|| List of recent Disk Drive-related patents
| Rebuilding drive data|
A method that includes identifying an inaccessible portion of a first disk drive. The method also includes regenerating data corresponding to the inaccessible portion of the first disk drive and storing the regenerated data to a second disk drive.
| Hybrid hard disk drive having a flash storage processor|
An apparatus is described that is configured to control operations in a hybrid hard disk drive. In an implementation, the apparatus includes a hybrid flash storage processor connected to the host interface that is configured to communicatively couple a flash storage component and to a hard disk integrated circuit chip.
| Portable computer with data storage device|
A portable computer includes a motherboard and an optical disk drive (odd) which itself houses a usb connector. The motherboard includes a south bridge (sb) chip.
| Motor and disk drive apparatus|
A motor for use in a disk drive apparatus includes a bearing, a rotary unit, a stator, a thin flat base member, and a cylindrical holder extending in an axial direction. The base member includes a first through-hole, a peripheral edge portion, and a thin portion.
|Disk drive with distributed codeword blocks|
Disk drives are described in which blocks of data spanning multiple sectors are encoded into a plurality of codewords which are then divided into segments that are physically separated (distributed) on the disk surface over multiple sectors in a distributed codeword block so that the codewords have an improved worst case snr in comparison to individual sectors. This results in more even snr performance for each codeword, which improves the performance for portions of a track which have lower than the average snr.
|Method and system for governing an enterprise level green storage system drive technique|
A method and system for manipulating a spin state of each disk in a drive array is disclosed. In one embodiment, a method includes monitoring input/output (i/o) requests to each disk drive in a disk array and identifying any disk drive as an inactive disk drive based on a number of i/o requests directed to said any disk drive for a given time interval.
|Co-located gimbal-based dual stage actuation disk drive suspensions|
Various embodiments concern a suspension having a dsa structure on a gimbaled flexure. The suspension comprises a loadbeam and flexure attached thereto.
|Magnetic head, head gimbal assembly and disk drive unit with the same, and manufacturing method thereof|
A magnetic head includes a slider substrate having a trailing edge and multiple bonding pads arranged on the trailing edge in a row. Each of the bonding pads includes a seed layer adhered to the trailing edge and electrically connected with the slider substrate, a soldering layer formed on the seed layer and adapted for connecting with a suspension, and at least one solder nonwettable layer adhered to the trailing edge and connected with at least one side of the seed layer.
|Storage device, sweep operation control method and sweep operation control program|
A storage device which includes a plurality of magnetic disk drives has a storage unit that stores, for each of the plurality of magnetic disk drives, information of whether or not the magnetic disk drive is incorporated in a redundant structure, a specifying unit that specifies, among the plurality of magnetic disk drives, a plurality of magnetic disk drives which have a redundant structure on the basis of the information stored in the storage unit, and a control unit that controls, for the plurality of magnetic disk drives specified by the specifying unit, an execution timing of sweep operation in which a head smoothes a lubricant material such that the sweep operation is executed for a single magnetic disk drive at a time.. .
|Motor and disk drive apparatus|
A motor includes a shaft component, an upper plate portion, a lower plate portion, and a sleeve portion. The shaft component includes an inner shaft portion and an outer shaft portion.
|Method and system for hard disk drive throughput optimization using position error signaling|
Systems and methods are provided for throughput optimization of a hard disk drive (hdd) using position error signaling (pes) that includes determining a pes for a hdd mounted in a chassis based on a dynamic disturbance. The method also includes calculating a critical parameter of the pes.
|Hard disk drive module having indicating device|
A hard disk drive module comprises a hard disk drive, a bracket to support the hard disk drive, and an indicating device. The indicating device indicates a working status of the hard disk drive.
|Disk rotating motor and disk drive device provided with the same|
The bracket includes a cylindrical portion extending along the rotary shaft, and a folded portion formed by folding the upper end of the cylindrical portion onto the outer diameter side such that at least a coaxial part of the folded portion extends coaxially along an outer surface of the cylindrical portion. The cylindrical portion and the folded portion are sandwiched by the stator core and the bearing in a radial direction..
