Dell PowerVault MD3220 - Manual (Page 216)

216 Management: Installing Array Components
Power Supply/Cooling Fan Module
NOTE: Your storage array includes two integrated, hot-swappable power
supply/cooling fan modules.
The array supports two hot-swappable power supply/cooling fan modules.
While the array can operate temporarily with one module, both the modules
must be present for proper system cooling.
CAUTION: A single power supply/cooling fan module can be removed from a
powered-on array for a maximum period of 5 minutes. Beyond that time, the array
may automatically shut down to prevent damage.
Removing a Power Supply/Cooling Fan Module
CAUTION: Many repairs may only be done by a certified service technician. You
must 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.
NOTE: If you remove a fully functioning power supply/cooling fan module, the fan
speed in the remaining module increases significantly to provide adequate cooling.
The fan speed decreases gradually when a new power supply/cooling fan module
is installed.
1 Turn off the power supply/cooling fan module.
2 Disconnect the power cable from the power source.
3 Remove the straps that secure the power cable and then disconnect the
power cable from the power supply/cooling fan module.
WARNING: The power supply/cooling fan modules are heavy. Use both hands
while removing the module.
4 Press the release tab and pull the power supply out of the chassis.
book.book Page 216 Tuesday, June 18, 2013 2:53 PM