297results about How to "Improve backup efficiency" patented technology

A hash-optimized backup system and method takes data blocks and generates a probabilistically unique digital fingerprint of the content of each data block using a substantially collision-free algorithm. The process compares the generated fingerprint to a database of stored fingerprints and, if the generated fingerprint matches a stored fingerprint, the data block is determined to already have been backed up, and therefore does not need to be backed up again. Only if the generated fingerprint does not match a stored fingerprint is the data block backed up, at which point the generated fingerprint is added to the database of stored fingerprints. Because the algorithm is substantially collision-free, there is no need to compare actual data content if there is a hash-value match. The process can also be used to audit software license compliance, inventory software, and detect computer-file tampering such as viruses and malware.

A data backup system can analyze the data that need backups in accordance with user-defined or default backup criteria, so that the user can locate the files in need of backup without spending lots of time on finding the files.

A method for data backup including (a) forming an image of the storage device; (b) for each block to be backed up to the image, generating a hash; (c) for each block stored in the image, storing a hash in a hash table; (c) for each additional block of the storage device to be backed up, generating a hash; (d) sorting all the generated hashes and deleting duplicate hashes; (e) comparing the hashes to identify candidate blocks that might have identical contents with contents of blocks stored in the image; (f) if the hashes are not coincident, then backing up, to the image, contents of unidentified blocks and blocks that do not have identical hashes, and (g) otherwise, storing links in the image instead of the contents of the blocks, (h) after checking all the hashes for those blocks that need to be backed up, writing only unique hashes to the hash table; (h) links for multiple blocks with identical contents point to a single block in the image, (i) the image contains a bitmap of the backup; (j) the bitmap contains indicators for the links that define if a block contains the content or if the block points to another block, (k) also indicators that reflect used and unused blocks such that an indicator whether contents are shared with another block vs. contents are unique to every other block in the image.

The invention discloses an Android-based mobile terminal cold-boot method and an Android-based mobile terminal cold-boot device. The method comprises the following steps of: in a fast cold-boot mode, after a power supply of a mobile terminal is cut off, backing data to be saved up to nonvolatile memory equipment in a standby state by using the mobile terminal, and powering the mobile terminal off; and after the mobile terminal is rebooted, recovering the data backed up in the nonvolatile memory equipment to a corresponding physical memory. The method and the device of the invention have the advantages of greatly shortening the cold-boot time of the mobile terminal and enabling the mobile terminal when rebooted to fast recover the data to a state in which the data is before the standby state.

The embodiment of the invention provides a file backup method and a main storage device. According to the file backup method, the storage space of a main file in the main storage device is divided into N secondary data blocks, at every backup moment of incremental backup, data in the updated secondary data blocks from the previous backup moment to the current backup moment are copied to a local backup buffer area, and at every backup moment of differential backup, data in the updated secondary data blocks from the initial backup moment to the current backup moment are copied to the local backup buffer area. Because the main storage device only needs to synchronize the data in the updated secondary data blocks stored in the local backup buffer area and the data in the secondary data blocks which are not updated do not need to be synchronized, the data size of file backup can be reduced, file backup efficiency is improved, and the storage space of the backup data is saved.

A method, system and computer program product for data backup such that: for each block of a storage device to be backed up to an image, generating a hash function value corresponding to contents of that block; generating a map of links between blocks in the image and corresponding blocks the storage device; using the hash function values to identify blocks of the storage device with identical contents, such that links for the blocks in the storage device with identical contents point to a single block in the image; and modifying the link in the map when a block in the storage is moved (for example, due to defragmentation) but its contents is not altered, so that the link points to the same backed up block.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for efficient backup using hashes One of the methods includes forming an image of a storage device, wherein contents of blocks of the storage device are restorable from the contents of blocks of the image. The method includes generating a first plurality of hash values, each hash value generated from contents of a block of the image. The method includes selecting a block of the storage device. The method includes generating a hash value from the contents of the selected block. The method includes determining whether the hash value occurs in the plurality of hash values. The method also includes generating an entry in the image in response to the determination.

The invention relates to a method of file backup in a computer system and a system thereof. The method comprises the following steps: step 1, a monitoring device captures a file operation event in the computer system, generates a file operation log for the file operation event which is within the monitoring range, matched with filter rules and successfully executed, and stores the file operation log into a memory device; step 2, a backup control device schedules the execution of a backup task, and transmits the backup task to a backup device when the backup task needs to be executed; step 3, the backup device judges whether the backup task is full backup or incremental backup, if the backup task is the full backup, then the full backup is carried out, otherwise, the next step is executed; and step 4, the backup device acquires the file operation log from the memory device and carries out the incremental backup according to the file operation log. The method can carry out online data warm backup, provides an incremental backup method for file logical blocks, reduces backup data volume and improves the backup efficiency.