|Base plate, and method of manufacturing the same and disk drive including the same|
There is provided a base plate including a body part formed of a metal plate, a pocket part including a recess formed in one surface of the body part by decreasing a thickness of the body part, a center plate part forming the pocket part and corresponding to the recess, a pocket periphery part forming the body part in a periphery of the pocket part, and a pocket edge part formed between the pocket periphery part and the center plate part and having a thickness different from that of the center plate part, wherein a height from a bottom surface of the body part to a top surface of the center plate part is identical to a height of the pocket periphery part, and a thickness of the pocket periphery part is greater than a thickness of the center plate part.. .
|Base assembly and hard disk drive including the same|
There is provided a base assembly including a motor mounting part, and a base body including a disk mounting part coupled to the motor mounting part and having a disk disposed thereon, the disk having data stored therein, and a head seating part formed in a position lower than that of the disk mounting part, wherein the motor mounting part is formed of a non-magnetic material, and the base body is formed of a magnetic material.. .
|Spindle motor having coupling member between base member and core and hard disk drive including the same|
There is provided a spindle motor including: a fluid dynamic pressure bearing assembly; a base member coupled to the fluid dynamic pressure bearing assembly; and a core fixedly coupled to the base member and having a coil wound therearound, wherein the base member has a disk portion and a coupling portion extending from an inner edge of the disk portion upwardly in an axial direction, one surface of the core is in contact with an outer circumferential surface of the overall coupling portion, and an upper end of the coupling portion is protruded upwardly, relative to an upper surface of the core.. .
|Sync mark detection using branch metrics from data detector|
Methods and apparatus are provided for detecting a sync mark in a storage system, such as a hard disk drive. A sync mark is detected in a storage system by obtaining one or more branch metrics from a data detector in the storage system; generating one or more sync mark metrics using the one or more branch metrics from the data detector; and identifying the sync mark based on the sync mark metrics.
|Fly height control for hard disk drives|
A fly height control circuit includes an input node to receive a digital control signal, an output node to output a control current to a resistive heater element to adjust a spacing between a read/write head and a surface of a storage medium, and control circuitry to process the digital control signal and generate the output control current based on the digital control signal. The control circuitry generates a first reference current based at least in part on the control current output from the output node.
|Utilization of disk buffer for background replication processes|
Embodiments of the present invention utilize a hard disk drive buffer to minimize seek delays during background replication of a first volume and fulfillment of application input/output requests. According to one aspect of the present invention, a requested first sector of data is read along with one or more additional sectors of data.
|Computing device and method for installing computer programs in virtual machines|
In a method for installing computer programs in virtual machines of a computing device, one or more virtual hard disk drives are created in a storage device connected to the computing device. Each of the virtual hard disk drives includes one or more computer programs.
|System, method and computer-readable medium for spool cache management|
A system, method, and computer-readable medium that facilitate efficient use of cache memory in a massively parallel processing system are provided. A residency time of a data block to be stored in cache memory or a disk drive is estimated.
|Reliability scheme using hybrid ssd/hdd replication with log structured management|
In one embodiment, a method of managing data includes managing a first copy of data in a solid state memory using a controller of the solid state memory, and managing a second copy of the data in a hard disk drive memory using the controller. In another embodiment, a system for storing data includes a solid state memory, at least one hard disk drive memory, and a controller for controlling storage of data in both the solid state memory and the hard disk drive memory.
|Methods for controlling remote archiving systems|
Embodiments of the present disclosure provide a unique and novel archiving system that includes two or more network storage systems, each network storage system including removable hard disk drives embedded in removable disk cartridges, referred to simply as removable disk drives. The removable disk drives allow for expandability and replacement such that the archiving system need not be duplicated to add new or more storage capacity.
|Temperature detecting device for hard disk drive module|
A temperature detecting device is arranged on a hard disk drive module. The temperature detecting device comprises a temperature detecting unit and a connection unit.
|Magnetic data recording system with mirror image asymmetric magnetic write elements|
A magnetic disk drive system configured for shingled magnetic data recording wherein data tracks are recorded in an overlapping fashion on a magnetic media. The disk drive system includes magnetic write heads that are asymmetric so as to have increased writing at one side of the write head.
|Hard disk drive module having temperature detecting function|
A hard disk drive module comprises a hard disk drive, a bracket, a hard disk drive backplane, and a temperature detecting circuit. The bracket supports the hard disk drive.
