
Chapter 6
Installing RA7x Disk Drives
This chapter describes how to install additional RA7x disk drives into SA7x enclosures that
are not fully populated. These options include the SA70–LK, SA71–NK, SA72–NK, and SA73–
NK. Other SA7x options described in this manual are fully configured (4 Disk Drives Installed)
and cannot have additional RA7x drives installed.
6.1 Unpacking RA7x Disk Drives
The add-on RA7x disk drive arrives in its own packaging.
Warning
Take all possible ESD precautions when unpacking the RA7x disk drive. Wear a
properly grounded ESD strap.
To unpack an RA7x disk drive:
1. Open the shipping carton.
2. Remove the RA7x disk drive wrapped in a protective wrapper.
3. Open the protective wrapper and remove the disk drive. Discard the desiccant bags.
4. Place the drive on the protective wrapper.
6.2 Powering Down the SA7x Enclosure
Before installing additional RA7x disk drives, remove all power to the enclosure, as explained
in the following procedure:
1. Take each RA7x disk drive off line.
a. Press and release both port switches on the operator control panel for the installed
RA7xs.
b. Press and release the appropriate Run switches. The switch indicators go out.
c. Set the drive power switches to Off. This removes dc power to the installed RA7xs.
Installing RA7x Disk Drives 6–1
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