- Preface
- Cisco Nexus 5500 Platform Overview
- Installing the Cisco Nexus 5000 Series Switch
- Connecting the Switch
- Replacing Components
- Cabinet and Rack Installation
- Technical Specifications
- Cable and Port Specifications
- LEDs
- Troubleshooting Hardware Components
- Accessory Kits
- Site Planning and Maintenance Records
Cisco Nexus 5000 Series Hardware Installation Guide
Bias-Free Language
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
- Updated:
- November 4, 2014
Chapter: Troubleshooting Hardware Components
Troubleshooting Hardware Components
This appendix describes how to identify and resolve problems that might occur with the hardware components of a Cisco Nexus 5000 Series switch.
Overview
The key to success when troubleshooting the system hardware is to isolate the problem to a specific system component. The first step is to compare what the system is doing to what it should be doing. Because a startup problem can usually be attributed to a single component, it is more efficient to isolate the problem to a subsystem rather than troubleshoot each separate component in the system.
Problems with the initial power up are often caused by a module that is not firmly connected to the backplane or a power supply that has been disconnected from the power cord connector.
Overheating can also cause problems with the system, though typically only after the system has been operating for an extended period of time. The most common cause of overheating is the failure of a fan module.
SNMP Traps
You can set SNMP traps to monitor fans, power supplies, and temperature settings, or to test a call home application. Use the following commands to set SNMP traps:
Switch Hardware Best Practices
Use the recommendations in this section to ensure the proper installation, initialization, and operation of the switch.
This section includes the following topics:
Installation Best Practices
Initialization Best Practices
When the initial system boot is complete, verify the following:
Switch Operation Best Practices
To ensure proper operation of your switch, take the following actions:
- Make a copy of the running configuration to CompactFlash for a safe backup.
- Always enter the copy running-config startup-config CLI command after you modify the running configuration and ensure that the system is operating properly.
- Never use the init system CLI command unless you understand that you will lose the running and startup configuration as well as the files stored on bootflash:.
- Keep backup copies of the running kickstart and the system images on CompactFlash.
Power Supply Conditions
The two LEDs on each power supply indicate the power status for each power supply. To determine the current status for a power supply unit, note which LED is on, blinking, or off and refer to Table E-1 .
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