The embodiment of the invention discloses a data backup and recovery method of an operating system. The data backup and recovery method of the operating system includes that a receiving terminal of a storage device sends the backup data of the operating system after receiving identification information of a storage area, wherein the storage area is the storage area in a shared storage area of the storage device; the backup data is written in the storage area, and index information of the backup data of the operating system is generated; when a user operation instruction needing to restore the operating system is detected, the storage device obtains the backup data of the operating system from the shared storage area according to the index information of the backup data of the operating system and sends the obtained backup data of the operating system through a designated port. The embodiment of the invention further discloses the storage device and the terminal. Through the data backup and recovery method of the operating system, the storage device and the terminal, the data backup efficiency of the operating system can be improved, the data backup and recovery costs of the operating system are reduced, and the user experience of the data backup and recovery of the operating system is improved.

The invention discloses a data backup method and device, which belong to the technical field of data backup. The method comprises the steps of: analyzing a fingerprint of a data block to be backed up; searching for the same fingerprint in a buffer pool by using the fingerprint as a keyword; if the same fingerprint exists in the buffer pool, adding 1 to a reference count of a virtual volume page in index information corresponding to the fingerprint; if the same fingerprint does not exist in the buffer pool, storing the data block to be backed up to a virtual volume, storing metadata information of the data block to be backed up to the buffer pool and establishing index information for the data block to be backed up in an index table as well as adding 1 to the reference count of the virtual volume page corresponding to the data block to be backed up in the established index information; and periodically inquiring the index table, and deleting the metadata information corresponding to the virtual page reel with the reference count lower than a predetermined threshold value. According to the method and the device provided by the embodiment of the invention, the re-deleting performance can be improved without affecting the system performance.

The invention discloses a data backup method and a data backup device. The method comprises the following steps of: receiving screening conditions; screening data which meet the screening conditions; and backing up the data which meets the screening conditions. Due to the application of the data backup method and the data backup device which are disclosed by the invention, the problems of space and traffic waste and low efficiency in the data backup and recovery process of a data backup technology in the prior art are solved, so that the effects of saving a data backup storage space and the traffic and improving the data backup and recovery efficiency are achieved.

The invention discloses a logical log generating method, which comprises: Acquiring the operation description included in the request of database operation; Generating a logical log comprising the only identified tag and the operation type tag of the operation object in accordance with the operation description; Wherein the operation type tag comprises a delete operation type tag or an overwriting operation type tag. Utilizing the logical log generating method, the invention also provides a database backup method and a database recovery method based on the logical log generating method. If the method provided in by the invention is used for physical backup of a database, the database can receive other operation requests, and physical backup data can be completely recovered when the database is recovered.

The invention relates to the technical field of data backup, in particular to a data backup method and device and a data recovery method and device. The data backup method and device and the data recovery method and device are used for solving the problem that needed backup and recovery window are comparatively long in the method of using an Export tool and an Import tool in an Hbase to conduct data backup and data recovery in the prior art. The data backup method comprises the steps that backup nodes create snapshoots for backup objects through the Hbase according to instructions of control nodes; the backup nodes backup the data in the created snapshoots to far-end storage nodes through a Hadoop distributed file system (HDFS). The data recovery method comprises the steps that recovery nodes read data stored in far-end storage nodes according to the instructions of the control nodes; the recovery nodes handle the read data to data in a snapshoot format, and the handled data are written into a data recovery system for providing a data access service through an HDFS interface.

The invention discloses a system and a method for copying and restoring data in cold-starting mode. The method comprises separating the hard disk into hidden partitions and customer partitions for copying and restoring user data information. The inventive system comprises a pre-setting module for setting a data copy / restore system on the hidden partitions; a starting module for judging computer staring type according to user inputting information after system BIOS starting, and deciding whether to start data copy / restore system according to the judging results; a copy module set in the data copy / restore system for copying data information in customer partition into the hidden partition; and a restore module set in the data copy / restore system for restoring data information in the hidden partition to the customer partition.

