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NOTE: After installing a power supply module, allow several seconds for the array to recognize
the power supply module and to determine if it is working properly.
If the problem is not resolved, see Getting Help.
Troubleshooting Array Cooling Problems
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
Ensure that none of the following conditions exist:
• Ambient temperature is too high, as a physical-disk drawer is left open for an extended period.
• External airflow is obstructed.
• The cooling fan module is removed or has failed.
If the problem is not resolved, see Getting Help.
Troubleshooting Expansion Enclosure Management
Modules
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
CAUTION: It is recommended that you turn off the host server before turning off the expansion
enclosure array to prevent loss of data.
If EMM status LED is blinking amber (5 times per sequence), update the firmware to the latest supported
firmware on both the EMMs. For more information on updating your EMM firmware, see Management
Firmware Downloads in the Dell PowerVault MD Series Storage Arrays Administrator's Guide at dell.com/
powervaultmanuals.
If The EMM Status LED Is Solid Or Blinking Amber (2 Or 4 Times Per
Sequence)
1. Turn off the host server.
2. Remove the EMM and verify that the pins on the backplane and EMM are not bent.
3. Reseat the EMM module and wait for 30 seconds.
4. Turn on the host server.
5. Check the EMM status LED.
6. If the LED does not turn Green, replace the EMM.
If the problem is not resolved, see Getting Help.
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