Line Interface Setting the date and time Verifying Installed Licenses Modifying the FC domain ID (optional) On Demand Ports Disabling and enabling a port Verifying the configuration Backing up the configuration Recovering the Admin Password Page Page 3 Managing the Switch Management features Maintaining the Switch Installing dust covers in empty ports Replacing an SFP transceiver Replacin g the Switch Powering on and off Interpreting LED activity LED indicators LED patterns POST and boot specifications POST Boot Interpreting POST results Page A Regulatory compliance and safety Regulatory compliance Federal Communications Com mission notice for Class A e quipment Declaration of conformity for products marked with the FCC logo, United States only Modifications Laser device Laser safety warning Certification and classification information Laser product label International notices and statements Canadian notice (avis Canadien) Class A equipment European Union notice Page Safety Battery replacement notice Taiwa n ba tte ry re cyclin g not ice Japanese power cord statement Waste Electrical and Electronic Equipment directive English notice Dutch notice Czechoslovakian notice Estonian no tice Finnish notice French n otice German notice Greek notice Hungarian notice Italian notice Latvian notice Lithuanian notice Poli sh no tice Port ugue se no tice Page Swedis h notice Page B Electrostatic discharge How to prevent electrostatic discharge Grounding methods Page C Switch technical specifications General specifications Weight and physical dimensions Environmental requirements Supported SFPs Supported HBAs Page Glossary Page Page Page Page Page Page Page Index A B C D