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41results about How to "Reduce copying time" patented technology

Method for rolling back from snapshot with log

High speed differential copy can be implemented in the fail-back after disaster recovery when the data of the primary site is protected safely. When a restore command is issued, the common snapshots of the snapshots of the primary site and the secondary site are extracted as the base snapshot by comparing the log tables of the primary site and secondary site. The volume of the primary site is rolled back with the extracted snapshots. The latest snapshot of the volume of the secondary site is transmitted to the primary site and it is applied to the volume of the primary site to synchronize the volumes of the primary site and the secondary site.
Owner:HITACHI LTD

Method for rolling back from snapshot with log

High speed differential copy can be implemented in the fail-back after disaster recovery when the data of the primary site is protected safely. When a restore command is issued, the common snapshots of the snapshots of the primary site and the secondary site are extracted as the base snapshot by comparing the log tables of the primary site and secondary site. The volume of the primary site is rolled back with the extracted snapshots. The latest snapshot of the volume of the secondary site is transmitted to the primary site and it is applied to the volume of the primary site to synchronize the volumes of the primary site and the secondary site.
Owner:HITACHI LTD

Method for rolling back from snapshot with log

High speed differential copy can be implemented in the fail-back after disaster recovery when the data of the primary site is protected safely. When a restore command is issued, the common snapshots of the snapshots of the primary site and the secondary site are extracted as the base snapshot by comparing the log tables of the primary site and secondary site. The volume of the primary site is rolled back with the extracted snapshots. The latest snapshot of the volume of the secondary site is transmitted to the primary site and it is applied to the volume of the primary site to synchronize the volumes of the primary site and the secondary site.
Owner:HITACHI LTD

Network printing system to copy setting information and a method of copying setting information

A network printing system to copy setting information and a method of copying setting information. The network printing system comprises a source image forming apparatus to store setting information, at least one terminal to receive the setting information from the source image forming apparatus and to store the setting information if a command to copy the setting information is input, and a plurality of target image forming apparatuses to communicate with the at least one terminal to copy the setting information stored in the at least one terminal.
Owner:SAMSUNG ELECTRONICS CO LTD

Network data processing method based on graphic processing unit (GPU) and buffer area, and system thereof

ActiveCN102299843ATake advantage of parallel computing powerReduce overheadData switching networksData processing systemNetwork data
The invention discloses a network data processing method based on a graphic processing unit (GPU) and a buffer area. The method is characterized in that: a pretreatment thread in a pretreatment thread group carries out pretreatment uninterruptedly to received network data packets so as to form a calculating task which is sent to the buffer area; a calculating thread in a calculating thread group takes out one calculating task uninterruptedly from the buffer area and gives CPU to carry out calculation or takes out a plurality of the calculating tasks for the GPU to carry out the calculation, and then a calculation result is sent to a subsequent thread group; a subsequent processing thread in a subsequent processing thread group carries out subsequent processing uninterruptedly to the calculation result sent by the calculating thread of the calculating thread group after completing the calculating task. The invention also discloses a network data processing system based on the GPU and the buffer area. In the invention, through simultaneous working of a plurality of calculating threads, a data copy and pipelining executed by a GPU kernel function can be achieved. A calculating capability of the GPU can be fully used. The high speed calculating and processing network data can be realized. By using the method and the system, network load can be dynamically adapted and a processing delay is low.
Owner:BEIJING ANTIY NETWORK SAFETY TECH CO LTD

Method and system of achieving data copying of solid-state hard disk FTL and solid-state hard disk

The invention discloses a method and system of achieving data copying of solid-state hard disk FTL and a solid-state hard disk. The method comprises the steps of maintaining an address mapping list from a logical address LA to a physical address PA; maintaining an array or linked list of the physical address PAdest which becomes a destination of a copy, forming a reverse address mapping list from the mapping of the physical address PAdest to multiple logical address LAi, and maintaining the reverse address mapping list; receiving a copy-free copy command sent by a software to the solid-state hard disk, wherein the copy-free copy command includes a source logical address LAsrc of the copy, a destination logical address LAdest, and the number of data blocks which need to be copied; modifying the address mapping list and the reverse address mapping list based on a copy-free command, directing the destination logical address LAdest to the physical address to which the source logical address LAsrc is mapped, and completing the copy-free copying of the data. According to the method and system of achieving the data copying of solid-state hard disk FTL, unnecessary writing operations in the solid-state hard disk can be greatly reduced, the copying time is reduced, the service life of the solid-state hard disk is prolonged, and data reliability is improved.
Owner:SHENZHEN DAPU MICROELECTRONICS CO LTD

