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 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 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.

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.

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 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.

A transaction type system processing method is used in a repeating data deletion system. In the repeating data deletion system, pointers of the same data can point to the same position, so that all related indexes need to be changed together frequently when one of the pointers needs to be changed. In the transaction type system processing method, a flag that is a false value is arranged at a server side at first; the server side reads a finger-print value of a data element and judges whether the finger-print value is in accordance with a temporary finger-print value in a high-speed cache of a client side after receiving the data element backup requirement of the client side; the data element and the finger-print value are written in a corresponding temporary storage data block when the finger-print value is inconsistent with the temporary finger-print value; and the data element and the finger-print value are written in a main high-speed cache and the flag is reset when the flag is a true value.