39results about How to "Efficient backup" patented technology

A system for efficient backups using dynamically shared storage pools in peer-to-peer networks comprises one or more processors and memory coupled to the processors. The memory stores instructions executable by the processors to implement a backup manager configured to dynamically subdivide a storage pool into one or more portions of storage currently designated for local backup data and one or more portions of storage currently designated for peer-to-peer (P2P) backup data. In response to local backup data received from a backup client, the backup manager may store the local backup data in a portion of the storage pool that is currently designated for local backup data. The backup manager may then generate a P2P version of the local backup data, e.g., by encrypting and / or redundancy encoding the local backup data, and transmit parts of the P2P version to each of one or more peer devices in the P2P network.

The version set backup and restore facility responds to a version set backup request by backing up multiple snapshot copies of a storage object concurrently from a storage array to backup storage media. The version set backup and restore facility responds to a version set restore request by restoring a plurality of snapshot copies of the storage object concurrently from the backup storage media to the storage array. The on-tape backup image of the version set includes variable-length extents of data for each of the multiple snapshot copies of the storage object. The variable-length extents of data for each of the snapshot copies of the storage object are grouped together and ordered in the on-tape backup image by increasing or decreasing logical block address.

The invention provides a method for realizing high-efficiency rapid backup of a database, which is characterized by triggering a writing-log daemon progress of the database to start when the database sends out a service update request, starting a synchronous writing-log daemon progress during writing a local rework log to write a backup rework log and forming archived log data at the backup end. By the archived log analysis at the backup end, the database required to be backed up can be identified and an increment marker file can be generated. A system backup daemon progress reads the increment marker file for backing up the increment and generates an increment backup gather. The method can realize the immediate backup of the database system, rapid increment backup of the database system and key function of backup synthesis, thereby achieving high-efficiency rapid backup. The method is suitable for database systems of Oracle, Microsoft SQL Server, Mysql and the like.

An apparatus and method for assuring effective backup for sensor failure in robots, by utilizing a single extra sensor attached between the end actuator and the base. The single extra sensor provides absolute back-up for any single encoder failure that may occur in the system, and statistically significant back-up for any double encoder failure. A single additional sensor effectively provides the robotic system with one redundant information input to the robot control algorithm, which can be used in order to determine whether any of the other control sensors, or even the additional sensor itself, has failed and is delivering an erroneous reading, and hence to warn the operator of the failure. A single additional sensor also provides useful warning of the simultaneous failure of two sensors, since the likelihood that two sensors fail simultaneously in a mode that makes the failures undetectable, can be regarded as statistically insignificant.

A communication system includes a pair free space optical (FSO) terminals. The FSO terminals switch from a first operating mode to a second operating mode wherein the traffic is carried by an ad hoc network. The switching may be based upon a quality of service (QoS) parameter being exceeded. The first operating mode may be the primary operating mode, and the second operating mode may be the back-up operating mode.

A data backup method for a flash memory module is provided. The flash memory module includes a plurality of flash memory units. In the data backup method, a controller is first provided to receive a backup function enabling signal. The controller then configures the flash memory units according to the backup function enabling signal such that at least one of the flash memory units is configured as a backup storage area and the flash memory units that are not in the backup storage area are configured as a main storage area. The controller then checks and receives an updated status of important data in the main storage area and backs up the important data into the backup storage area according to the updated status. Accessing to the backup storage area and accessing to the main storage area by the controller are independent.

A method and system enable tape back-up of objects stored to an object storage platform and also enable efficient backup to a secondary storage device data objects. An offline-replica bit within a metadata of an object being stored is set to a first value, indicating that the stored object is available for secondary storage to a second storage device. In response to receiving a request for backup of one or more objects from the object storage platform: the storage controller: identifies which objects have an offline-replica bit value that is the first value; and provides only those objects requested that have their offline-replica bit value equal to the first value. An external backup tracking mechanism identifies which objects have been backed-up to the secondary storage, and only those objects that have not previously been backed up are backed up during a subsequent backup request.

A method for optimizing data transfer through parallelized interlacing of data based upon sorted characteristics to minimize latencies inherent in the system. Operating a plurality of threads in parallel on disparate file sizes ordered by an additional thread. Efficient backup of heterogeneous non-volatile mass store to a network attached server. Scalable distribution of backup processes for computing hashes and eliminating duplication. Increased granularity of file pieces to match blocking of file I / O with network transmission. Efficiently packing each network transmission block using sequence search criteria. Avoidance of sending undesired pieces. Segmentation of each file and object into a hierarchy of pieces in a plurality of types.