|Spindle motor and hard disk drive including the same|
There is provided a spindle motor, including: a shaft having a fixing groove formed in a lower portion thereof; a lower thrust member including a fixing part inserted into the fixing groove, a disk part extending from the fixing part in an outer radial direction, and an extension part extending from the disk part in an axial direction; a base member coupled to the extension part; a rotating member forming a bearing clearance with the shaft and rotatably provided with respect to the shaft; a first sealing part provided between an upper surface of the extension part and the rotating member; and a second sealing part provided between an inner circumferential surface of the base member and an outer circumferential surface of the rotating member.. .
|Spindle motor and hard disk drive including the same|
There is provided a spindle motor including a sleeve rotatably supporting a shaft, a rotor coupled to an upper end of the shaft and rotating together with the shaft, a stopper part coupled to a main wall part protruding from one surface of the rotor and facing an outer peripheral surface of the sleeve, a cover plate coupled to the sleeve while maintaining a clearance between the cover plate and lower portions of the shaft and the sleeve, a base member coupled to the cover plate, and a stator holder fixedly disposed on the base member.. .
|Media topography driven flying height modulation sensing using embedded contact sensor|
Approaches for a flying height control scheme in a hard-disk drive (hdd) device. The flying height control scheme utilizes an embedded contact sensor (ecs) to characterize the topography of a magnetic-recording disk at various flying heights of a head slider over a corresponding disk.
|Disk drive with servo system with timing adjustments to master timer for sam detection errors|
A disk drive is described with a single servo master timer that is used to control timing critical signals such as servo gate, sam windows, channel power save, preamp power save and so on. The master timer is adjusted to compensate for sam detection errors (early, late or missed) and provides improved servo timing quality.
|Hard disk drive control ciruit|
A circuit for a hard disk drive (hdd) includes an indication unit, a hdd connector with a predefined pin, and a jumper coupled between the hdd connector and the indication unit. The jumper includes a base and a jumper block.
|Dummy hard disk drive|
A dummy hard disk drive (hdd) is used to replace a true hdd during testing of a device in which the true hdd will be installed. The dummy hdd includes a box the same size and shape as the true hdd, a cover, and filling material selectively placed in the box.
|Salvaging event trace information in power loss interruption scenarios|
Salvaging event trace information in power loss interruption (pli) scenarios, for use in solid-state drive (ssd) and hard disk drive (hdd) storage devices. If volatile state information that is salvaged after an inadvertent power loss were to include event trace information, then such information can provide a valuable debug resource.
|Method and apparatus for controlling a storage device|
A mass storage device such as a disk drive or ssd (solid state drive) employs optimization logic for reduced power consumption in a host personal electronic device that identifies and prioritizes performance and power trade-offs by considering user expectations, user presence and application responsiveness. The storage device receives commands and information from the host device indicative of user expectations about application invocation, data freshness, and usage patterns, and determines a operational state indicative of behavior settings for reducing power consumption while maintaining the performance constraints required by the user expectations.
|Hard disk drive module having usb interface and electronic device using the hard disk drive module|
A hard disk drive module includes a hard disk drive, a bracket, a hard disk drive backplane, and a usb interface unit. The bracket supports the hard disk drive.
|Co-located gimbal-based dual stage actuation disk drive suspensions with motor stiffener|
Various embodiments concern a gimbaled flexure having a dual stage actuation structure. The flexure comprises a gimbal which includes a pair of spring arms, a pair of struts, and a tongue between the spring arms.
|Hard disk having a squeeze air bearing for rotating a disk|
Approaches to use of a squeeze air bearing for supporting and/or rotating the disks in a hard-disk drive. The squeeze bearing, whose effect is based on relative normal motion between two surfaces, is arranged adjacent to the rim of the disk to provide a bearing force at the disk rim.
|Mass balanced flexure gimbal for head gimbal assembly sway mode control|
Approaches to a mass balanced flexure gimbal assembly for controlling the sway mode of the loadbeam portion of the suspension of a head gimbal assembly (hga) of a hard-disk drive (hdd). The sway mode of concern is that which is excited when a head slider is actuated by a plurality of piezo actuation devices of a secondary actuation system.
|Disk drive write-inhibit control using adaptive pes predictor|
Disk drives are described with a write inhibit control system with an adaptive head position predictor, e. G.
|Cage for hard disk drive and electronic device using the cage|
A cage for hard disk drives includes left and right sidewalls parallel with each other, and a front wall perpendicularly connected between front sides of the left and right sidewalls. A receiving space is bound by the left sidewall, the right sidewall, and the front wall.
|Testing disk drives shared by multiple processors in a supercomputer complex|
According to one embodiment of the present disclosure, an approach is provided in which an interface node selects a logical block address that corresponds to a contiguous memory location located on a storage device that is accessible by multiple interface nodes. The interface node retrieves a logical block address status indicator from a shared memory area and determines, based upon the logical block status indicator, whether the logical block address is utilized by a different interface node.
