Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 316
Display Power Supply Status, Display Fan Status
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To display information of hardware components of control bridge only, use the show environment all command. Dell#show environment all Display Power Supply Status To monitor the operational status of a power supply, use the show environment pem command. Use the command output to verify the operation of installed power supplies. The current operational status (up or down), power supply type, fan status and speed, and power usage are displayed. A switch power supply is sometimes referred to as a power entry module (PEM). Dell#show environment pem -- Power Supplies -- Unit Bay Status Type FanStatus FanSpeed(rpm) Power Usage (W) 0 0 down AC up 1376 0.0 0 1 up AC up 18848 666.0 0 2 down AC up 1312 0.0 0 3 up AC up 18880 643.0 When an under-voltage condition occurs on a power supply (for example, a power cable is removed): • A Syslog message is displayed to inform you that the power supply is down. The power supply number (for example, power supply 0) indicates the chassis bay in which it is installed; chassis bays are numbered 0 to 4, starting from the leftmost bay 0. unit 0 refers to the switch itself. Dell#00:20:34: %SYSTEM:CP %CHMGR-0-PS_DOWN: Major alarm: Power supply 0 in unit 0 is down Dell#00:20:53: %SYSTEM:CP %CHMGR-0-PS_DOWN: Major alarm: Power supply 2 in unit 0 is down • Use the show alarms command to display power-supply alarm messages. Dell#show alarms ... -- Major Alarms -- Alarm Type Duration PEM 0 in unit 0 down 25 sec PEM 2 in unit 0 down 6 sec • Use the show environment pem command to display complete information on power supply operation. Dell#show environment pem -- Power Supplies -- Unit Bay Status Type FanStatus FanSpeed(rpm) Power Usage (W) 0 0 down AC up 1376 0.0 0 1 up AC up 18848 666.0 0 2 down AC up 1312 0.0 0 3 up AC up 18880 643.0 Total power: 1309.0 W Display Fan Status To monitor the status of fan operation, use the show environment fan command. The command output displays the operational status of each fan, including tray status, and speed of each fan. Dell#show environment fan -- Fan Status -- Unit Bay TrayStatus Fan0 Speed Fan1 Speed 0 0 up up 5263 up 5292 0 1 up up 5274 up 5317 Debugging and Diagnostics 316
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