Data recovery method and device

The invention discloses a data recovery method and device and belongs to the field of data storage. The method includes the steps of receiving a data recovery command which includes a target snapshot time point through a first storage device, confirming that data stored in a logic address are data written to the first storage device after the target snapshot time point, obtaining historical data, and sending the historical data and the logic address to a second storage device. By receiving the data recovery command which includes the target snapshot time point through the first storage device, confirming that the data stored in the logic address are the data written to the first storage device after the target snapshot time point, and sending the historical data and the logic address to the second storage device, the problem that in the prior art, all data in a main storage device are required to be copied to storage devices is solved, and the purposes that copy time is reduced, and broadband resources are saved are achieved.
Owner:HUAWEI TECH CO LTD

Data copying management device and data copying method of data copying management device

The invention provides a data copying management device and a data copying method of the data copying management device. The data copying method comprises the following steps that a Hash algorithm is adopted for obtaining the Hash values of a plurality of source data blocks formed by source data sub blocks; the Hash values are sent to a target storage side so that the target storage side judges whether the source data blocks are directly generated by the target storage side or the source data blocks are sent to the target storage side by the source storage side on the basis of the received Hash values; when the first feedback fed back by the target storage side is received, the source data blocks are ignored; when the second feedback bed back by the target storage side is received, the source data blocks are sent to the target storage side. Through adopting the mode, the copying speed on the special data blocks can be accelerated, so the CPU (central processing unit) and the network resources are saved, and the copying time is reduced.
Owner:HUAWEI TECH CO LTD

Method, medium, and apparatus for offline self servo writing and disk drive using the same

An offline self servo writing method capable of improving servo writing accuracy and reducing copying time by designing a servo pattern of a reference disk to have the same resolution as a final servo pattern, and a disk drive using the method. The offline self servo writing method includes a servo information writing process performed after a reference disk, where a reference servo pattern having the same resolution as a final servo pattern, is written and one or more blank disks are assembled in the disk drive, wherein the servo information writing process is performed by simultaneously writing identical final servo information on all disks including the reference disk by using the reference servo pattern while following tracks of the reference disk.
Owner:SAMSUNG ELECTRONICS CO LTD

Method and device for copying built-in hard disk data

The invention discloses a method and a device for copying built-in hard disk data. A built-in hard disk is arranged inside the device. The method comprises the following steps: a) building a folder in the built-in hard disk as a target folder, b) building a folder with a name as same as the target folder in an outer storage device as a source folder and placing the data to-be-copied in the source folder, c) connecting the outer storage device to the device through an ESATA interface, and d) scanning the outer storage device and copying the data in the source folder with a name as same as the target folder in the built-in hard disk. Through the method and device of the invention, the data in the built-in hard disk can be quickly and simply copied.
Owner:HISENSE BROADBAND MULTIMEDIA TECH

Terminal apparatus and computer readable medium

Disclosed is a terminal apparatus including a communication unit which performs a wireless communication with another terminal apparatus and a determination unit which determines whether a terminal apparatus which is a sub terminal into, which data subject to copying is to be copied, exists through the communication via the communication unit, the terminal apparatus which is the sub terminal being a terminal apparatus to which the data is not yet transmitted, if the terminal apparatus is a main terminal from which the data is copied. Further including a control unit which reads out the data from a storage unit and transmits the data to the terminal apparatus which is the sub terminal determined to exist via the communication unit if the determination unit determines that the terminal apparatus which is the sub terminal exists.
Owner:CASIO COMPUTER CO LTD

Method for backup data

A method for copying data includes preparing a source data media with a numbers of effective data and a numbers of base data, fetching one batch of data from source data media and setting size of fetched data to be as the same as base data, comparing fetched data with base data and copying data to at least one object media if two compared data are not the same or otherwise not carrying out copy operation, fetching next batch of data and repeating above said steps till data in copy region of source data media is completely copied onto object media.
Owner:COPYSTAR BACKUP & STORAGE

