85results about How to "Reduce backup time" patented technology

The invention discloses a data organization method for a backup service software storage server side for improving data organization and data management efficiency of the storage server side. The method comprises the following steps: (1) initializing a storage space of the storage server as a metadata area (comprising main record, index head and data index) and a data area; (2) receiving and judging a user operating command, sequentially performing a backup operation, recovering the operation and turning to step (4), and canceling the operation and turning to step (5); (3) processing a user backup operation, backing up user data to the data area of the storage server, meanwhile avoiding repeated data backup by using repeated data canceling technology, and turning to the step (2); (4) processing the recovery operation, positioning and searching a recovered data list specified by a user in the data area of the storage server, then transmitting the recovered data list to a user side, and turning to the step (2); and (5) processing the canceling operation, searching the canceled data specified by the user, introducing counting according to backup data blocks of the data in the data area of the storage server to perform corresponding processing, and turning to the step (2). The method improves the utilization rate and manageability of the storage server side and the expandability of the system, saves the network bandwidth, and improves the backup efficiency.

The invention relates to a method for deleting duplicated data in a file system in real time, and belongs to the technical field of computer data storage. In a file system establishment stage, a file metadata table, a data block index and a file constitution table are set in an embedded database; and in a file system operation stage, operating commands initiated to the file system by applications are received and responded through a file system driver, and include establishing a new file, writing data to an existing file, reading data from the existing file and deleting the existing data. The method simultaneously supports fixed-length and variable-length file blocking methods, and can delete the duplicated data in the file system in real time, save storage space and improve the utilization efficiency of storage equipment; and the process of deleting the duplicated data is completely transparent to the applications and a user, the file operation of various conventional applications is seamlessly compatible, and almost all negative effects on the user experience are avoided.

The invention provides a mirror image snapshooting based on virtual machine backup system which is used for backing up virtual machine information in a virtual platform. The backup system comprises a backup server, a virtual management module, a mirror image snapshooting module and a snapshot comparison module, wherein the backup server is used for storing backup information of at least one virtual machine; the virtual management module is used for selecting the virtual machines required to be backed up; the mirror image snapshooting module is used for creating snapshots for disk mirror images of the virtual machines; and the snapshot comparison module is used for judging whether backup records of the selected virtual machines exist in the backup server and comparing the existent backup records with the created snapshot information if the backup records exist to store and back up differential information in the backup server. According to the system, the mirror image snapshooting module is utilized for snapshooting the virtual machines as needed, and the differential information is quickly extracted for backup storage when the mirror image snapshots of the virtual machines are not the same as the backup information, so that the utilization efficiency of mirror image storage is improved. Furthermore, the invention provides a backup method.

The invention discloses a block level backup method based on content address storage, which comprises the steps that A, according to a size and a threshold of a predefined data segment and a source volume state bitmap, and by taking a data block as a unit, and a continuous 1 sequence in the source volume state bitmap as a basis, a source volume data area is segmented, and each single segment is named as a data segment; and B, according to a fingerprint algorithm, a data segment fingerprint is computed, an old fingerprint of each data segment is acquired by querying a fingerprint library, whether each data segment is a repeating data segment or a non-repeating data segment is determined, each non-repeating data segment is transmitted to a storage medium by a network, and the fingerprint library is updated. The invention further provides a client based on the content-addressed storage and a network storage system. With the adoption of the technical scheme, high-efficiency de-duplication can be achieved.

The embodiment of the invention provides a backup method and device. The method comprises the following steps of: at the current incremental backup time, creating a snapshot at the current backup time; according to the differential bitmap created at the previous backup time and the snapshot at the current backup time, carrying out the incremental backup; and the differential bitmap being created at the previous backup time, and being updated along with the change in data in a source follower disk before creating the snapshot at the current backup time. The differential bitmap is created at the previous backup time and is updated according to the change in data in the source follower disk between the two backup times, so that the backup can be carried out according to the differential bitmap which is created at the previous backup time and is updated along with the change in data in the source follower disk between the previous backup time and the current backup time, and the bitmap can be generated without snapshot comparison at the current backup time, so that the backup time is shortened, and the overall performance of backup is improved.

The embodiment of the invention provides a data backup method and device. The method comprises the steps of acquiring a final copy position of copied data in a binary system log file of a main database from a database during data backup in the database from the database based on a GTID (Global Transaction Identifier) mode; and acquiring a target binary system log file where the final copy position is located and a binary system log file behind the target binary system log file from the main database. According to the data backup method, during backup in the database based on the GTID mode, the backup data volume is reduced, the storage space occupied by the backup data is reduced, the backup time is reduced, and meanwhile, PIT (Point-In-time) recovery is effectively supported. Moreover, the embodiment of the invention provides a data backup device.

