Dell PowerEdge FX2/FX2s - Manual (Page 275)

3. After the software has determined that the temperature levels are within normal limits, you can re-
power the card safely. To bring back the line card online, use the power-on command in EXEC
mode.
In addition, Dell Networking requires that you install blanks in all slots without a line card to control
airflow for adequate system cooling.
NOTE: Exercise care when removing a card; if it has exceeded the major or shutdown thresholds,
the card could be hot to the touch.
Example of the show enivornment Command
Dell#show environment
-- Unit Environment Status --
Unit Status Temp Voltage TempStatus
---------------------------------------------------------------------------
* 0 online 59C ok 2
* Management Unit
-- Thermal Sensor Readings (deg C) --
Unit Sensor0 Sensor1 Sensor2
-------------------------------
0 55 45 58
Dell#
Recognize an Under-Voltage Condition
If the system detects an under-voltage condition, it sends an alarm.
To recognize this condition, look for the following system message: %CHMGR-1-CARD_SHUTDOWN:
Major alarm: Line card 2 down - auto-shutdown due to under voltage.
This message indicates that the specified card is not receiving enough power. In response, the system
first shuts down Power over Ethernet (PoE).
Troubleshoot an Under-Voltage Condition
To troubleshoot an under-voltage condition, check that the correct number of power supplies are
installed and their Status light emitting diodes (LEDs) are lit.
The following table lists information for SNMP traps and OIDs, which provide information about
environmental monitoring hardware and hardware components.
Table 29. SNMP Traps and OIDs
OID String OID Name Description
Receiving Power
.1.3.6.1.4.1.6027.3.10.1.2.5.1.6 chSysPortXfpRecvPower OID displays the receiving power
of the connected optics.
Transmitting power
.1.3.6.1.4.1.6027.3.10.1.2.5.1.8 chSysPortXfpTxPower OID displays the transmitting
power of the connected optics.
Temperature
Debugging and Diagnostics 275