摘要:
A liquid cooling apparatus for use in a disk array apparatus which contains a plural number of units having a disk drive inside of a housing and disposed within a rack, including an air-blow fan, a pump for transmitting liquid coolant, a radiator for transmitting heat absorbed into the liquid coolant into outside air, and pipes for connection of the pump and radiator. The liquid cooling apparatus further includes a temperature sensor disposed at a position for detecting temperature of the liquid coolant, which temperature changes in response to electric power consumed within the plural number of disk drives, and a rotation speed of the pump is controlled in dependence upon a detection signal from the temperature sensor.
摘要:
In this invention, the CPU of a NAS board, which is liable to become hot, is cooled by concentrating a larger amount of air onto a heat sink. A plurality of logic circuit boards 3 are mounted on a control section 1D of a disc array device 1. The circuit component 4A for realizing the NAS function, liable to become hot, is provided with a heat sink 5. The aperture of the main air inlet section (Wb) is covered with a top plate 8. Airflow guidance sections (Wa, Wc) are respectively provided on both sides of the main air inlet section. Since the fin pitch of the airflow guidance sections is set narrow, the air inflow resistance (airflow resistance) of these is higher than that of the main air inlet section. Due to this difference in airflow resistance, the air in the vicinity of the airflow guidance sections is guided into the main air inlet section. The top plate 8 prevents outflow of air that has flowed into the main air inlet section to outside the heat sink 5.
摘要:
A disk array system includes a plurality of disk drives and at least one unit box including the plurality of disk drives aligned in the thickness direction of the disk drive, each disk drive including a thin case accommodating a recording disk, a read/write head, and a driving mechanism for driving the recording disk and the read/write head, and a control board for controlling the driving mechanism, the control board being mounted on the thin case. In the disk array system, the thin case and the unit box are composed of a thermally-conductive material, the unit box includes surfaces parallel to the thickness direction of the plurality of disk drives, and at least one of the surfaces has a cold plate filled with a refrigerant. Heat generated at the disk drives is transferred to the cold plate, thereby improving cooling performance.
摘要:
A disk array system includes a plurality of disk drives and at least one unit box including the plurality of disk drives aligned in the thickness direction of the disk drive, each disk drive including a thin case accommodating a recording disk, a read/write head, and a driving mechanism for driving the recording disk and the read/write head, and a control board for controlling the driving mechanism, the control board being mounted on the thin case. In the disk array system, the thin case and the unit box are composed of a thermally-conductive material, the unit box includes surfaces parallel to the thickness direction of the plurality of disk drives, and at least one of the surfaces has a cold plate filled with a refrigerant. Heat generated at the disk drives is transferred to the cold plate, thereby improving cooling performance.
摘要:
In this invention, the CPU of a NAS board, which is liable to become hot, is cooled by concentrating a larger amount of air onto a heat sink. A plurality of logic circuit boards 3 are mounted on a control section 1D of a disc array device 1. The circuit component 4A for realizing the NAS function, liable to become hot, is provided with a heat sink 5. The aperture of the main air inlet section (Wb) is covered with a top plate 8. Airflow guidance sections (Wa, Wc) are respectively provided on both sides of the main air inlet section. Since the fin pitch of the airflow guidance sections is set narrow, the air inflow resistance (airflow resistance) of these is higher than that of the main air inlet section. Due to this difference in airflow resistance, the air in the vicinity of the airflow guidance sections is guided into the main air inlet section. The top plate 8 prevents outflow of air that has flowed into the main air inlet section to outside the heat sink 5.
摘要:
In a cooling structure for use in a disk array apparatus, having boxes 27, each containing disk drives 26 therein by a lager number thereof, in each of the unit housings 114 are provided a air-blow fan 33, and also a liquid cooling system having a pump 107 for transmitting a liquid coolant, a radiator for discharging heats absorbed within the liquid coolant into an outside air, and pipes 101 for connecting those, etc., wherein a rotation speed of the pump is detected by a temperature sensor 120 attached on the pipe in the vicinity of an inlet of the radiator, thereby changing it depending on the temperature detected. With this, it is possible to achieve an improvement on cooling performances of the disk drives, which are contained within the housing of the disk array apparatus, and also to reduce an increase of temperature of the disk drives and unevenness in temperature among the disk drives, thereby enabling an improvement on the reliability and long lifetime of the disk drives and the cooling system thereof.
摘要:
Provided is a disk array device or an electronic device having an enhanced cooling performance with lower noises. The disk array device has doors in the front side and in the rear side of the device, each of the doors is formed with outside openings which are louver-like or bend-like, the louver- or bend-like openings in the doors being directed in directions which are opposite to each other between the door on the suction side and the door on the exhaust side.
摘要:
A disk array apparatus including a rack-shaped basic frame, and a plurality of disk boxes that can be inserted into and pulled out of the basic frame depth-wise. Each disk box has: disk drive connectors for connecting a plurality of disk drives arranged in a matrix on a platter substrate, which is the bottom face of the disk box, roughly parallel to the depth direction of the basic frame; and a cooling module for cooling the disk drives. The disk box is a hermetically sealed structure.
摘要:
In a disk array apparatus, by taking note of a first sound of a specific frequency which is a noise element of original sounds generated from a fan, a second sound whose phase is inverted to that of the first sound is generated by a structure of a cooling air flow path passing through the fan, and the second sound is synthesized with the first sound on the cooling air flow path, thereby reducing the noise. For example, an exhaust duct is located on a fan unit in an upper part of the apparatus, two flow paths extending to an exhaust port are formed in an internal structure of the exhaust duct, and the two flow paths are designed so that the difference in the flow path length therebetween becomes equivalent to half wavelength of the specific frequency.
摘要:
The object of the invention is to provide a disk array system and electronic apparatus capable of both excellent cooling of heat generating members and reduction of noise from the apparatus. A disk array system accommodates a plurality of disk drives 2 and has a controller 6 for controlling the disk drives 2. A refrigeration cycle system is formed with a compressor 10, a radiator 12, an expansion valve 9 and a cold plate 7. The controller 6 is cooled by the refrigeration cycle system. Two-phase refrigerant coming out from the expansion valve 9 collides with a heat receiving surface of the cold plate 7.