The invention provides a file backup method and system and a client. The file backup method comprises the steps that a disk area on a server is mounted on the client to form a virtual disk through a specified network protocol; a first data bitmap and a second data bitmap are created on a memory of the client; a system bitmap of a backup data source is initially scanned, input / output data in the backup data source is read, and the read input / output data in the backup data source is copied to the virtual disk; after scanning of the system bitmap of the backup data source is completed, the first data bitmap and the second data bitmap are monitored according to preset data backup parameters, switching to the second data bitmap is achieved through the changing condition of the input / output data in the backup data source recorded by the first data bitmap, and the changed input / output data is copied to the virtual disk according to the change of the second data bitmap. Accordingly, a time consuming operation is avoided, small files can be efficiently backuped, and the reliability of data is guaranteed.

The invention relates to a cloud storage technology, and discloses a data backup method, which comprises the following steps of: obtaining source data to be backed up, establishing a snapshot volume by utilizing a snapshot copy-on-write technology, executing source data backup and generating backup data; when backup cannot be carried out normally, invalid source data to be backed up are obtained,and the backup data are recovered through the MongoDB backup technology; and obtaining a full database backed up by the user in a preset period, and realizing database-level incremental log backup through MongoDB incremental backup. The invention further provides a data backup device and a computer readable storage medium. According to the invention, efficient backup of the source data is realized.

Technologies are described herein for providing efficient backup of multiple versions of a data file using data de-duplication. A CDP module copies blocks of data of a specific block size from a current version of the data file to a master file maintained in a backup location for the data file. Only blocks of data not matching a unique data block already in the master file are copied. The CDP module then creates an anterior file in the backup location for the current version of the data file containing an ordered list of references to the unique data blocks in the master file. The order of the list of references is based on the order of occurrence of each unique data block in the modified version of the data file. Finally, the CDP module creates a posterior file in the backup location for the current version of the data file containing any remaining block of data in the data file that is less than the specific block size.

The invention discloses a method and system for accelerating concurrent working of ARM processors and belongs to the field of parallel working of the processors. The method and system aim at solving the technical problem that the working efficiency of the ARM processors is low when the ARM processors are interconnected through the Ethernet or PCIE buses. The method includes the steps that the PCIE bus of each ARM processor is converted into a RapidIO bus, and the ARM processors carry out data communication through the RapidIO buses. The system structurally comprises a RapidIO exchange chip, the ARM processors and multiple PCIE-to-RapidIO bridges. Each ARM processor corresponds to one PCIE-to-RapidIO bridge, each ARM processor is connected with the corresponding PCIE-to-RapidIO bridge through the corresponding PCIE bus, and each PCIE-to-RapidIO bridge is connected with the RapidIO exchange chip through the corresponding RapidIO bus.

The invention provides a distributed database backuping method and belongs to the fields of distributed technology, routes and MapReduce models. The distributed database backuping method comprises executing a database backuping task through a scheduler according to a backuping strategy, wherein the backuping strategy can be implemented through an REST (representational state transfer) interface and a database configuration or management platform; during backuping, the scheduler transmits a backup instruction to an agent, the agent locates nodes to be backuped and operation information throughroutes and transmits backup requests to every node client through the MapReduce technology, and the clients backup databases on the nodes after receiving the backup requests. The distributed databasebackuping method can achieve safely and efficiently achieve backup of distributed MySql databases at a low cost.

The invention is a method of backuping operating course record, applied in communication network interface device, writing operating record in a nonvolatile random access memory by a microcontroller in the communication network interface device. As computer system starts, it writes the system startup time in the nonvolatile random access memory and as a user logs on and uses the computer system, stores the logon time and operating course of the user in the nonvolatile random access memory. And as the storage capacity of the nonvolatile random access memory is deficient or according to the periodic time table of the backup, it backups the data into the storage device additionally connected with the network.