Recordable device that could record flash disks without computers

The present invention is related to a recordable device that can record flash disks without computers. There are two slots for general serial buses. Two flash disks can insert into these two slots for mutual copy. A control circuit chooses the file format and the file date according to the selections from the first function key and the second function key and executes the copy command to copy files between the two flash disks. The control circuit controls LED indicators to indicate when the copy command has been executed.
Owner:WALTON CHALNTECH +1

Data management device and management method and data management system

The embodiment of the invention provides a data management device and management method, and a data management system, and relates to the technical field of data management. The data management deviceincludes: a map information generation portion for generating map information on the basis of sector position information for displaying a position where the data is located in a main driver, whereinthe map information displays a sector address as a copy object; a mirror data generation portion for reading sector data at a designated address in the main driver according to the map information, and generating mirror data on the basis of the read sector data; a write-in portion for writing the sector data in a designated address of a large main driver on the basis of the mirror data; and an indication portion for indicating the sector address showed in the mirror data to a duplicator, wherein the duplicator is used for writing data read from the large main driver in a target driver. The data management device can greatly shorten the data reproduction time.
Owner:YEC株式会社

Method, apparatus and device for data backup

The present application provides a method, an apparatus and a device for data backup. The method comprises the following steps: judging whether the data in the data block corresponding to the index ofthe first data block is the same as the data in the data block corresponding to the index of the second data block; the data block corresponding to the index of the first data block being a data block to be copied, and the data block corresponding to the index of the second data block being a copied data block. If the data in the data block corresponding to the first data block index is the sameas the data in the data block corresponding to the second data block index, sending duplicate information to the target end device, the duplicate information indicating that data in the data block corresponding to the first data block index is duplicated with data in the data block corresponding to the second data block index. The present application reduces the occupancy of link resources.
Owner:HUAWEI TECH CO LTD

Portable mobile film and television content accelerated transmission device

The invention discloses a portable mobile film and television content accelerated transmission device. The shell is internally provided with a storage unit, a transmission unit, a power supply unit, an energy storage unit and a heat radiation unit. The storage unit is fixed at one side of the shell through a bracket. The storage unit is used for storing the photographed film and television content. The transmission unit is fixed at one side of the shell through the bracket. The transmission unit is used for transmitting the photographed film and television content. The power supply unit is fixed at the other side of the shell through the bracket. The power supply unit is used for providing the power source for the storage unit, the transmission unit, the energy storage unit and the heat radiation unit. The energy storage unit is fixed at the other side of the shell through the bracket. The energy storage unit is used for providing the power source for the transmission device under thecondition of power outage. The heat radiation unit is fixed at the middle part of the shell through the bracket. The heat radiation unit is used for performing heat radiation in working of the transmission device. Miniaturization of hardware can be realized so that energy consumption is low, unified management of the storage medium is facilitated and the photographed content can be copied to the storage medium in one step.
Owner:量子云未来(北京)信息科技有限公司 +1

A method, system, device and medium for incremental synchronization of annular two places and three centers

The invention discloses a method, system, device and storage medium for incrementally synchronizing two centers in two places and three centers. The method includes: initiating a synchronization / active-active remote replication relationship between a production volume and a first disaster tolerance volume; The volume receives data, and updates the first map of the production volume according to the data; starts the periodic asynchronous remote replication relationship between the first disaster recovery volume and the second disaster recovery volume, and synchronizes the first disaster recovery volume and the second disaster recovery volume according to the first map. the production volume; in response to the failure of the first DR volume or the failure of the link between the production volume and the first DR volume, updating the second bitmap of the production volume based on the first map; and starting the production volume and the second bitmap The backup period asynchronous remote synchronization relationship between the disaster recovery volumes, and incremental synchronization is performed on the second disaster recovery volume based on the second bitmap. The invention can realize the incremental synchronization of the asynchronous remote replication of the backup cycle in the annular two-place and three-center, reduce the repeated copying of data, and reduce the copying time from the production volume to the second disaster-tolerant volume.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Data transform apparatus and control method thereof

