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162 results about "Disks (device)" patented technology
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Method and system for realizing USB flash disk equipment interaction based on flash memory encryption technology
ActiveCN120974552ADigital data protectionInternal/peripheral component protectionDisks (device)Access control matrix
The invention relates to the technical field of cores, and discloses a method and a system for realizing USB flash disk equipment interaction based on a flash memory encryption technology, which comprises the following steps of: dividing an encryptable data block of a flash memory controller, and determining a dynamic entropy weight of the encryptable data block by utilizing an equipment interaction instruction and a random noise characteristic signal; generating a self-adaptive key generation sequence capable of encrypting data blocks through an address allocation mode and a dynamic entropy weight of a flash memory controller; calculating a side channel leakage risk index of the flash memory controller, and setting a security level label of an encryptable data block in combination with a self-adaptive key generation sequence; the method comprises the following steps: setting a differentiated security protection mechanism of an encipherable data block by constructing an access control matrix of the encipherable data block and an encryption risk area of a flash memory controller; and generating a secure interaction scheme of the USB flash disk equipment based on the self-adaptive key generation sequence in combination with the differential security protection mechanism and the access control matrix. According to the invention, the interaction safety and reliability of the USB flash disk equipment can be improved.
Owner:SHENZHEN LINGCHUANG IND CO LTD
Disk device with filters arranged in filter unit configurations
According to one embodiment, a disk device includes a magnetic disk, a housing, a first filter unit, and a second filter unit. The housing is provided with an internal space and is provided with a first through hole. The first filter unit includes a first case with a first accommodation space which is in communication with the first through hole, a first adsorbent in the first accommodation space, and a first filter. The first accommodation space is in communication with the internal space through the first filter. The second filter unit includes a second case with a second accommodation space which is separated from the first accommodation space, a second adsorbent in the second accommodation space, and a second filter. The second accommodation space is in communication with the internal space through the second filter.
Owner:KK TOSHIBA +1
Backup method and device based on NBD mapping
The invention discloses a backup method and device based on NBD mapping, and relates to the technical field of system backup, and the method specifically comprises the following steps: receiving a system backup instruction; identifying protection object parameters in the system backup instruction to obtain a to-be-reconstructed disk list; in the target medium, creating a corresponding virtual disk device for each physical disk in the to-be-reconstructed disk list based on NBD mapping; based on the to-be-reconstructed disk list and the collected data of the to-be-backed-up host, performing partition table structure reconstruction on the virtual disk device to obtain a virtual disk partition device and a virtual volume device; determining a corresponding relationship between the volume on the host to be backed up and the virtual disk device, the virtual disk partition device and the virtual volume device to obtain a mapping relationship table; and determining a volume set to be backed up based on the mapping relation table. According to the method, the concurrent backup capability is enhanced, and compared with an existing system backup mode, the resource consumption can be reduced, the backup efficiency can be improved, and the data verification time can be shortened.
Owner:ANHUI PROVINCIAL HOSPITAL +1
Multi-thread IO speed limiting method and device, electronic equipment and storage medium
According to the IO speed limiting method and device under multiple threads, the electronic equipment and the storage medium provided by the embodiment of the invention, the technology realizes speed limiting of the IO request through a quota isolation and critical point synchronization mechanism, and effectively avoids frequent scrambling of a lock at the same time. The core process of the method comprises the following steps: when a client issues an IO request, reading a current value of a speed limit counter, and calculating an available space in combination with a preset speed limit quota and an instantaneous issuing space; when the request quantity does not exceed the available space, directly releasing the request to disk equipment and updating a statistical value; and if the request quantity exceeds the available space, safely accessing the quota management pool through the thread lock, obtaining a target speed limit quota from the global IO request speed limit quota, and temporarily improving the instantaneous issuing space to process the excess request. According to the design, the threads can operate autonomously within the quota through quota independent distribution, lock competition is not needed, meanwhile, synchronous operation is strictly limited in a critical scene of quota application, the lock scrambling frequency is greatly reduced, and therefore IO performance is remarkably improved.