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 discloses a database backup method and device. Data tables in a database are classified into historical data tables and real-time service data tables; full-volume backup is conducted on the service data tables; incremental backup is conducted on the historical data tables; the backed-up service data tables and historical data tables are stored in a medium to complete backup of the database. Due to the fact that historical data in a large mysql database occupies a large amount of storage space and real-time service data is less, the historical data tables and the real-time service data tables are backed up in a separated mode, the data volume each time of backup can be decreased, the backup time and recovery time can be shortened, and the backup speed can be improved. It is thus clear that backup of the database in a large mysql database scene is rapidly achieved, the backup recovery time is decreased, backup file space occupation is decreased, and the backup recovery efficiency and the safety guarantee capability of the database are improved.

A load control system includes: a power supply control unit for controlling a power feeding to multiple load devices; and a backup power supply unit for supplying backup power during a power failure. During a power failure, the power supply control unit supplies the power from the backup power supply unit only to a part of load devices selected among the load devices, and the load devices are devoid of communications function for communicating with the power supply control unit.

The invention relates to an Oracle multichannel parallel backup and recovery method. The method comprises the following steps: establishing a plurality of channels for sending Oracle data blocks through a media management library; opening a plurality of threads through a backup software client to be paired and connected with the channels; reading the data of a database in parallel through the channels to generate data blocks in a fixed size; sending the data blocks to the backup software client in parallel; receiving the data blocks sent by corresponding channels through the threads of the backup software client; and sending the data blocks onto a remote storage. Compared with the prior art, the Oracle multichannel parallel backup and recovery method has the advantage that parallel data transmission is utilized to improve the data transmission efficiency so that the data backup and recovery time under Oracle big data background is effectively shortened.

The invention provides a database table backup method and device. The database table backup method comprises the flowing steps of (1) obtaining a backup table inventory and generating into a backup table inventory file according to a backup mode; (2) generating into backup tasks according to backup parameter information; (3) generating into an operational control file according to information of the backup tasks; (4) reading the operational control file, judging operational states of the backup tasks and carrying out a step (51) if the operational state is that the backup is unfinished; (51) submitting the backup tasks and starting backing up; (6) performing monitoring scanning on the operational states of the backup tasks until all backup tasks achieve backup. The database table backup method has the advantages of greatly shortening the database backup time and being safe and efficient; enabling interfaces to be integrated and being capable of timely displaying the backup operational states and faults such as abnormal termination; accordingly improving the backup operating speed, speeding up fault response speed and reducing backup operational risks.

The invention provides a data index method and a server based an edition vector. The data index method and the server based the edition vector are characterized by comprising that a server-side read current data in a backup process, and a mapping relation can be built between a data block hash value and a data block position. The server-side is provided with a Ve in the latest edition. Combined with an edition Vi in a last time data index, the edition scope of a index in current time can be ensured from a Vi to a Ve. A hash table and an index can be downloaded in an internal memory to complete an initialized mission. The server-side read all edition files from a metadatabase, wherein indexes are arranged inside the all data files. Information which is relevant to the files are added into the hash table to complete a file hash index. According to a data index method and the server based the edition vector, the index is only needed to build to a data block indicator about the repeating data. The method is more efficient and capable of saving the time of building the data index.

The invention discloses a picture cloud backup method, a device and electronic equipment. The picture cloud backup method comprises steps that, to-be-backuped pictures are acquired; attribute information of the to-be-backuped pictures is acquired; the to-be-backuped pictures are filtered according to the attribute information of the to-be-backuped pictures; and the filtered to-be-backuped pictures are uploaded to a cloud server. According to the cloud backup method, the device and the electronic equipment, the to-be-backuped pictures are acquired, the attribute information of the to-be-backuped pictures is acquired, the to-be-backuped pictures are filtered according to the attribute information of the to-be-backuped pictures, the filtered to-be-backuped pictures are uploaded to the cloud server, pictures without backup values can be identified and are filtered, filtering the large-scale pictures without the backup values can be avoided, backup time is shortened, and backuped pictures in the cloud server can be conveniently and rapidly queried by users.

The invention provides a data restoration method based on version vector, and a server. Both a client side and a server side store a version tag of each backed file and a version tag of each restored file. When the client side requests for data restoration, the server side determines whether requested data is stored on the client side or not according to the version tag provided by the client side, deletes the data which are stored on the client side, and transmits only an indicator of repeating data to the client side. The repeating data deletion method based on version requires only transmission of the version vector of the restored data block, the method is more efficient, network bandwidth is economized, and restoration time is reduced.

At the start of a backup operation, the controller of a disk array apparatus makes a copy of an address translation table and searches for a valid logical address based on the copy. From the disk array, the controller reads a physical stripe including a data block of a physical address corresponding to the valid logical address searched for. The controller writes a data block corresponding to a valid logical address included in the read physical stripe in a mass storage device.