A data transform apparatus transforms four integer data D0-D3 into one DC coefficient Y0 and three AC coefficients Y1-Y3 as lossless-Hadamard transform coefficients. A first calculation unit group adds date D0 to respective data D1 to D3. A first shifter shifts data D0 1 bit to the left. A second calculation unit group subtracts three data calculated by the first calculation unit group from output of the shifter. A second shifter halves a calculation result of the second calculation unit group by shifting the subtraction result 1 bit to the right, and executes round processing for truncating a fractional part of the halved data. A sign inverter inverts the sign of output from the second shifter, and outputs it as DC coefficient. A third calculation unit group subtracts output from the sign inverter from output of the first calculation unit group, and outputs these data as AC coefficients.
Owner:CANON KK

Virtual machine image cloning method and system based on qcow2 format

A virtual machine image cloning method and system based on the qcow2 format, the method comprising the steps of: creating a template image file in the qcow2 format; creating at least one image file in the qcow2 format; Set as a template image file in qcow2 format; create and run a virtual machine based on each image file in qcow2 format; store the modified data of the virtual machine in the corresponding image file in qcow2 format, so that the copying time of the virtual machine image file Greatly shortened, while saving storage space.
Owner:OPZOON TECH

High-speed object-based parallel storage system directory replication method

The invention discloses a high-speed object-based parallel storage system directory replication method, which aims to solve the problems that the directory replication of an object-based parallel storage system is carried out on a client knot, time cost is large due to a serialization process, the client knot becomes a communication bottleneck because a data replication process needs to be transferred through the client knot in a data replication process, and the like. The technical scheme is as follows: a directory replication system is constructed, a directory replication task is divided into a plurality of replication tasks of a plurality of files, and then the replication tasks of the files are distributed to a plurality of object storage servers to be carried out in parallel, whereinthe files are directly replicated to a destination object storage server from a source object storage server without being transferred through the client knot. Due to the adoption of the invention, the replication time can be greatly reduced; transferring through the client knot is unnecessary, so that the phenomenon that the client knot becomes the communication bottleneck is avoided; and a source file and a target file can not be located on the same object storage server in a replication process, so that single point failure is avoided.
Owner:NAT UNIV OF DEFENSE TECH

Apparatus and method for distributed processing of identical packet in high-speed network security equipment

Disclosed is an apparatus for distributed processing of an identical packet in high-speed network security equipment, including: a plurality of analysis modules for each determining whether vulnerability analysis is required by analyzing a received packet; a circular queue for receiving the packet from an analysis module initially determining that the vulnerability analysis is required and storing the received packet as a bucket structure; and a plurality of analysis engines for each performing different vulnerability analyses for the packet acquired from the circular queue based on a packet address of the bucket structure, in which the bucket structure includes a packet data storage unit and packet use information storage units which are as many as the plurality of analysis engines, and the packet use information storage units store packet use information of the plurality of respective analysis engines, respectively.
Owner:WINS CO LTD

Chip data copying device and method

The invention relates to a chip data copying device and method. A logic control unit is adopted to analyze all partitions of a master slice, master slice analysis result files are obtained, participation of a processor is reduced, the data processing speed can be increased, copying is executed through the logic control unit, the data cache space of the processor is not needed, the hardware cost is saved, the data processing speed is further increased, the processor can be matched with a master slice analysis result file for copying, the copying data size is effectively reduced, the copying time is shortened, the logic control unit can achieve different chip communication protocols, and therefore data copying among various protocol chips is supported, therefore, a corresponding chip data copying device can use the bandwidth of a chip hardware bus to the maximum extent, and the purpose of increasing the data copying speed of a high-capacity chip is achieved.
Owner:ACROVIEW TECH CO LTD

Method, system and device for incrementally synchronizing two places and three centers of ring, and medium

