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Product Description 15

OceanStor 5300 V3, 5500 V3, 5600 V3, 5800 V3, and 6800 V3 Storage System V300R003

This document introduces the storage system from the aspects of the market position, features, architecture, technical specifications, production configuration, environment requirement, standard compliance, and granted certifications.
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Heat Dissipation and Noise

Heat Dissipation and Noise

A storage system can run steadily using the heat dissipation system carried in its own fan modules. An external device is necessary to remove the hot air discharged from a storage system into the equipment room to ensure proper air circulation.

Heat Dissipation

Traditional heat dissipation modes are as follows:
  • Controller enclosure

    Cooling air enters from the front end through small holes on the interface modules. After dissipating the heat of interface modules, controllers, and power modules, the air is discharged out of its back end by fans. The controller enclosure dynamically adjusts rotational speed of the fans based on the operational temperature of the storage system.

  • Disk enclosure

    Cooling air enters from the front end through the space between disks, passing the midplane, into the power modules and expansion modules. After dissipating the heat, the air is discharged out of its back end by fans. The disk enclosure dynamically adjusts rotational speed of the fans based on the operational temperature of the storage system.

For better maintenance, ventilation, and heat dissipation, pay attention to the following when installing the storage system in the cabinet:

  • To ensure smooth ventilation, the cabinet should be at least 100 cm (39.4 inches) away from the equipment room walls and at least 120 cm (47.24 inches) away from other cabinets (that are in front of or behind).
  • To keep air convection between the cabinet and the equipment room, no enclosed space is allowed in the cabinet. 1 U (44.45 mm or 1.75 inches) space should be left above and below each device.
The airflow parameters of the storage system are shown in Table 7-7.
Table 7-7  Airflow parameters of the storage system

System Airflow

5300 V3

5500 V3

5600 V3

5800 V3

6800 V3

Controller enclosure

  • 192 CFMa (at max. fan speed)
  • 68 CFM (25°C)
  • 220 CFM (at max. fan speed)
  • 83.6 CFM (25°C)
  • 440 CFM (at max. fan speed)
  • 167 CFM (25°C)

2 U disk enclosure

  • 117 CFM (at max. fan speed)
  • 38 CFM (25°C)

4 U disk enclosure

  • 151 CFM (at max. fan speed)
  • 52 CFM (25°C)

4 U high-density disk enclosure

  • 210 CFM (at max. fan speed)
  • 116 CFM (25°C)

a: CFM, Cubic Feet per Minute

The heat dissipation parameters of the storage system are shown in Table 7-8.
Table 7-8  Heat dissipation parameters of the storage system

Maximum Heat Dissipation

5300 V3

5500 V3

5600 V3

5800 V3

6800 V3

Controller enclosure

1904.24 BTUa/h

2640.55 BTU/h

3045.55 BTU/h

3833.72 BTU/h

  • Dual controllers: 4368.72 BTU/h
  • Four controllers: 8092.58 BTU/h

2 U disk enclosure

1100.37 BTU/h

4 U disk enclosure

1985.78 BTU/h

4 U high-density disk enclosure

4265.00 BTU/h

a: BTU, British Thermal Unit.

Noise

The disks and fans make noise when in operation, with fans being the major noise source. The intensity of fan rotation is associated with the temperature. A higher temperature leads to greater rotational speed by the fans, which in return creates greater noise. Therefore, there is a direct correlation between the noise made by a storage system and the ambient temperature in the equipment room.

When the temperature is 25°C, the parameters of the noise generated by the storage system are shown in Table 7-9.

Table 7-9  Noise parameters of the storage system

Device

Noise Power

2 U controller enclosure

65.1 dB

3 U controller enclosure

69.4 dB

6 U controller enclosure

71.0 dB

2 U disk enclosure

67.5 dB

4 U disk enclosure

66.3 dB

4 U high-density disk enclosure

75.4 dB

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Updated: 2019-02-01

Document ID: EDOC1000084184

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