Owner:BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD +2
Disk device with wiring board on outer surface of housing and connected to motor and sealing configuration
ActiveUS12525259B2Apparatus for flat record carriersCarrier constructional parts dispositionCircular discDisks (device)
According to one embodiment, a disk device includes a housing with a bottom wall, magnetic disks supported on a hub of a motor, a printed circuit board provided on an outer surface of the bottom wall, and a wiring board attached on the outer surface of the bottom wall. The bottom wall includes a recess formed in the outer surface, a step located on border between the outer surface and the recess, and through holes opened to the recess. The wiring board includes one end portion disposed in the recess and connection pads on the one end portion, connected to lead wires of a coil. An adhesive is filled into the recess and the through holes, and covers the one end and a solder joint and seals the through holes.
Owner:KK TOSHIBA +1
Data demodulation method and apparatus for hard disk log, data modulation method and apparatus for hard disk log, and device and medium
PCT designated stageWO2025200600A1Hardware monitoringEnergy efficient computingData packDisks (device)
The present application relates to the technical field of hard disk monitoring. Disclosed are a data demodulation method and apparatus for a hard disk log, a data modulation method and apparatus for a hard disk log, and a device and a medium. The demodulation method is applied to a baseboard management controller, and comprises: receiving level signals transmitted by state indication pins of a hard disk device, wherein the level signals are signals obtained by the hard disk device performing modulation on the basis of a hard disk log, and original state output signals of the state indication pins; identifying demodulated data corresponding to each target rectangular-wave signal among the level signals; and on the basis of the demodulated data, determining a valid data packet. In the present application, out-of-band monitoring of a hard disk device is realized by means of state indication pins of the hard disk device directly outputting hard disk log data to a baseboard management controller, and thus the problem in a conventional hard disk out-of-band monitoring scheme of it being difficult to realize out-of-band monitoring of a hard disk due to an out-of-band management system not having permission to access hard disk data is solved, thereby expanding the range of hard disk devices that can be subjected to out-of-band monitoring by a baseboard management controller.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD
Hot plug structure of hard disk device
Owner:HEFEI SHENZHOU KUNTAI INFORMATION TECHNOLOGY CO LTD
Access processing method and computer device
PendingUS20250390224A1Input/output to record carriersSoftware simulation/interpretation/emulationDisks (device)Engineering
Embodiments of the present disclosure provide an access processing method and a computer device. Determining a corresponding storage node from a network storage system according to a file directory that a virtual machine requests to access; creating a first virtual drive device in a physical host and controlling the first virtual drive device to connect with the storage node; where the file directory is configured to be mounted to a target directory of the virtual machine through a second virtual drive device, so that the virtual machine accesses the file directory from the storage node through the target directory based on the first virtual drive device and the second virtual drive device; the second virtual drive device corresponding to the first virtual drive device is created in the virtual machine and synchronously obtains the file directory from the first virtual drive device.
Owner:CLOUD INTELLIGENCE ASSETS HOLDING (SINGAPORE) PTE LTD
Apparatus and system for solid state drive device debugging
The present invention relates to a device and a system for debugging a solid state disk device, the device comprising: a joint test action group add-on board; and a Raspberry Pi. The Raspberry Pi comprises a general purpose input output interface coupled to the joint test action group add-on board; and a processing unit coupled to the general purpose input output interface. The processing unit is configured to emulate a plurality of joint test action group commands to the solid state disk device through the general purpose input output interface to dump data generated by the solid state disk device during runtime of the solid state disk device. Using the device as described above can reduce the cost required to debug the solid state disk device.
Owner:SILICON MOTION INC
Methods for setting disk devices and refresh thresholds
This invention provides a disk device capable of improving performance and data reliability, and a method for setting refresh thresholds. The disk device of this embodiment includes: a disk having a first track; a head having a heater for writing data to the disk and reading data from the disk; and a controller for setting variations in parameters associated with write processing to the disk within one cycle of the first track, such that variations in evaluation metrics corresponding to write / read processing characteristics are suppressed within one cycle of the first track.
Owner:KK TOSHIBA +1
Disc device, control method of disc device, and program
ActiveCN115910124BUsing non-detectable carrier informationRecord information storageDisks (device)Logical block addressing
Provided is a disk device, a control method for a disk device, and a program, which enable a rotational latency to be minimized to access a next logical block address (LBA) regardless of which head is used for access in a disk device having a plurality of heads. The disk device of an embodiment includes a storage unit that stores a table in which a track skew value for each head is stored, and a control unit that reads out a track skew value corresponding to a head that is an object of operation from the table and performs track control.
