Technical Documentation
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Maintaining the T1600 Fan Trays
Purpose
For optimum cooling, verify the condition of the fans.
Action
On a regular basis:
- Monitor the status of the fans. The fan trays each contain multiple fans that work in unison to cool the router components. If one fan fails, the host subsystem adjusts the speed of the remaining fans to maintain proper cooling. A red alarm is triggered when a fan fails, and a yellow alarm is triggered when a fan tray is removed. During normal operation, the fans in each fan tray function at normal speed.
- To display the status of the fans, issue the show
chassis environment or show chassis fan command.
For the standard fan trays, the output for the show chassis environment command is similar to the following:
user@host> show chassis environmentClass Item Status Measurement ... Fans Top Left Front fan OK Spinning at normal speed Top Left Middle fan OK Spinning at normal speed Top Left Rear fan OK Spinning at normal speed Top Right Front fan OK Spinning at normal speed Top Right Middle fan OK Spinning at normal speed Top Right Rear fan OK Spinning at normal speed Bottom Left Front fan OK Spinning at normal speed Bottom Left Middle fan OK Spinning at normal speed Bottom Left Rear fan OK Spinning at normal speed Bottom Right Front fan OK Spinning at normal speed Bottom Right Middle fan OK Spinning at normal speed Bottom Right Rear fan OK Spinning at normal speed Rear Tray Top fan OK Spinning at normal speed Rear Tray Second fan OK Spinning at normal speed Rear Tray Third fan OK Spinning at normal speed Rear Tray Fourth fan OK Spinning at normal speed Rear Tray Fifth fan OK Spinning at normal speed Rear Tray Sixth fan OK Spinning at normal speed Rear Tray Seventh fan OK Spinning at normal speed Rear Tray Bottom fan OK Spinning at normal speed...Top Left and Top Right refer to fans in the upper front fan tray. Bottom Left and Bottom Right refer to fans in the lower front fan tray. Rear refers to the fans in the rear fan tray.
For the quiet fan trays, the output for the show chassis environment command is similar to the following:
user@host> show chassis environmentClass Item Status Measurement Fans Top Left Front fan OK Spinning at normal speed Top Left Rear fan OK Spinning at normal speed Top Right Front fan OK Spinning at normal speed Top Right Rear fan OK Spinning at normal speed Bottom Left Front fan OK Spinning at normal speed Bottom Left Rear fan OK Spinning at normal speed Bottom Right Front fan OK Spinning at normal speed Bottom Right Rear fan OK Spinning at normal speed Rear Tray Top fan OK Spinning at normal speed Rear Tray Second fan OK Spinning at normal speed Rear Tray Third fan OK Spinning at normal speed Rear Tray Fourth fan OK Spinning at normal speed Rear Tray Fifth fan OK Spinning at normal speed Rear Tray Sixth fan OK Spinning at normal speed Rear Tray Seventh fan OK Spinning at normal speed Rear Tray Bottom fan OK Spinning at normal speedTop Left and Top Right refer to fans in the upper front fan tray. Bottom Left and Bottom Right refer to fans in the lower front fan tray. Rear refers to the fans in the rear fan tray.
For the standard fan trays, the output for the show chassis fan command is similar to the following:
user@host> show chassis fanItem Status RPM Measurement Top Left Front fan OK 3420 Spinning at normal speed Top Left Middle fan OK 3420 Spinning at normal speed Top Left Rear fan OK 3450 Spinning at normal speed Top Right Front fan OK 3420 Spinning at normal speed Top Right Middle fan OK 3420 Spinning at normal speed Top Right Rear fan OK 3420 Spinning at normal speed Bottom Left Front fan OK 3420 Spinning at normal speed Bottom Left Middle fan OK 3450 Spinning at normal speed Bottom Left Rear fan OK 3360 Spinning at normal speed Bottom Right Front fan OK 3420 Spinning at normal speed Bottom Right Middle fan OK 3420 Spinning at normal speed Bottom Right Rear fan OK 3420 Spinning at normal speed Rear Tray Top fan OK 5190 Spinning at normal speed Rear Tray Second fan OK 5190 Spinning at normal speed Rear Tray Third fan OK 5190 Spinning at normal speed Rear Tray Fourth fan OK 5190 Spinning at normal speed Rear Tray Fifth fan OK 5190 Spinning at normal speed Rear Tray Sixth fan OK 5190 Spinning at normal speed Rear Tray Seventh fan OK 5190 Spinning at normal speed Rear Tray Bottom fan OK 5190 Spinning at normal speedFor the quiet fan trays, the output for the show chassis fan command is similar to the following:
user@host> show chassis fanItem Status RPM Measurement Top Left Front fan OK 2220 Spinning at normal speed Top Left Rear fan OK 2190 Spinning at normal speed Top Right Front fan OK 2220 Spinning at normal speed Top Right Rear fan OK 2250 Spinning at normal speed Bottom Left Front fan OK 2220 Spinning at normal speed Bottom Left Rear fan OK 2220 Spinning at normal speed Bottom Right Front fan OK 2250 Spinning at normal speed Bottom Right Rear fan OK 2220 Spinning at normal speed Rear Tray Top fan OK 5190 Spinning at normal speed Rear Tray Second fan OK 5190 Spinning at normal speed Rear Tray Third fan OK 5190 Spinning at normal speed Rear Tray Fourth fan OK 5190 Spinning at normal speed Rear Tray Fifth fan OK 5190 Spinning at normal speed Rear Tray Sixth fan OK 5190 Spinning at normal speed Rear Tray Seventh fan OK 5190 Spinning at normal speed Rear Tray Bottom fan OK 5190 Spinning at normal speed
Related Documentation
Published: 2011-12-20
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