A method for surveying a data storage subsystem for latent errors before a failing disk drive of the data storage subsystem fails and recovering unreadable data usable to reconstruct data of the failing disk drive. The method includes determining that a disk drive of a plurality of disk drives of the data storage subsystem meets a threshold for being identified as a failing disk drive, and prior to failure of the failing disk drive, surveying at least a portion of the data on the remaining plurality of disk drives to identify data storage areas with latent errors.
|Host computer and method for managing sas expanders of sas expander storage system|
In a method for managing serial attached small computer system interface (sas) expanders using a host computer, the host computer connects to an sas expander storage system through a redundant array of independent disks (raid) card. The sas expander storage system includes a first switch device, a first sas expander, a second sas expander, a second switch, a flash memory, and hard disk drives.
|Low-overhead storage of a hibernation file in a hybrid disk drive|
A hybrid drive and associated methods provide low-overhead storage of a hibernation file in the hybrid hard disk drive. During operation, the hybrid drive allocates a portion of solid-state memory in the drive that is large enough to accommodate a hibernation file associated with a host device of the hybrid drive.
|Optical disk drive and start-up operating method thereof|
A start-up method of an optical disk drive, comprising: starting to accelerate a spindle motor after initializing a digital signal processor; starting an laser diode driver of an optical pickup head after the spindle motor starts accelerating; and starting a servo control of the optical pickup head. During the step of starting the laser diode driver, the spindle motor is accelerating..
|Rack-mount server assembly|
A rack-mount server assembly includes a rack and a server module received in an upper portion of the rack. The server module includes two opposite sliding rails installed in the rack, and a hard disk drive unit detachably attached between the sliding rails.
|Solid state drive with improved enclosure assembly|
The present invention pertains to a hard disk drive form factor compatible solid-state storage device enclosure assembly that protects circuit boards contained within the enclosure from environmental disruption, such as mechanical stress, vibration, external electronic disruption, or any combination of these, while allowing for a variable number of circuit boards in the ssd enclosure. In another embodiment, the solid-state storage device enclosure assembly, or a similar circuit board assembly, includes an alignment guide that precludes a circuit board from being misaligned within the enclosure..
|Emergency power off (epo) island for saving critical data to non-volatile memory|
Approaches for an emergency power off (epo) power island, for saving critical data to non-volatile memory in the event of an epo condition, for use in a hard-disk drive (hdd) storage device. The epo power island includes a controller for detecting an epo condition.
|Spindle motor and hard disk drive including the same|
There is provided a spindle motor including: a shaft including a body portion having a fixing recess formed on a lower portion thereof, a flange portion extending in an outer radial direction from an upper portion of the body portion, and a first insertion portion extending downwardly from the flange portion in an axial direction; a lower thrust member including a fixed portion inserted into the fixing recess, a disk portion extending from the fixed portion in an outer radial direction, and first and second protrusion portions extending from the disk portion in the axial direction; a base member coupled to the second protrusion portion; and a rotating member forming a bearing clearance with the shaft and provided to be rotatable with respect to the shaft.. .
|Spindle motor having enhanced bearing rigidity and increased storage space for lubricating fluid and hard disk drive including the same|
There is provided a spindle motor including: a shaft including a body portion and an extending portion extending from an upper portion of the body portion in an outer radial direction; a sleeve rotatably supporting the shaft; a rotor rotating in conjunction with the shaft and having a stopper portion facing an outer circumferential surface of the sleeve; and a cover plate coupled to the sleeve, while maintaining a gap with lower portions of the shaft and the sleeve, wherein the cover plate includes an airtight portion disposed below the shaft and the sleeve, an inner wall portion extending from the airtight portion in an axial direction and coupled to an outer circumferential surface of the sleeve, an outer wall portion coupled to a base member, and an upper wall portion connecting an upper end of the inner wall portion and an upper end of the outer wall portion.. .
|System, method and apparatus for data track usage sequence to reduce adjacent track interference effect|
Storing data in a hard disk drive may include determining a percentage of storage usage (su %) of the data tracks. If the su % is less than a first threshold percentage (tp1), the method may include storing data to nth data tracks.