A data storage device includes a ramp that supports at least one head, and a retraction mechanism that moves the ramp from a non-retracted position to a retracted position. The movement of the ramp is enabled by at least one of expansion or contraction of at least a portion of the retraction mechanism. The data storage device further includes a ramp retraction control module operably coupled to the retraction mechanism. The ramp retraction control module provides the retraction mechanism with a first control signal that causes the retraction mechanism to move the ramp from the non-retracted position to the retracted position.

A data storage system includes a chassis housing multiple data storage devices, such as hard disk drives, a compartment housing cooling fans, and an air plenum positioned between the fans and the storage devices. A multibody chambered acoustic attenuator, which may be installed in the air plenum, includes a plate part having airflow holes therethrough and may include a convex arched part having airflow holes therethrough and coupled with the plate part to form a chamber. Acoustic damping material lines an interior surface of the plate part and the interior and exterior surfaces of the arched part, and the airflow holes of the plate part and of the arched part are not aligned, such that direct acoustic emissions and reflections would contact the acoustic damping material and a circuitous airflow path is provided from the cooling fans to the storage devices, to reduce the acoustic sound pressure upon the devices.

A device for fixing a hard disk is provided, which is arranged in a case and can install multiple hard disks at one time. The device for fixing a hard disk includes fixing brackets and an elastic support member. The elastic support member is arranged between two adjacent fixing brackets. The number of the fixing bracket is even, and the fixing brackets are arranged in symmetry. The hard disk is placed between the elastic support member and one single fixing bracket, which can quickly and conveniently realize the fixing and installation of the hard disk, save a lot of space, and can be arranged in array in the case. The device has high reliability and good shock absorption effects. When the space of the case is limited, the demand of high-density storage configuration can also be achieved.

An example system may comprise a network-attached storage device including a base station having a hardware interface including a drive port and a connectivity port; a modular storage drive attachable to and detachable from the drive port; and a modular wireless adapter attachable to and detachable from the connectivity port. The portable storage device is formable by detaching the modular storage drive and the modular wireless adapter from the hardware interface of the network-attached storage device, and coupling the modular storage drive and the modular wireless adapter to one another via a portable hardware interface. Further, a rechargeable modular power unit is removable from the base station and attachable to and detachable from a power port of the network-attached storage device.

Data associated with storage media utilized by one or more storage systems is received. The data is provided as an input to a machine learning model executed by a processing device. The machine learning model identifies one or more deterministic characteristics from the data. The one or more deterministic characteristics associated with the storage media are received from the machine learning model. A data structure comprising the one or more deterministic characteristics is generated for use in a telemetry process to qualify types of storage media.

A hard disk supporting structure is provided. The hard disk supporting structure includes a hard disk rack, a crawler mechanism, and a motor. The hard disk rack is for disposing at least one hard disk. A crawler of the crawler mechanism is fixedly connected with the hard disk rack. The motor is connected to a driving gear of the crawler mechanism. The motor drives the rotation of the driving gear, to enable the crawler to drive the hard disk rack to move back and forth. The hard disk supporting structure can automatically move the hard disk rack back and forth through a structure with automatic telescopic function, which greatly saves labor, and improves efficiency.

The technology disclosed herein provides a method for generating an on-cylinder limit (OCLIM), the method including performing servo certification of a plurality of drives in a storage device to generate servo adaptive parameters (SAPs) by heads, generating a plurality of read adjust parameters (RAPs) by heads for the plurality of drives, generating an interim OCLIM value based on the SAPs by heads and RAPs by zones, and operating a disc drive write element using the interim OCLIM value.

A data storage system includes a chassis housing multiple data storage devices, such as hard disk drives, a compartment housing cooling fans, and an air plenum positioned between the fans and the storage devices. A multibody chambered acoustic attenuator, which may be installed in the air plenum, includes a plate part having airflow holes therethrough and may include a convex arched part having airflow holes therethrough and coupled with the plate part to form a chamber. Acoustic damping material lines an interior surface of the plate part and the interior and exterior surfaces of the arched part, and the airflow holes of the plate part and of the arched part are not aligned, such that direct acoustic emissions and reflections would contact the acoustic damping material and a circuitous airflow path is provided from the cooling fans to the storage devices, to reduce the acoustic sound pressure upon the devices.

According to one embodiment, a suspension assembly includes a support plate, a wiring member disposed on the support plate, and a head supported on the support plate through the wiring member. The wiring member includes a distal end portion electrically connected to the head, a connection end portion extending outside the support plate, and a plurality of wirings extending between the distal end portion and the connection end portion. The connection end portion includes an opening with predetermined length and width and thirteen or more connection terminals disposed in the opening and arranged at intervals in a direction of the length. A percentage of an area of the opening occupied by areas of the thirteen or more connection terminals is 40% to 65% inclusive.

A data storage device includes a ramp that supports at least one head, and a retraction mechanism that moves the ramp from a non-retracted position to a retracted position. The movement of the ramp is enabled by at least one of expansion or contraction of at least a portion of the retraction mechanism. The data storage device further includes a ramp retraction control module operably coupled to the retraction mechanism. The ramp retraction control module provides the retraction mechanism with a first control signal that causes the retraction mechanism to move the ramp from the non-retracted position to the retracted position.