59results about How to "High recovery success rate" patented technology

The invention discloses a rapid restoring method for a virtual network based on a multi-commodity flow problem model, which comprises a communication protocol between a bottom network provider and a service provider, a restoring process for failed virtual network mapping, a coping strategy for unsuccessfully-restored virtual net mapping, and a method for recording failure times of each node link in a physical network. The rapid restoring method for the virtual network based on the multi-commodity flow problem model better adapts to the current internet environment, has effective and rapid running process, and has very high recovery success rate; moreover, the running result of the rapid restoring method for the virtual network based on the multi-commodity flow problem model better improves the loading balance of the network.

The invention discloses a method for restoring arbuscular mycorrhizal fungi of a vegetative cover in a land with discarded iron tailings of a grassland ecosystem, and relates to the technical field of ecological restoration of vegetative covers in a land with discarded metal tailings. The method for restoring arbuscular mycorrhizal fungi comprises the following steps of: (1) covering earth on iron tailings for 3 to 7 centimeters deep; (2) inoculating arbuscular mycorrhizal fungicides such as Glomus versiforme and the like at the place 0 to 3 centimeters far from the earth; (3) planting plants such as Elymus dahuricus Turcz and the like, harvesting the plants after 60-day to 120-day growth, using the plants which meet a relevant standard as feed, and centralizedly burning and landfilling the plants which do not meet the relevant standard. The method for restoring the arbuscular mycorrhizal fungi has the following advantages that: the adopted arbuscular mycorrhizal fungi symbiose with herbs easily so that the absorption and utilization of nitrogen, phosphorus and potassium are promoted, the absorption or transferring of heavy metals is reduced, the thickness of covering earth is reduced, the growth situation of plants is improved, the planting and growth of plants in iron tailings covered with earth are promoted, the method for restoring the arbuscular mycorrhizal fungi has high success rate of revegetation, simple process and lower cost, and is applicable to management of lands with discarded iron tailings of grassland ecosystems.

The invention belongs to the gas field exploitation research field, and especially relates to a method for evaluating reproduction potential of a tight gas reservoir watered gas well. The method includes the following steps: determining a reproduction goal of a tight gas reservoir watered gas well on the basis of the geological and exploitation features of the gas well; utilizing a hierarchy analysis method to establish a hierarchical structure model for different reproduction potential evaluations of the watered gas well; through the hierarchical structure model, constructing a judging matrix and determining weights of all evaluation factors; and utilizing a fuzzy mathematics comprehensive evaluation method to make remark and grading standards for all indexes, and establishing a target gas well comprehensive evaluation transformation matrix. A fuzzy mathematics comprehensive evaluation calculating model for a target gas well is determined on the basis of the weights of the indexes and the target gas well comprehensive evaluation transformation matrix, so that reproduction potential comprehensive evaluation values of the watered gas well are obtained and an optimal reproduction sequence of the gas well is determined. The method of the invention enables degrees of the advantages and disadvantages of the evaluation factors and comprehensive evaluation of reproduction potential of the watered gas well to be obtained, and is a scientific and effective method for reproduction of the tight gas reservoir watered gas well.

The invention discloses a fragmented file data recovery method. The fragmented file data recovery method comprises the following steps of S1 carrying out analysis to obtain partition information; S2 finding a file system idle area; S3 selecting the type of a file needing to be recovered; S4 searching the file header characteristic; S5 judging whether the file header characteristic is found out or not; executing S6 when the file header characteristic is found out; executing S7 when the file header characteristic is not found out; S6 recombining the file in dependence on the file header characteristic, and executing S8 after the recombination is successful; S7 carrying out file recombination in dependence on a pre-stored file storage mode, and executing S8 after the recombination is successful; and S8 extracting the file which is recombined successfully. Beneficial effects of the fragmented file data recovery method are that the file header can be found out according to the file header characteristic, and the data content of the file can be found out according to the file header, under the condition that the file header is lost, fragments in the file system can be found out according to the file format or code known in advance, the fragmented file is checked, whether the data is correct is judged, ordered recombination is carried out to the fragment data, the aim of recovering an incomplete fragmented file is reached, and the data recovery success rate is high.

The invention discloses an SQLServer database based data recovery method, comprising the following steps: S1: determining a data table of a database; S2: obtaining all information of the table; S3: obtaining a logic structure relation of records; S4: obtaining specific information of fields; S5: obtaining data recovery logic structure features; and S6: forming a data table form by data and performing extraction. The method has the beneficial effects as follows: an SQLServer analyzes the records and the fields in the data table through a database structure; the head of each record and structure division data of the fields are found and extracted; the data recovery efficiency is high; a fragment-grade database with corrupted and discontinuous data also can be subjected to normal extraction and recovery; the success rate of data recovery is high; and the loss caused by database damage is effectively reduced.