A back-up device of internal memory is prepared as connecting internal memory to waiting storage controller being used to latch address bus and data bus of internal memory, copying content of internal memory into nonvolatile storage connected with waiting storage controller by waiting storage controller when internal memory bus is on idle state for finalizing internal memory back-up, connecting waiting storage controller on bus of internal memory and setting operation of internal memory controller to be prior than that of waiting storage controller.

The invention discloses a real-time online comprehensive compensation device for voltage sag of a distribution network and a method thereof. Through arranging a device on a high voltage side or a lowvoltage side of a distribution transformer, voltage is dynamically adjusted and output. The device can solve problems of voltage sag and power quality exist commonly in a distribution network, and effectively guarantees reliability of sensitive load power consumption. The device solves problems that a traditional voltage sag compensation device has insufficient compensation depth and difficult maintenance, and can reduce energy consumption, save installation space and reduce equipment operation cost, and has good economic benefits.

The invention relates to a synthetic backup method, a device, a computer device and a computer-readable storage medium of a MySQL database. The method comprises: if the database to be backed up is thefirst backup, the database is backed up completely; if the database is the second backup, the database is backed up completely; if the current database to be backed up is not the first backup, the incremental data between the current database to be backed up and the last backed up database is obtained, and the incremental data is backed up; the backed up incremental data is synthesized into the last backed up data to generate the current number of backups. The composite backup method of the MySQL database comprises the following steps: the first backup is performed for full backup, and the subsequent backup only needs to synthesize the incremental data into the last backup data, so that the backup time is shortened to the time of backing up the incremental data; the new backup data obtained from each backup is a virtual full backup, and only incremental data is stored between two consecutive virtual full backups, which saves storage space. Effectively improves the efficiency of backups and reduces the storage space used by backups.

The invention provides a method for realizing remote rapid backup by utilizing a common Internet network. The method is characterized in that a fingerprint technique is adopted to identify a specific file from the redundant backup of the whole enterprise, so that the transmission and storage of redundant data are not required, and the quantity of data transmitted on a wide area network is greatly reduced. The method comprises the following steps of: only installing lightweight agent software for a small-size remote branch structure; for a large-middle-size remote branch structure, distributing a storage pool which consists of a wave server and a storage array and is used for storing the data of the branch structure; distributing a large-size storage pool in a headquarter backup center; carrying out global repeated data deletion on the data of the remote branch structure and then transmitting to the headquarter backup center through the wide area network; transmitting the data of the backup center to a remote disaster tolerance center through a broadband optimization mode so as to achieve the remote concentrated backup and the remote disaster tolerance of enterprise data at the wide area network environment; and locally implementing global unique file and field section identification by the lightweight agent software installed on a client. According to the invention, increment data just need to be transmitted on the network, so that the backup broadband is reduced by 50% or above.

The invention discloses an incremental backing up method and system based on a data block and relates to the field of data block backing up. The method comprises the steps that whether the content of the data block to be backed up already changes or not is judged by verifying a digital fingerprint of the data block to be backed up; if the content of the data block changes, incremental backing up is performed; if the content of the data block does not change, backing up is not performed. Compared with the technology of performing incremental backing up by judging the update time of data in the prior art, repeated backing up of the data of which the time is updated and the content does not change is avoided; in this way, the backed up data size is reduced greatly, the backing up efficiency of stored data is improved, it is guaranteed that small pressure is brought to a storage system in the process of backing up the data block under the condition that the storage system keeps a working state, the consumed time of backing up is shortened, and the disaster recovery risk of backing up is also lowered.

Recording devices 41, 42 have data storage units 12, 22 using disk-shaped storage media, data allocation storage units 13, 23 for storing allocation information of each stored data, and control units 51, 61 for writing and reading data using the allocation information in the data allocation storage units 13, 23, and also have use status storage units 52, 62 for storing use status information indicating each storage area in the data storage units 12, 22 is a valid area having data written therein or an invalid area having no data written therein. If the control units 51, 61 receive a read request for the data stored in the data storage units 12, 22, the control units 51, 61 select only data of valid areas using the use status information in the use status storage units 52, 62 and read out the data.

The invention discloses a method and a system for retrieving FLASH data from a mobile telephone, and the mobile telephone. The method comprises the following steps of: setting at least two keyboard unlocking passwords in a user management setting module of the mobile telephone, wherein one of the keyboard unlocking passwords is an administrator user account number password, while the others are limited user account number passwords; when the frequency of receiving wrong passwords by the mobile telephone exceeds the preset value, copying the FLASH data of the mobile telephone to a mobile data server through a wireless network by using the user management setting module; and sending user authentication information to the mobile data server through the wireless network by using the mobile telephone, and after the user authentication information passes authentication, sending the copied FLASH data to the mobile telephone through the wireless network by using the mobile data server. The mobile telephone comprises the user management setting module and can prevent the FLASH data from being stolen and retrieve the FLASH data, so that the loss of a user is farthest reduced.

