Dell PowerEdge R520, Owner'S Manual, Page: 49 / 141

CAUTION: Before attempting to remove or install a hard drive while the system is running, see the documentation
for the storage controller card to ensure that the host adapter is configured correctly to support hot-swap hard
drive removal and insertion.
CAUTION: Do not turn off or reboot your system while the hard drive is being formatted. Doing so can cause a hard
drive failure.
NOTE: Use only hard drives that have been tested and approved for use with the hard-drive backplane.
When you format a hard drive, allow enough time for the formatting to be completed. Be aware that high-capacity hard
drives can take a number of hours to format.
Removing A 3.5 Inch Hard-Drive Blank
CAUTION: To maintain proper system cooling, all empty hard-drive slots must have drive blanks installed.
1. If installed, remove the front bezel.
2. Grasp the front of the hard-drive blank, press the release button and slide the blank out until it is free of the hard-
drive slot.
Figure 20. Removing and Installing a 3.5 Inch Hard-Drive Blank
1. hard-drive blank
2. release button
Installing A 3.5 Inch Hard-Drive Blank
CAUTION: To avoid damaging the hard-drive blank's metal spring, follow the hard-drive blank installation sequence
described in the figure below.
1. If installed, remove the front bezel.
2. Insert the hard-drive blank into the hard-drive slot until the release button clicks into place.
3. If applicable, install the front bezel.
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