HP 3PAR StoreServ 10000 Storage Physical Planning Manual
Table 5 Recommended Access Areas for HP 3PAR Cabinets
Access Area During OperationCabinet Surface
36 in (91.4 cm)Front
30 in (76.2 cm)Rear
NoneLeft and right sides
NOTE: HP 3PAR cabinets do not require side access during operation. However, during
installation, one side of the cabinet must be removed to access the PDU power cords.
Meeting Environmental Conditions
It is recommended that you maintain a controlled environment requiring a high degree of cleanliness,
close control of temperature and humidity, and infrequent personnel access.
CAUTION: The storage system operating environment must be free from continuous vibration
and from dust and other environmental contaminants.
In addition, the operating site must comply with the following environmental specifications:
Table 6 Environmental Specifications for HP 3PAR Storage Systems
ValueSpecification
Altitude
0 –10,000 ft (3,048 m)Operating
0 –40,000 ft (12,192 m)Nonoperating
Ambient temperature
50 –104° F (10–40° C)Operating
0–3,000 ft (914.4 m)
50 –95° F (10 –35° C)
3,000–10,000 ft (914–3,048 m)
–40 –203° F (–40– 95° C)Nonoperating
0–40,000 ft (0–12,192 m)
Temperature gradient
18° F/hr (10° C/hr)Operating
18° F/hr (10° C/hr)Nonoperating
20 – 80 percent noncondensing, maximum gradientRelative humidity
10 percent per hour
Maintaining the Optimal Temperature
The level of cooling required for the HP 3PAR Storage systems is quite different from the
air-conditioning used in offices. Comfort air-conditioning systems are designed for the lower heat
and higher moisture generated by the human body. In contrast, equipment has high heat output
that is moisture-free (sensible heat). In comfort systems, sensible heat normally produces 60 to 70
percent of the load, whereas the dry heat of electronic equipment produces a sensible heat ratio
of over 95 percent.
Prior to installation, verify that the operating site is equipped with a cooling system that can support
all thermal emissions. Use the average and maximum thermal emissions of storage server components
Meeting Environmental Conditions 25