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Chapter 8. Installation planning 149
Use the following feature codes when you specify the input voltage for your base or
expansion model:
9090 AC input voltage: 200 V to 240 V
9091 AC input voltage: 380 V to 480 V
Power connector requirements
The cable connectors supplied with various line cords, and the required receptacles are
covered in Chapter 4, “Meeting DS8000 delivery and installation requirements” in the
IBM
TotalStorage DS8000 Introduction and Planning Guide,
GC35-0495.
Power consumption and environmental information
When you are planning the power requirements for the DS8000, consider the power
consumption and other environmental points of the storage unit. Table 8-3 provides the power
consumption for various DS8000 models.
Table 8-3 Power consumption for the DS8000 Models
For more information, refer to the Chapter 4,”Meeting DS8000 delivery and installation
requirements” in the
IBM TotalStorage DS8000 Introduction and Planning Guide,
GC35-0495.
8.3.3 Environmental requirements
To properly maintain your DS8000 storage unit, you must install your storage unit in a
location that meets the operating environment requirements.
Take the following steps to ensure that you meet these requirements:
1. Note where the air intake locations are on the models that compose your storage unit.
2. Verify that you can meet the environmental operating requirements at the air intake
locations.
3. Consider optimizing the air circulation and cooling for the storage unit by using a raised
floor, adjusting the floor layout, and adding perforated tiles around the air intake areas.
Fans and air intake areas
The DS8000 models provide air circulation through various fans throughout the frame. You
must maintain the correct operating environment requirements for your models at each air
intake location.
Operating environment requirements
The DS8000 should be maintained within an operating temperature range of 20 to 25
degrees Celsius (68 to 77 degrees Fahrenheit). The recommended operating temperature
with the power on is 22 degrees Celsius (72 degrees Fahrenheit). We strongly recommend
that you avoid running the DS8000, or any disk storage equipment, at temperatures outside
this temperature range.
The humidity range should be maintained between 40% and 50%. The recommended
operating point with the power on is 45%.
Measurement Units Model 921 Model 922 Model 9A2 Expansion
Model 92E
Expansion
Model 9AE
Peak electric power kilovolt amperes
(kVA)
5.5 7.0 7.0 6.0 6.0