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FTOS Configuration Guide for the C-Series - Force10 Networks

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1. Use <strong>the</strong> show environment commands to monitor <strong>the</strong> temperature levels.<br />

2. Check air flow through <strong>the</strong> system. On <strong>the</strong> C-<strong>Series</strong>, air flows sideways from right to left. Ensure <strong>the</strong><br />

air ducts are clean and that all fans are working correctly.<br />

3. Once <strong>the</strong> software has determined that <strong>the</strong> temperature levels are within normal limits, <strong>the</strong> card can be<br />

re-powered safely. Use <strong>the</strong> power-on command in EXEC mode to bring <strong>the</strong> line card back online.<br />

In addition, <strong>Force10</strong> requires that you install blanks in all slots without a line card to control airflow <strong>for</strong><br />

adequate system cooling.<br />

Note: Exercise care when removing a card; if it has exceeded <strong>the</strong> major or shutdown thresholds, <strong>the</strong> card<br />

could be hot to <strong>the</strong> touch!<br />

Recognizing an Under-voltage Condition<br />

If <strong>the</strong> system detects an under-voltage condition and declares an alarm. To recognize this condition, look<br />

<strong>for</strong> <strong>the</strong> system messages in Table 73.<br />

Table 73 Under-voltage Condition System Messages<br />

%CHMGR-1-CARD_SHUTDOWN: Major alarm: Line card 2 down - auto-shutdown due to under voltage<br />

This message in Table 73 indicates that <strong>the</strong> specified card is not receiving enough power. In response, <strong>the</strong><br />

system first shuts down Power over E<strong>the</strong>rnet (PoE). If <strong>the</strong> under-voltage condition persists, line cards are<br />

shut down, <strong>the</strong>n RPMs.<br />

Troubleshooting an Under-voltage Condition<br />

To troubleshoot an under-voltage condition, check that <strong>the</strong> correct number of power supplies are installed<br />

and <strong>the</strong>ir Status LEDs are lit.<br />

Trace Logs<br />

In addition to <strong>the</strong> syslog buffer, <strong>FTOS</strong> buffers trace messages which are continuously written by various<br />

<strong>FTOS</strong> software tasks to report hardware and software events and status in<strong>for</strong>mation. Each trace message<br />

provides <strong>the</strong> date, time, and name of <strong>the</strong> <strong>FTOS</strong> process. All messages are stored in a ring buffer and can be<br />

saved to a file ei<strong>the</strong>r manually or automatically upon failover.<br />

• There are three trace buffers <strong>for</strong> CP: software, hardware, and command-history.<br />

• There are two trace buffers <strong>for</strong> LP: software and hardware.<br />

<strong>FTOS</strong> <strong>Configuration</strong> <strong>Guide</strong>, version 7.7.1.0 697

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