Owner:KK TOSHIBA +1
Method of manufacturing a disc device and program product
A method and procedure for manufacturing a disk device capable of improving head positioning accuracy in a disk device controlled by multi-rate actuators using two-stage actuators are provided. In this embodiment, before applying an additional MA filter, a test signal is applied at 1 / N cycles to measure the head position error spectrum and frequency characteristics for both the VCM and MA operation values. Based on the frequency characteristics, a multi-rate sensitivity characteristic is calculated, and the frequency to be corrected by the MA filter is determined based on the head position error spectrum and the multi-rate sensitivity characteristic. Furthermore, with each candidate of a plurality of MA filter candidates applied, a test signal is applied at 1 / N cycles to measure the frequency characteristics for both the VCM and MA operation values. Based on the frequency characteristics, a multi-rate sensitivity characteristic is calculated, and the candidate with the lowest head position error and a peak value of the multi-rate sensitivity characteristic below a threshold is selected as the MA filter to be used.
Owner:KK TOSHIBA +1
Disk device and recording method
ActiveUS12602188B2Filamentary/web carriers operation controlInput/output to record carriersDisks (device)Record
A disk device is controlled using system data. The disk device includes a disk, a non-volatile memory, and a controller. The controller is configured to record a set of system data on both the non-volatile memory and the disk.
Owner:KK TOSHIBA +1
Disk device
PendingUS20260179650A1Disposition/mounting of recording headsRecord information storageDisks (device)Flexible electronics
A disk device according to an embodiment includes a magnetic disk, a magnetic head, a flexible printed circuit board, and an electronic component. The flexible printed circuit board includes a first insulating layer, a first conductive layer on a first face of the first insulating layer, a second conductive layer on a second face of the first insulating layer, a second insulating layer covering the second face and the second conductive layer, and a first adhesive layer bonding the second insulating layer to the second face and the second conductive layer. The first conductive layer includes a first land. The second conductive layer includes a first part with first through holes, the first part overlapping the first land through the first insulating layer. The first adhesive layer adheres to the second face through the first through holes. The electronic component includes a first pin joined to the first land.
Owner:KK TOSHIBA +1
Magnetic disk device
A high-performance disk device is provided. A disk device according to an embodiment includes a disk, a head, and a controller. The disk includes a plurality of servo sectors arranged in a circumferential direction, each of the plurality of servo sectors having servo information written therein, the servo information including a postamble indicating an RRO correction amount, i.e., a repeatable runout correction amount. The head performs data writing to and data reading from the disk. The controller uses a second RRO correction amount different from a first RRO correction amount based on an RRO correction amount indicated by a first postamble, in a case where a read error of the first postamble occurs continuously in positioning control of the head, the first postamble being a postamble of a first servo sector of the plurality of servo sectors.
Owner:KK TOSHIBA +1
Disk device and command management method
According to one embodiment, there is provided a disk device including a disk medium, a memory and a controller. On the disk medium, data is recorded according to an address. The controller generates or updates a database and stores the database in the memory as a command including the address is received. The database is associated with address ranges of commands, and includes a tree-like array in accordance with command addresses and time series. The controller manages commands using the database.
Owner:KK TOSHIBA +1
Disk device
According to one embodiment, a disk device includes a coil motor that pivots an actuator assembly around a support shaft extending in a first direction. The actuator assembly has a first center axis passing through the center between a pair of bearings and perpendicular to the support shaft. The coil motor includes a lower magnet and an upper magnet, and a voice coil fixed to the actuator assembly and located between the lower magnet and the upper magnet. The voice coil has a coil center axis that extends parallel to the first center axis through the center of the first direction, and is arranged at a height position where the coil center axis is offset in the first direction with respect to the first center axis.
