Installing a disk shelf into a rack

To install a disk shelf into a rack, use the following tools and equipment:

A disk shelf containing the power supplies and SCSI disks you ordered
SCSI cables, as ordered
Four 6-32 x 3/8-inch Phillips flat-head screws
Two mounting ears (a pair)
These are usually preinstalled if you ordered a rack-mounted system.
#2 Phillips screwdriver
A disposable ESD (electrostatic discharge) wrist strap and grounding leash
Appropriate screws, if the provided screws do not fit your rack
Lock bar and key

To install the SDS12 into a rack, complete the following steps.

WARNING
Because the disk shelf is very heavy when loaded with disks, it is advised that another person assists you in the installation.

Step	Action
1	If. . .	Then. . .
1	The mounting ears are already attached to the shelf The mounting ears need to be attached	Go to Step 6. Go to Step 2.
2	Locate the slot at the front-right side of the SDS12.
3	Insert a mounting ear into the slot.
4	Thread two 6-32 x 3/8-inch screws through the storage system and into the mounting ear. You might need to shift the mounting ear to thread the screws correctly into the holes of the mounting ear.
5	Repeat Step 2 through Step 4 to install the left mounting ear.
6	Make sure that the disk shelf is fully loaded with disks that are firmly locked into the disk shelf before installing it into a rack. Caution Do not remove disks from the disk shelf before you install the disk shelf into the rack.
7	Put on an ESD wrist strap and grounding leash to protect against electrostatic discharge.
8	Insert the disk shelf into the interior slides of the mounting rails, as shown in the following figure.
9	Use a Phillips-head screwdriver to tighten the four screws on the mounting ears of the storage system. Ensure that the screws pass through the holes of the front vertical rail of the rack and into holes of the mounting-bracket flange.