DELL MD3220 사용자 설명서

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Troubleshooting: Your Array
Troubleshooting Power Supply/Cooling Fan 
Module
 
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 array to prevent loss of data.
Locate the faulty power supply and determine the status of the LEDs.
• If the AC power LED is not lit, check the power cord and power source 
into which the power supply is plugged.
• Connect another device to the power source to verify if it is 
working.
• Connect the cable to a different power source.
• Replace the power cable.
If the problem is not resolved, see "Getting Help" on page 253.
• If the DC power LED is not lit, verify that the power switch is turned 
on. If the power switch is turned on, see step 2.
• If the power supply’s fault indicator is lit, see "Getting Help" on 
 
CAUTION: 
Power supply/cooling fan modules are hot-swappable. The array can 
operate on a single power supply; however both modules must be installed to 
ensure proper cooling. A single power supply/cooling fan module can be removed 
from a powered-on array for a maximum period of five minutes. Beyond that time, 
the array may automatically shut down to prevent damage.
Reseat the power supply by removing and reinstalling it. See "Power Supply 
 
NOTE: 
After installing a power supply, allow several seconds for the array to 
recognize the power supply and to determine if it is working properly.
book.book  Page 242  Monday, June 21, 2010  11:00 AM