Owner:KK TOSHIBA +1
Method of manufacturing disk device, and disk device
Owner:KK TOSHIBA +1
Hard disk batch firmware upgrading method and system based on MCTP over SMBus
The invention discloses a hard disk batch firmware upgrading method and system based on MCTP over SMBus, and belongs to the technical field of computer hardware management. According to the method, firstly, identity authentication is completed through security verification of a firmware mirror image and a hard disk to be upgraded, then the mirror image is divided into data packets with unique identifiers for broadcast transmission, after a preset data unit is sent, a unicast mode query state is switched, a global state table is established, missing data packets are broadcasted and retransmitted in a targeted mode according to information in the table, and confirmation is carried out. Finally, the instruction hard disk verifies the mirror image in parallel and then uniformly activates the new firmware; the system comprises a BMC module, a plurality of hard disk devices and an SMBus network. According to the scheme, broadcast and unicast advantages are fused, batch upgrading efficiency is improved, transmission integrity and upgrading reliability are guaranteed, safety and manageability are enhanced, existing standard protocols and hardware interfaces are adapted, and practicability is high.
Owner:HUAKUN ZHENYU INTELLIGENT TECHNOLOGY INTERNATIONAL CO LTD +1
Magnetic disk device
According to one embodiment, a magnetic disk device includes a first disk having a first data track and a second data track, a first write head, a write processing unit, an error correction unit, a correction limit prediction unit, and a determination unit. During a write period, the correction limit prediction unit calculates an excess amount, calculates a metric value by multiplying a first weight coefficient by the excess amount, updates a cumulative metric value, and generates first prediction information. The determination unit determines whether or not to allow the write processing unit to continue write processing for the second data track based on the first prediction information.
Owner:KK TOSHIBA +1
Disk device
PendingCN121704763AInput/output to record carriersError detection/correctionDisks (device)Engineering
The embodiment of the invention provides a disk device capable of properly managing information stored in a non-volatile memory. In a disk device of the present embodiment, a controller can access a non-volatile memory. The non-volatile memory has an error correction circuit and a memory region. The memory region includes a first region, a second region, and a third region. The first region includes a plurality of blocks. When a first block among the plurality of blocks includes a bit capable of correcting an error in an error correction process by the error correction circuit, the controller stores information of the first block in the second region in place of the first region, creates or updates address replacement information, and stores the information in the third region. In the address replacement information, the address of the first block in the first region and the address of the first block in the second region are associated.
Owner:KK TOSHIBA +1
Disk drive
PendingJP2026049483ACarrier constructional parts dispositionDisposition/mounting of recording headsDisks (device)Mechanical engineering
Owner:KK TOSHIBA +1
Magnetic disk drive
PendingJP2026057085ATrack finding/aligningRecord information storageDisks (device)Control engineering
To provide a magnetic disk device capable of suitably performing rewrite operations caused by ATI (Automatic Time Indicator). [Solution] The controller performs an addition to the value of a counter corresponding to a neighboring memory area of one of the multiple memory areas in response to a write operation. The rewrite operation includes a seek operation, a stabilization operation that waits for the residual vibration of the magnetic head to decay, and rewriting all the data of the first memory area to the first memory area after the stabilization operation. The controller decrements the value of the counter corresponding to the first memory area among the multiple counters in response to the rewrite operation. The controller performs an addition to the value of the counter corresponding to the second memory area among the multiple counters in response to the rewrite operation. The stabilization operation includes an operation that determines whether the stabilization operation is complete based on whether a first condition is met. The first condition differs depending on the trigger for executing the retry operation.
Owner:KK TOSHIBA +1
Suspension assembly and disk device
ActiveUS20250316287A1Electrical connection between head and armAlignment for track following on tapesDisks (device)Structural engineering
According to one embodiment, a suspension assembly includes a wiring member. The tail connector of the wiring member includes a base layer, a cover layer, and a conductive layer interposed between the base layer and the cover layer. The cover layer includes a groove. The conductive layer includes a first wire, a second wire, and a connection terminal extending between the first wire and the second wire across the groove. The base layer includes a first base covering the first wire, a second base covering the second wire first protrusion pair protruding from the first base to partially cover the connection terminal, and second protrusion pair protruding from the second base to partially cover the connection terminal.
Owner:KK TOSHIBA +1
disc device
An embodiment of the present invention provides a disk device capable of suppressing peeling of a flexible printed circuit board. A disk device of one embodiment has a magnetic disk, a magnetic head, a first flexible printed circuit board, and a second flexible printed circuit board. The first flexible printed circuit board has a plurality of first terminals. The second flexible printed circuit board has a surface, a plurality of second terminals provided on the surface and joined to the plurality of first terminals by a joining body, and a first planar ground layer covering at least one of the plurality of second terminals in a direction orthogonal to the surface. The plurality of second terminals include a first read terminal. The first planar ground layer is separated from at least a portion of the first read terminal in a direction along the surface.
