HP StorageWorks 8000 - NAS Overview page 30

30 Installation Guide
WARNING Tipping hazard. Tipping of rack may cause severe injury or death. To prevent
tipping, anti-tipping feet must be installed on the rack prior to racking any of the
components.
Prevent Tipping. To prevent the rack from rolling while you mount the
components, make sure the leveler screws on the rack's lower four corners are in
firm contact with the floor.
Proper installation of the anti-tip feet is required before installing or servicing
any device in your racks. Use the anti-tip feet in the rack base (HP E Series
racks, bolt on front and back; HP Computer Cabinet, none; Compaq 9000 series,
front, left, right sides). Always use the rack mounting handles that are supplied
on rack-optimized units.
Never extend more than one piece of equipment on slides at one time. Always
start assembly at the bottom of the rack with the heaviest items and work upward:
UPS, tape library, NAS servers, Quorum server, FC switches, storage array(s),
disk enclosures.
When moving the rack, push against the rack at the 1.6 meter (63 inch) height
or lower. Exercise extra caution when moving rack sideways (racks are more
stable from front to back and when full).
For extra stability, attach your rack to other racks.
WARNING High leakage current may exist. Ensure secure earth grounding. Ensure site
electrical circuits have reliable earth grounding. Never operate products in any
rack enclosure with the ground connector disconnected. Use only the power
cords with L6-20, L6-30, or IEC-309 connectors provided with the Power
Distribution Units or UPS of your NAS solution to connect to your power source.
Ensure proper PDU installation. HP PDUs are supplied with locking washers that
break through the powder coating of the PDU and the mounting columns on the
rack. Follow all of the installation instructions for the PDUs. Check for proper
grounding between PDU and rack.
Caution Rack-optimized products are sensitive to static electricity. Wear a wrist-strap and
use a static-dissipating work surface connected to the server chassis when
handling printed circuit boards, memory devices, and processor chips or
modules. Ensure that the metal wrist strap contacts your skin and that the alligator
clip is attached to a static-neutral surface.