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System Hardware Best Practices
• When a port has a Link Down status, it checks if an SFP is inserted.
• If an SFP is inserted, the port status remains at Link Down, and the F0276 event is not cleared. This
• If there is no SFP detected, the port status transitions from Link Down status to SFP Not Present. This
• When the port status is no longer Link Down, the F0276 is cleared.
System Hardware Best Practices
Installation Best Practices
When installing the chassis, follow these best practices:
• Plan your site configuration and prepare the site before installing the chassis.
• Verify that you have the appropriate power supplies for your chassis configuration.
• Install the chassis following the rack and airflow guidelines presented in this guide.
• Verify that the chassis is adequately grounded.
Initialization Best Practices
When the initial system boot is complete, verify the following:
• Power supplies are supplying power to the system.
• Fan modules are operating normally.
• The system software boots successfully.
System Operation Best Practices
To ensure proper operation of your system, take the following actions:
• Make a copy of the running configuration to CompactFlash for a safe backup.
• Never use the init system CLI command unless you understand that you will lose the running and startup
Cisco UCS 6200 Series Fabric Interconnect Hardware Installation Guide
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situation occurs when the SFP cable is plugged into the Fabric Interconnect port, and the SFP at the I/O
module is disconnected.
The "Link down or not connected" fault appears, and the fault is not cleared until the SFP is plugged
back into the I/O module port.
situation occurs when the SFP is plugged into the I/O module and the other end is not plugged into the
Fabric Interconnect port that is configured to be the server.
configuration as well as the files stored on bootflash:.
Troubleshooting Hardware Components
OL-24475-03
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