Owner:KK TOSHIBA +1
Remote disk equipment access method and device, computer equipment, medium and product
The invention discloses a remote disk equipment access method and device, computer equipment, a medium and a product, and relates to the technical field of data storage. The method comprises the following steps: entering a connection waiting state during starting, and monitoring a connection request of a client disk host; establishing connection with the disk host in response to the connection request, entering a request waiting state after successful connection, and monitoring an operation request of the disk host; executing disk operation on local physical disk equipment in response to the operation request, and returning to the request waiting state after the operation is completed; in the request waiting state, if it is detected that the physical disk device has a state change, reporting change information to the disk host, and returning to the request waiting state after reporting is completed. Decoupling of the network state, the equipment state and the service state is achieved, resource waste and response delay are reduced, and reliability and recovery efficiency of remote storage access are remarkably improved.
Owner:BEIJING YIHUI INFORMATION TECH CO LTD
Method for acquiring hard disk log, method for sending hard disk log, apparatus, device, and medium
PCT designated stageWO2025200509A1Hardware monitoringEnergy efficient computingComputer hardwareDisks (device)
The present application relates to the technical field of hard disk monitoring, and discloses a method for acquiring a hard disk log, a method for sending a hard disk log, an apparatus, a device, and a medium, the method for acquiring is applicable to a baseboard management controller, and comprises: receiving a level signal outputted by a hard disk read / write state indication pin of a hard disk device, the level signal being obtained by modulating a hard disk read / write state and a hard disk log of the hard disk device; identifying pieces of demodulation data respectively corresponding to target square wave signals in the level signal; and, on the basis of the demodulation data, acquiring the hard disk log of the hard disk device. According to the present application, the hard disk read / write state indication pin of the hard disk device directly outputs the hard disk log to the baseboard management controller, so as to achieve out-of-band monitoring on the hard disk device, thus solving the problem of difficulty in achieving out-of-band hard disk monitoring caused by a lack of permissions for an out-of-band management system to access hard disk data in a traditional out-of-band hard disk monitoring solution. Hence, the range of hard disk devices on which the baseboard management controller can perform out-of-band monitoring is widened, and the difficulty in out-of-band monitoring on the hard disk device is reduced.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD
Magnetic disk device and method
ActiveUS12475925B2Record information storageRecording on magnetic disksComputer hardwareDisks (device)
According to one embodiment, a memory of a magnetic disk device includes a plurality of control queues respectively corresponding to a plurality of actuator systems. A controller receives a plurality of first commands from a host, and stores the plurality of first commands in one of the plurality of control queues. The controller generates a second command for internal processing, and stores the second command in a first control queue that stores a smallest number of commands among the plurality of control queues. The controller executes, for each of the plurality of control queues, processing one or more commands stored in one control queue of the plurality of control queues by using an actuator system corresponding to the one control queue among the plurality of actuator systems.
Owner:KK TOSHIBA +1
Wireless data transmission method, system and device based on USB interface and storage medium
ActiveCN121524120ADigital data protectionInternal/peripheral component protectionDisks (device)Terminal equipment
The invention provides a wireless data transmission method, system and device based on a USB interface and a storage medium. The method comprises the steps that an intelligent electronic device sends a data transmission instruction and USB flash disk verification information to a first terminal device; the first terminal device receives the data transmission instruction and the USB flash disk verification information, determines a file data identifier corresponding to the data transmission instruction, performs first verification processing on the USB flash disk verification information, and obtains encrypted file data corresponding to the file data identifier from the extended storage module based on the file data identifier; the first terminal device sends encrypted file data and the USB flash disk verification information to a second terminal device; and the second terminal device receives the encrypted file data, performs second verification processing on the USB flash disk verification information, and decrypts the encrypted file data through a hardware decryption chip of a second USB flash disk device to obtain decrypted file data. According to the scheme, data transmission can be efficiently and safely realized.
Owner:SHENZHEN LINGDECHUANG TECH CO LTD
Disk device and head gimbal assembly
PendingJP2025176310ADriving/moving recording headsMounting/attachment of transducer headDisks (device)Structural engineering
Owner:KK TOSHIBA +1