The invention discloses a method, a system and device for incrementally synchronizing two places and three centers of a ring, and a storage medium. The method comprises the following steps: starting asynchronous / active remote replication relationship between a production volume and a first disaster recovery volume; in response to the fact that the production volume receives the data, updating a first bitmap of the production volume according to the data; starting a periodic asynchronous remote replication relationship between the first disaster recovery volume and the second disaster recoveryvolume, and synchronizing the first disaster recovery volume and the production volume according to the first bitmap; updating a second bitmap of the production volume based on the first bitmap in response to the failure of the first disaster recovery volume or the failure of a link between the production volume and the first disaster recovery volume; and starting a backup period asynchronous remote synchronization relationship between the production volume and the second disaster recovery volume, and performing incremental synchronization on the second disaster recovery volume based on the second bitmap. Incremental synchronization of backup period asynchronous remote replication in annular two-place three-center can be realized, repeated data replication is reduced, and the time for copying a production volume to a second disaster recovery volume is shortened.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD

A data transmission method and device

Embodiments of the present invention provide a data transmission method and device, wherein the data transmission method includes: acquiring an applied data area header pointer of a memory cache MBUF, and encapsulating baseband board data in the MBUF according to the data area header pointer in; send the data area header pointer to the network adaptation layer as the first data pointer, so that the network adaptation layer modifies the data pointed to by the first data pointer, and modifies the data obtained after the data modification. The second data pointer is sent to the data plane development kit DPDK. The embodiments of the present invention improve the data transmission performance of the baseband board.
Owner:DATANG MOBILE COMM EQUIP CO LTD

A high-speed data acquisition and transmission device

The invention discloses a high-speed data acquisition and transmission device, which comprises a programmable logic device data acquisition module, an RAM (Random Access Memory) reading and writing coordination control module, a communication module and an Ethernet data transmission module, wherein the programmable logic device data acquisition module is used for high-speed acquisition and buffer; the RAM reading and writing coordination control module is used for high-speed buffer and reading of programmable logic device control data and is used for reading data of a certain data length from an RAM and buffering in a programmable logic device when a single-chip microprocessor has a data request; the communication module is used for realizing communication of the programmable logic device and the single-chip microprocessor and realizing reading of data between the single-chip microprocessor and the programmable logic device by a pair of backward stage FIFO (First Input First Output) and SPI (Single Program Initiation) communication of ping-pong operation; and the Ethernet data transmission module is used for optimizing a UIP (Universal Interface Processor) protocol stack, acquiring data quantity which is easy for IP (Internet Protocol) sub-packet transmission, simplifying a data transmission process into a copy packet header and indirectly reading the data cached in the RAM to the network buffer region through the programmable logic device. According to the high-speed data acquisition and transmission device, high-speed AD (Analog Digital) acquisition is realized, the copy frequency for uploading the data to Ethernet is reduced, and the problem of low CPU (Central Processing Unit) utilization rate is solved.
Owner:GUANGDONG UNIV OF TECH

Data transform apparatus and control method thereof

A data transform apparatus transforms four integer data D0-D3 into one DC coefficient Y0 and three AC coefficients Y1-Y3 as lossless-Hadamard transform coefficients. A first calculation unit group adds date D0 to respective data D1 to D3. A first shifter shifts data D0 1 bit to the left. A second calculation unit group subtracts three data calculated by the first calculation unit group from output of the shifter. A second shifter halves a calculation result of the second calculation unit group by shifting the subtraction result 1 bit to the right, and executes round processing for truncating a fractional part of the halved data. A sign inverter inverts the sign of output from the second shifter, and outputs it as DC coefficient. A third calculation unit group subtracts output from the sign inverter from output of the first calculation unit group, and outputs these data as AC coefficients.
Owner:CANON KK

Data copying method and system based on embedded system

The invention relates to a data copy method and a data copy system based on an embedded system. The method comprises the steps that: a host sends a data copy command to an embedded microprocessor; theembedded microprocessor allocates memory according to the data copy command, and reads data in a storage unit of peripheral hardware equipment to the allocated memory; the data in the allocated memory is written into a storage unit of the microprocessor; the allocated memory is released, a memory allocation unit provided by the system is used to receive the data copy command and then makes memoryallocation; a copy data reading unit is used to read the data in the storage unit of the peripheral hardware equipment to the allocated memory; a copy data writing unit is used to write the data intothe storage unit of the embedded microprocessor; and then a memory release unit releases the occupied memory. When the method and the system are utilized to perform data copy, the communication channel only needs to be experienced for once, which reduces the data flow, saves time, and improves the operating speed.
Owner:VIMICRO CORP
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