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Air Inlet Temperature Threshold Settings
The table below lists the enclosure’s air inlet temperature thresholds and the different fan controller firmware actions for each threshold.
Table 5-6. Enclosure Air Inlet Temperature Threshold Settings
Enclosure | Threshold | Ambient | Threshold Level Action | |
Inlet | Setting | Temp |
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|
Condition |
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|
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|
|
|
|
Normal | Upper | 43 °C | Extremely high | Fan controller (FC) |
mode | (109.4 °F) |
| firmware shuts down the | |
|
|
|
| system. |
|
|
|
| NOTE: The firmware reads |
|
|
|
| inlet temperature every 5 secs. |
|
|
|
| If the inlet temperature reaches |
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|
|
| |
|
|
|
| firmware will start to check the |
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|
|
| power status for each sled and |
|
|
|
| initiate the sled for graceful |
|
|
|
| shutdown |
| Upper critical | 41 °C | High | Chassis status indicator |
|
| (105.8 °F) |
| lights amber. |
| Upper | 38 °C | Warning | Temperature events are |
| (100.4 °F) |
| recorded in the SEL. | |
| Lower | N/A | Warning | Temperature events are |
|
|
| recorded in the SEL. | |
| Lower critical | N/A | Low | Chassis status indicator |
|
|
|
| lights amber. |
| Lower | 5 °C | Extremely low | Chassis status indicator |
| (41 °F) |
| lights amber. |
Troubleshooting