An embodiment of the invention discloses a data backup method and a related device and system. The data backup method includes: performing snapshot technology processing after a main storage device receives backup indications of a backup trigger strategy transmitted by a backup server, and transmitting backup data to the backup server and the backup storage device. Due to the fact that no application server participates in the backup progress, the self service performance of the application server cannot be influenced by backup software of an operation client side of the application server or backup data of a disk mirroring function software, normal operation of the application server can be achieved, and simultaneously efficient data backup can be achieved, namely the data backup function does not interfere with an operation service software of the application server.

The invention discloses a mirror image backup / recovery method and tool of a web management mode. A mirror image backup / recovery file is stored in a privacy box created by a server. The mirror image backup / recovery method comprises the following steps of: creating tasks on an interface of a client and backs up the tasks into the privacy box; indicating a user to log in a storage server and open the privacy box; enabling the user to log in a configuration webpage of the privacy box of the server; and opening the corresponding privacy box distributed to the user, wherein virtual disk equipment is mounted to be used as the privacy box for storage. The tool comprises a backup guide, a task manager, the privacy box, a recovery manager, a timing manager, a mail reporter, a short message reporter, system resources, a superior network manager, historical logs and a client remote storage server disk information acquisition module. By a privacy box encryption technology, the backup transmission efficiency cannot be influenced and overmuch resources of the storage server cannot be consumed; therefore, the data encryption storage is realized under the condition that any backup efficiency is not influenced.

The invention discloses a disk backup method of a virtue machine. The disk backup method includes that A, a backup server initiates backups to the virtue machine on a virtualization platform; B, the backup server communicates with the virtualization platform to inform the virtualization platform to perform snapshot operation upon the virtual machine; C), after the virtualization platform performs the snapshot operation upon the virtual machine, a motherboard of the virtual machine is parsed to obtain actual data disk sector distribution, and the virtualization platform returns the actual data disk sector distribution to the backup server; D), the backup server obtains all the actual data disk sector distribution and then backups corresponding sector data to a media server. By the disk backup method, time spent on backuping and recovering a window is enabled to be shortened, resource occupation of the virtualization platform is reduced, and more storage space is saved for customers.

Systems and methods are disclosed for a gas production system to efficiently maintain a pressure of a gaseous output stream within a tight pressure range when the system changes normal operation to backup operation. In one preferred embodiment, during normal operation a backup vaporizer is kept in cold standby by directing a small portion of a liquefied gas stream away from the main heat exchanger to the backup vaporizer. In this way, the backup vaporizer is able to respond immediately to a shutdown of the main gas production system. During normal operation, the output of the backup vaporizer is recombined with the gaseous output stream to any avoid loss of product thereby increasing efficiency.

A method for backing up data in a data center, device and system are provided. The data in all the VMs of one data center can be backed up simultaneously, and the associations between the VMs are also backed up during the backup, so it is unnecessary to concern the recovery orders of the VMs when the data of the data center is recovered. Meanwhile, when the stored data is exported from the hypervisor node, it is unnecessary to notify the upper layer OS for a backup, thereby improving the data backup efficiency and reducing the system logical complexity.

This invention discloses a backup and resuming method for data increment used in database, which utilizes an updated before image and after image of data recording based on time compression to back up and resume data increment, in which, it's not necessary for the data backup process to back up loaded result of a database and realize increment backup of the system by backing up the before image and after image.

The invention discloses data incremental backup method and system. The method comprises the following steps of: defining a data table to be backed up, directly filling a table name of the data table in a service data table file and indicating whether the data of the service table is added or updated; connecting a backup database after the data table to be backed up is well defined, analyzing the storage process according to the well-defined data table and finally generating an SQL (Structured Query Language) script statement set which can be directly executed and used for inserting updating; and packaging the generated SQL script statement set to acquire a data recovery file. The invention can realize high-efficiency and flexible data incremental backup.

The embodiment of the invention provides a backup and restoration method and device of a file system suitable for the file system, and relates to the technical field of data processing. The backup method of the file system comprises the following steps: first acquiring a snapshot file list; acquiring all file names and abstract values in the snapshot file list; computing the file abstract value of each fil in the current file system; comparing the abstract values of the files with the same file name in the current file system and the snapshot file list; and copying the file with different abstract value comparison result in the current file system to a designated position. Furthermore, the invention further provides a file system restoration method based on the backup method, the designated file is acquired by use of the abstract value of the file in the snapshot file, and the file with the same name with the designated file in the current file system is replaced according to the acquired designated file. By use of the technical scheme provided by the embodiment of the invention, the backup and restoration efficiency of the file system can be improved.

