Dell POWEREDGE R710 - Manual (Page 81)

Installing System Components
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All drives are installed at the front of the system and connect to the system
board through the SAS backplane. Hard drives are supplied in special hot-
swappable hard-drive carriers that fit in the hard-drive bays.
CAUTION:
Before attempting to remove or install a 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 drive removal and
insertion.
CAUTION:
Do not turn off or reboot your system while the drive is being formatted.
Doing so can cause a drive failure.
NOTE:
Use only drives that have been tested and approved for use with the SAS
backplane board.
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.
Mixed SAS/SATA Hard-Drive Configurations
Mixed hard-drive configurations of SAS and SATA drives are allowed. In this
configuration, two SAS drives must be installed in hard-drive slots 0 and 1
only. The remaining slots can have SATA drives installed.
Mixed 2.5-inch and 3.5-inch configurations of SAS and SATA drives are also
supported in the 3.5-inch–bay chassis only. In this configuration, two 10,000-
RPM 2.5-inch SAS drives installed in 3.5-inch adapters must be used in hard-
drive slots 0 and 1 only (see "Front-Panel Features and Indicators"). The
remaining hard drives must be 3.5 inches in size and must be either all SAS or
all SATA drives.
Removing a Hard-Drive Blank
CAUTION:
To maintain proper system cooling, all empty hard-drive bays must
have drive blanks installed.
1 Remove the front bezel. See "Removing the Front Bezel."
2 Grasp the front of the hard-drive blank, press the release lever on the
right side, and slide the blank out until it is free of the drive bay. See
Figure 3-4.