The invention belongs to the technical field of data communication. The invention discloses an electronic data communication method and system based on the Internet of Things. The electronic data communication system based on the Internet of Things comprises an electronic data acquisition module, a data processing module, a main control module, a data encryption module, an Internet of Things communication module, a network access optimization module, a data decoding module, an electronic data verification module, a data backup module, a data cache module and a display module. Through the decoding module, the electronic data communication decoding accuracy of the Internet of Things can be greatly improved; meanwhile, the backup module is used for solving the problem that in the prior art, only physical backup and logic backup modes are adopted so that the specific electronic database object cannot be backed up, or low backup and restoration efficiency and electronic data loss are caused, and the effect of efficiently and losslessly backing up and restoring the electronic data of the specific electronic database object is achieved.

The invention relates to a picture processing system, comprising a network state detection device used for detecting a real-time network state of a terminal, a resolution ratio detection device used for detecting a resolution ratio of a terminal picture, a picture collection device used for collecting pictures, and a data storage device used for storing picture information, wherein the network state detection device sends a real-time detection result to a central processing unit, the central processing unit computes and edits a resolution ratio interval value according to differences of the network states and sends a command to the resolution ratio detection device, the resolution ratio detection device compares the resolution ratio of the terminal picture with the command sent by the central processing unit, and collects the corresponding picture in the terminal by combining with the picture collection device, and the central processing unit sends the picture collected by the picture collection device to the data storage device for storage. According to the system, synchronous implementation of picture collection and social contact sharing of the user is achieved, and management, backup, sharing and exchange of the pictures can be efficiently implemented.

The invention discloses a simulating calculation data management system for a power system based on WEB, and the system comprises an external access system, an interface server, a data processing server, and a data storage cluster. The external access system is in unidirectional connection with the data processing server through an interface server, and the data processing server is in unidirectional connection with the data storage cluster. The system achieves the relevance processing of calculation result data, employing the WEB service of an RES rule to arrange all data sources and to provide service for the outside, simplifies the external system, obtains data cost, and improves the use efficiency and quality of data. The system can be used in a local area network of the power system or the Internet, and meets the demands of a power system planning simulation worker for the high-efficiency obtaining and backup of simulating calculation data of the power system.

A method for optimizing data transfer through retrieval and identification of non-redundant components. Efficiently packing each network transmission block using sequence search criteria. A hierarchical skipping method. Avoidance of sending undesired pieces. Segmentation of each file and object into a hierarchy of pieces in a plurality of types.

The invention relates to a virtual server backup and restoration method based on a storage volume level. The method comprises the following steps: acquiring disk capacity in a virtual machine and to-be-backed-up information in a disk; a storage platform is established, the storage platform is provided with an LUN backup disk with the same capacity as the disk, and the LUN backup disk is provided with a plurality of storage volume levels used for conducting hierarchical backup on the to-be-backed-up information; respectively storing the logic levels of the information to be backed up into different storage volume levels, and enabling the information stored in the LUN backup disk to be the same as the disk content in the virtual machine so as to complete the backup of the disk content; and performing virtual snapshot on the LUN backup disk, so that the disk content is recovered according to the content of the virtual snapshot when the disk content is damaged. The to-be-backed-up data can be effectively and virtually stored, a storage platform does not need to be emptied, and the backup efficiency is greatly improved.

The invention discloses a partition table backup method and device, electronic equipment and a storage medium. Relates to the technical field of databases. The method comprises the steps that a partition maintenance configuration table is read, and a first partition table needing to be automatically maintained is determined according to the partition maintenance configuration table; determining partitions exceeding a preset retention period of the first partition table according to the partition maintenance configuration table, and determining backup tables corresponding to the partitions; and replacing the data of the partitions into the backup table, and deleting the partitions. Through the technical scheme of the invention, the partition table can be backed up simply, efficiently and accurately.

The invention relates to a backup method, system and storage medium of a NAS file system, belonging to the field of file system backup. The method includes: a mounting step; a directory and file metadata obtaining step; a file directory tree building step; a file hash tree building step; and an incremental file obtaining step. The system includes: a mounting module; a directory and file metadata acquisition module; a file directory tree construction module; a file hash tree construction module; an incremental file acquisition module. The present invention constructs a file directory tree through depth-first traversal of the NAS file system, constructs a file hash tree based on the file directory tree, and then compares the file hash tree constructed by the current backup and the file hash constructed by the previous backup step by step. tree, quickly locate nodes containing incremental files, and obtain incremental files between two backup time points, realizing efficient backup of the NAS file system.