IBM DS8000 Environmental requirements, Power connector requirements, Fans and air intake areas

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 8-3provides the power consumption for various DS8000 models.

Table 8-3 Power consumption for the DS8000 Models

Measurement	Units	Model 921	Model 922	Model 9A2	Expansion	Expansion
					Model 92E	Model 9AE
Peak electric power	kilovolt amperes	5.5	7.0	7.0	6.0	6.0
	(kVA)

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%.

Chapter 8. Installation planning 149