A method for making a hard disk drive is disclosed. The method includes forming a base deck comprising an aluminum alloy via vacuum casting. The method further includes subjecting the base deck to hot isostatic pressing. The method further includes welding a cover to the base deck.

Provided herein is an apparatus including a disk drive base, wherein the disk drive base includes a first metal composition with a first CTE (coefficient of thermal expansion). A disk drive cover is attached to the disk drive base, wherein the disk drive cover includes a second metal composition with a second CTE that are different from the first metal composition and the first CTE. An arm is connected to a reader and a writer, wherein the arm is coupled to the disk drive base, the reader and the writer are separated by a distance, and the distance affects an MR (magnetoresistive) offset. In response to temperature changes between 0 C. and 60 C., the first material and the second material expand and contract comparably and proportionally. In further response to the temperature changes between 0 C. and 60 C., a change in the MR offset is less than 10% or a preferably defined range of a track pitch on a recording medium attached to the disk drive base.

A data storage library includes an array of drive slots each configured to receive a data storage drive therein. The data storage library also includes a nozzle for creating an air curtain across a front of the array of drive slots and a fan for creating an airflow through the nozzle. A method includes selectively instructing a fan to create an airflow through a nozzle for creating an air curtain across a front of an array of drive slots in the data storage library. A computer program product is configured to perform the foregoing method.

According to one embodiment, a disk device includes a housing including a bottom wall including a protrusion with a first surface, a recording medium arranged in the housing, a printed circuit board attached to the bottom wall, an electronic component mounted on the printed circuit board and including a second surface facing the first surface, and a radiation sheet including a third surface which is contact with the first surface, and a fourth surface which is in contact with the second surface. An area of the first surface is less than an area of the third surface of the radiation sheet, or an area of the second surface is less than an area of the fourth surface of the radiation sheet.

Embodiments of the present disclosure relate to an enclosure for a disk array. The enclosure comprises a chassis for receiving the disk array. Each disk in the disk array is enclosed by a frame. The enclosure also comprises a heat sink including a plurality of metal bars arranged on a bottom face of the chassis. Each of the plurality of metal bars is adapted to contact a respective disk through a notch in the frame of the respective disk, to position the respective disk and to transfer heat generated by the respective disk to the chassis. In the embodiments of the present disclosure, the metal bars may be used not only for reliable positioning of the disks, but also for improving thermal dissipation performance.

The ventilation efficiency is improved while exposure of a part disposed at the inner side of an electronic apparatus is suppressed. An electronic apparatus has a first shielding portion and a second shielding portion disposed behind a circuit board. The first shielding portion and the second shielding portion are juxtaposed in an upward and downward direction. Further, the first shielding portion and the second shielding portion are disposed in a displaced relationship from each other in a forward and rearward direction, and a first exhaust port is provided between the first shielding portion and the second shielding portion.

A data center may include a tape library rack module along with rack computer systems. The rack computer systems may be configured to provide computing capacity within a data center environment. In some embodiments, the tape library rack module may include an enclosure encompassing an interior of the tape library rack module, a rack within the interior, and a tape library unit mounted on the rack. The tape library rack unit may include tape cartridges configured to store data within a tape environment that is different than the data center environment. The tape library rack unit may be within a portion of the interior that is enclosed such that it is environmentally isolated from the data center environment. In some examples, the tape library rack module may include a cooling unit and/or a humidifier unit, which may provide the tape environment to the environmentally isolated portion of the interior of the tape library rack module.

An electronic device according to an embodiment of the present disclosure includes a printed circuit board (PCB), a first component disposed in a first region on the PCB and a second component disposed in a second region on the PCB, and a chamber disposed on the first and second components and having a region including the first and second regions, in which fluid absorbing heat radiating from the first and second components is included in the chamber.

A hard disk drive comprises a sensor configured to detect a mixing ratio within the hard disk drive and a membrane electrode assembly. The membrane electrode assembly comprises a gas flow path that couples an inside of the hard disk drive to an outside of the hard disk drive, and the gas flow path includes a cathode and anode that electrolytically remove water vapor from the inside of the hard disk drive. The drive further includes an energy source coupled to the membrane electrode assembly and a controller coupled to the sensor and the energy source. The controller is configured to activate the energy source in response to the sensor detecting a mixing ratio greater than a threshold mixing ratio and to deactivate the energy source in response to the sensor detecting a mixing ratio less than the threshold mixing ratio.

The disclosure provides a hard disk drive chassis including a main body, fasteners and an engagement component. The main body is configured to be installed on a tray. The main body has two support surfaces and fixing structures. The two support surfaces face a same direction and are configured to support a hard disk drive, and the fixing structures are respectively disposed on the two support surfaces. The fasteners are respectively configured to be disposed through the fixing structures so as to be fixed to the hard disk drive. The engagement component is pivotably disposed on the main body and pivotable between an engaged position and a released position. When the engagement component is in the engaged position, the engagement component is configured to be engaged with the tray. When the engagement component is in the released position, the engagement component is configured to be disengaged from the tray.