The invention provides a data backup system and method, which comprises a source storage and a destination storage, wherein, the data backup system comprises a generating and reading unit of backup information, which is used for generating and reading backup configuration information, and leading the data backup system to selectively backup at least one part of data stored in the source storage into the destination storage. The method comprises steps which are acquiring the backup configuration information; and selectively backing up at least one part of data stored in the source storage into the destination storage according to the acquired backup configuration information. The invention can selectively backup data of the source storage into the destination storage according to user requirements, thus avoiding duplicate data existing in the destination storage device, saving storage space and reducing backup time.

The invention discloses an apparatus and method for the low-cost control of voltage sag and short-term interruption of a power grid. The method employs a double-channel power supply for solving a problem of the quick mutual switching of load power supply reliability and employs the advantages of the conventional DVR, and combines the two sides, so the apparatus can solve a problem of voltage sag and energy quality which commonly exist in the power grid, effectively guarantees the power utilization reliability of a sensitive load, solves problems that the energy storage element in a conventional voltage sag compensation device is expensive and difficult to maintain, can reduce the energy consumption, can save the installation space, can reduce the operation cost of the apparatus, and is very good in economic benefits.

The invention discloses a database backup allocation method and a database backup allocation device. The method includes steps of generating a backup strategy according to IP information of a to-be-backup allocation server and to-be-backup database edition information; analyzing the type of the to-be-backup database and judging if the backup is performed in the backup database according to the backup strategy; if it is, performing backup at the to-be-backup database; judging if the server load of the to-be-backup allocation server can meet the preset backup threshold value; if it is, performing backup on the data of the to-be-backup database according to the backup strategy, and storing the acquired backup data. Through the method and the device, the database backup efficiency is improvedand the stability of a business system is guaranteed.

The invention provides a metadata management method and apparatus, and a distributed file system. The method comprises the steps of calculating differential data of current metadata and backed-up metadata by adopting a differential algorithm during metadata backup; and recovering the current metadata by utilizing the differential data and the backed-up metadata during metadata recovery. By implementing the method and the apparatus, metadata backup and recovery are quickly performed by utilizing a quick differential algorithm and a differential recovery algorithm; an original backup disk space uses order of magnitude reduced to MB from GB; quick backup and recovery of the metadata are realized; and a backup duration of massive metadata of the distributed file system can be shortened to a few minutes from a few hours originally.

The invention discloses a virtual machine data backup optimization method and system. The method includes: step 1, installing VDBA plug-in on a virtualization server, configuring VDBA IP address of the virtualization server, and establishing a safety communication channel between the virtualization server and the VDBA plug-in; step 2, determining selection and backup dispatching and data retentionof a virtual machine to be backed up by the virtualization server,, and assigning and sending to the VDBA plug-in as a selection result; step 3, after the VDBA plug-in receives the selection result,and making virtual machine snapshot according to the selection result; step 4, mounting the virtual machine snapshot on the VDBA plug-in, and judging whether repeating data exist or not; step 5, if yes, clearing repeating data of the virtual machine snapshot to take as backup data; step 6, enabling the VDBA plug-in to transmit the backup data to a backup server. The repeating data are detected anddeleted through the VDBA plug-in, so that storage space is greatly saved, a backup process is accelerated, and backup efficiency is improved.

The invention discloses an automatic data recovery method based on a relational database. The method comprises the steps of full-amount backup and increment backup, wherein in the full-amount backup step, all data of the database is subjected to memory transfer every time, and the backups of all the data are generated; in the increment backup step, only the data which is updated after full backup on the last time is subjected to memory transfer, and the backups of the data are generated. By means of the method, the database can be completely recovered, moreover, incomplete recovery based on some backup time point can be conducted on the database, and meanwhile, the backup time is greatly shortened.

The embodiment of the invention provides a virtual machine backup method and component and a cloud computing system, and relates to the technical field of computers, and the method comprises the steps: receiving a virtual machine backup request sent by a cloud gateway platform, the virtual machine backup request comprising first target virtual machine identification information of a first target virtual machine and a backup demand; determining to-be-backed-up data of the first target virtual machine in the cloud storage platform according to the first target virtual machine identification information; determining a target backup storage pool in the cloud storage platform according to the backup requirement and the to-be-backed-up data; and reading the to-be-backed-up data through a data pipeline technology, and writing the to-be-backed-up data into the target backup storage pool. The virtual machine backup method has universality and can meet backup requirements of all cloud computingplatform users.