HP 3PAR StoreServ 10000 Storage Physical Planning Manual

Voltage Spikes
The HP 3PAR Storage systems are tested to comply with the EN 61000-45 standard.
Installing a lightning protection device on the server room power source is recommended when
the following conditions exist:
• The primary power is supplied by an overhead power service.
• The utility company installs lightning protectors on the primary power source.
• The area is subject to electrical storms or an equivalent type of power surge.
Electrostatic Discharge
Storage systems are susceptible to failure due to Electrostatic Discharge (ESD). Electrostatic charges
can accumulate on people and furniture because of direct contact with floor coverings or movement
while in contact with furniture coverings. Discharge of static electricity to a metal surface on server
cabinets can interfere with the system’s operation and cause discomfort to anyone who comes in
contact with it.
Some factors that contribute to electrostatic discharge are:
• High-resistance floor covering
• Carpeting without anti-static properties
• Low humidity (less than 20 percent)
The HP 3PAR StoreServ 10000 Storage is tested to comply with the EN 61000-45 standard.
Branch Circuits
The individual panel branch circuits should be protected by suitable circuit breakers properly rated
according to manufacturer specifications and applicable codes. Each circuit breaker should be
labeled to identify the branch circuit it is controlling. The receptacle should also be labeled. See
“Power and Heat Specifications” (page 40) to plan on the appropriate circuit breaker maximum
for your system.
Emergency Power Control
As a safety precaution, you might consider providing emergency power-off controls for disconnecting
the main service wiring that supplies storage systems. Install these controls at a convenient place
for the operators and next to the main exit doors of the room after checking local electrical codes
for further guidelines.
Redundant Power
The HP 3PAR StoreServ 10000 Storage cabinets support redundant power within the system through
the use of redundant PDUs and redundant power supplies.
As shown in Figure 32 (page 50) through Figure 31 (page 49), front and rear views, power
domains within the HP 3PAR StoreServ 10400 and 10800 are distributed between the upper and
lower halves of the cabinet.
Voltage Spikes 43