The invention provides a backup method, equipment and system for a virtual machine. The backup method for the virtual machine comprises the following steps that: a backup server mounts the snapshot initial volume of an original volume of the virtual machine to be backed up in a main storage device to a backup server; the backup server creates an initialization backup volume on backup storage equipment, and mounts the initialization backup volume to the backup server; the backup server backs up original data blocks of the original volume into the initial backup volume. According to the backup method, equipment and system for the virtual machine provided by the embodiment of the invention, backup processing of the virtual machine is realized through the backup server, the occupation of virtual platform resources, including main memory is reduced in a backup process, the backup disk space is saved, and the backup efficiency of the virtual machine is increased.

The embodiment of the invention discloses a data backup method and device. The method comprises the steps of obtaining remote backup failure information of a first task when remote backup failure happens to a data packet mapped by the first task in a task list; inquiring a mapping relation set between remote backup failure information which is set in advance and retry strategies, and obtaining the retry strategy mapped by the remote backup failure information of the first task; conducting the remote backup retry on the first task according to the obtained retry strategy. By means of the data backup method and device, the data backup efficiency can be improved.

The invention discloses a data backup method, and the method comprises the steps: obtaining a corresponding database according to the operation of a user; receiving a backup strategy assessment page which is submitted by the user and is corresponding to the user; determining a backup strategy of the database according to the information, written by the user, on the backup strategy assessment page; and carrying out the backup of the database according to the backup strategy. The invention also discloses a data backup device. Aiming at different database instances, the method employs the corresponding strategies, improves the system backup efficiency, and is convenient for the user to use.

The invention discloses a data backup method, which comprises the following steps of: receiving a data backup request, and parsing the data backup request to obtain data attribute information of datato be backed up; when it is found that the data backup end corresponding to the data attribute information is a local server from the data backup scheme list, backing up the data to be backed up to the local server; and when it is found that the data backup end corresponding to the data attribute information is the cloud server from the data backup scheme list, backing up the to-be-backed up datato the cloud server, wherein a corresponding relationship between each piece of data attribute information and each data backup end is pre-stored in the data backup scheme list. By applying the technical scheme provided by the embodiment of the invention, the data backup efficiency is improved, and the data backup safety is improved. The invention further discloses a data backup device, data backup equipment and a storage medium, which have corresponding technical effects.

An embodiment of the invention provides a backup method and a backup device. The backup method includes that at least two threads are adopted for reading data in at least two backup files; and at least two threads write data in the read backup files into a backup mapping file according to a sequence of time for finishing reading of the data in the backup files. Backup efficiency of the data is improved to some extent.

The invention is applicable to the technical field of computers, and provides a data synchronization method and a device. The method comprises steps: a first list is built, wherein synchronized folders are recorded in the first list; layer-by-layer scanning is carried out on folders in need of synchronization; whether the currently-scanned folder is recorded in the first list is judged; if the currently-scanned folder is recorded in the first list, files in the next level directory of the folder are synchronized, and folders in the next level directory of the folder are scanned continuously; if the currently-scanned folder is not recorded in the first list, layer-by-layer scanning on the folder is stopped, and backup of all data in the folder is carried out. A magnetic disc scanning process in data synchronization is simplified, folders which are not synchronized yet are recognized quickly, total consumed time for data synchronization is reduced, and the data backup efficiency is improved.

The invention discloses a method and a system for backing up terminal data. The method comprises the following steps: 1. a terminal index table is established, wherein the terminal index table comprises terminal index entries corresponding to the terminal data; 2. terminal equipment checks up information in the terminal index entries, transmits the information in the terminal index entries and / ordata content corresponding to the terminal index entries to a network server, and modifies the terminal index table; and 3. the network server establishes a server index table corresponding to the terminal index table, conducts backup operation according to the information and / or the terminal data, and modifies the server index table. By establishing two corresponding index tables on the terminalequipment and the network server, the method and the system simplify the check-up process, can quickly check out data state, save the memory resources of the terminal equipment, and improve backup efficiency.

The invention discloses a method and apparatus for realizing allochthonous hot backup. In the invention, two servers having backup relationship share a virtue IP address and are respectively located in different access networks; each server is connected with Home Agent HA by different access routers; each access router is configured with the virtue IP address as intercept address; the method comprises: the two servers select the host and standby unit; the host carries the free address in broadcast of the local two network to analyze the ARP message; the access router connected with the host intercepts the message; the export address on the access router of the virtue IP address is registered on HA; HA transmits the message sending to the virtue IP address according to the export address of the access router of the virtue IP address. The invention improves the reliability of allochthonous backup.