Dell PowerVault 221S (SCSI) - Manual (Page 9)

Rack Installation Guide 1-5
Recommended Tools and Supplies
The following items make the installation easier:
• A #2 Phillips screwdriver (if installing a VersaRails kit)
• Torx T-10 driver (if installing the tower-to-rack kit)
• 3/16-inch hex-head wrench (if installing the tower-to-rack kit)
Installation Tasks
Installing a rack kit involves the following tasks:
1 Removing the rack doors
2 Marking the rack
3 Installing the mounting rails in the rack
4 Installing the tower-to-rack conversion kit (if needed)
5 Installing the system in the rack
6 Replacing the rack doors
NOTE: The procedures that follow apply to both Dell rack cabinets and rack cabinets not
manufactured by Dell unless identified as specific to one or the other.
Removing the Rack Doors
See the procedures for removing doors in the documentation provided with your Dell 24-U
and 42-U rack cabinets. If you have a Dell PowerEdge™ 4210 rack cabinet, see the
procedures in the Dell PowerEdge 4210 Rack Installation Guide. If you have a rack cabinet
not manufactured by Dell, see the manufacturer’s documentation for removing doors.
CAUTION: Because of the size and weight of the rack cabinet doors, never
attempt to remove or install them by yourself.
Marking the Rack
NOTE: If you are installing a VersaRails rack kit, skip to the procedure, “Installing the
VersaRails Mounting Rails.”
You must allow 3-U (5.25 inches) of vertical space for each system you install in the rack.
Dell rack cabinets and rack cabinets not manufactured by Dell that meet EIA-310 standards
have an alternating pattern of three holes per U with center-to-center hole spacing
(beginning at the top hole of a 1-U space) of 15.9 mm, 15.9 mm, and 12.7 mm (0.625-inch,
0.625-inch, and 0.5-inch) for the front and rear vertical rails (see Figure 1-3).