The invention proposes a recovery method for multicasting service connection in an automatically switched optical network, which includes the following steps: a root node calculates and establishes an optical multicasting tree according to a multicasting service demand and sets multicasting service attribute and a multicasting ID, and simultaneously sets recovery strategy for branch nodes; various network elements in a network detect that a fault happens to nodes and / or links; the node network element detecting the fault searches for the service connection on the invalid link and / or the service connection among the invalid network elements; if the service connection comprises the multicasting service connection, the node network element sends the signaling message containing the invalid link and / or invalid node to the branch node network element of the multicasting service connection; the branch node combining the set recovery strategy recalculates one restoration route or one restoration multicasting tree route with the branch node network element serving as a source and a leaf node influenced by the fault serving as a destination; and the branch node starts signaling process of establishing the restoration route or the restoration multicasting tree and sets the attribute and the multicasting ID same in the original service connection for the new service connection.

The present invention discloses an Oracle database based data recovery method comprising the following steps: S1: determining a data table of a database; S2: obtaining all the information of the table; S3: obtaining a recorded logical structural relationship; S4: obtaining specific information of fields; S5: obtaining logical structural features of data recovery ; and S6: composing data into the form of the the data table, and extracting the data. The present invention has the following beneficial effects: the records and fields in the data table are parsed by virtue of an Oracle database structure, the head of each record and the structure division data of the fields are found and then are extracted, the data recovery efficiency is high, the data destruction and the data discontinuous fragment level database can also be normally extracted and recovered, the data recovery success rate is high, and the loss caused by database damages is effectively reduced.

The invention requests to protect a D2D video distribution and precaching method based on network coding. The method comprises the following steps: a multi-hop D2D network is firstly created, a node maintains a neighbor cache information table, each device terminal node periodically floods the own cache information message in a certain range, and a neighbor device receives the message and then updates the neighbor cache information table according to the message; when a user node wants to acquire a certain video, a video acquisition request is sent to all seed nodes that own the video files according to the neighbor cache information table, the seed nodes send the coded video data to the user node after receiving the request and add related packet header information; and the video coding data VDData is subjected to multi-hop transmission and cache in the network, and an intermediate node implements recoding, forwarding and precaching on the video coding data VDData until the video coding data reaches a destination user node. According to the D2D video distribution and precaching method disclosed by the invention, the local cache hit rate of D2D can be successfully increased, and the load of base stations can be reduced to a maximum extent.

The invention provides a method and device for restoring account information from traffic, equipment and a storage medium, and belongs to the field of network security, which can solve the problem that an existing account number restoration success rate is low. The method for restoring the account information from the traffic comprises the following steps: S1, general event analysis: an event processing module carries out configuration analysis on an account; s2, login interface automatic identification: a login interface module identifies a login interface according to the URL keyword; s3, manual identification of the login interface: the login interface is identified by the system according to the URL keyword input by the user; s4, login event analysis: whether the login event comprisesan account field or a login certificate field is judged; s5, complete event analysis: the flow is analyzed, and a relation pair of an IP, a login certificate field and an account field is established;s6: incomplete event analysis: an IP and account field relation pair or an IP and login certificate field relation pair is established; s7, complementing of the relation pairs; and S8, account information obtaining. The method has the advantage of high account restoration success rate.

The invention discloses a code mode-based document data recovering system and a quick recovering method thereof. The system comprises an input unit, a code rule storage unit, a code combination rule storage unit, a data retrieval unit, an effective code judging unit, an effective code extracting unit, an effective code storage unit, a code recombination unit and an output unit. The code mode-based document data recovering system is characterized by the effective codes of the document data, recovers various documents by extracting the codes which are effective codes in a storage medium and can recover document data files which are characterized by losing file signature, file final character and the like and recover various kinds of written information which is not covered by other files. The document recovering system and the quick recovering method thereof have the characteristics of high document identification rate and high searching speed, and can find fragments of damaged documents, extract the fragments of the damaged documents from the storage medium and greatly improve the current document recovery success rate.

The invention discloses a data recovery method for RAID6. The data recovery method comprises the following steps: S1, retrieving DBR for NTFS partitioning in all discs; S2, retrieving the start position of an MFT sheet in DBR; S3, calculating the size of an array band; S4, calculating the start position of an array; S5, judging a check region, and regrouping the array; S6, recovering lost data. The data recovery method for RAID6 has the benefits that DBR characteristic and MFT characteristic can be utilized to perform quick scan and obtain a whole array structure, data in a data region and check region are accurately distinguished, data matching regrouping is performed by utilizing a common array arrangement manner of RIAD6, and lost data in one hard disc and two hard discs can be recovered. The speed of analyzing the whole array structure is high, the data regrouping speed is high, and the success rate of data recovery is high.

The invention proposes a calculation method for automatically switched optical network multicasting service routing, which comprises the steps that: a root node calculates and establishes an optical multicasting tree and sets the multicasting service attribute and the multicasting ID, and carries out the setting of the recovery strategy of the branch node and informs the branch node of the information of the leaf node below the branch node; various network elements in the network real-timely detect that the node and / or the link malfunctions; the node network element detecting the link failure and / or the downstream node failure searches the multicasting service connection on the ineffective link and / or bear between the ineffective network elements; by combining the set recovery strategy, the branch node calculates the multicasting routing with the failure node and / or the upstream branch node network element of the link serving as the source and the downstream node or leaf node serving as the lunar station; the branch node begins to restore the signaling process of establishing the routing, sets the new service connection to be the same with the original service connection attribute and the multicasting ID and informs the multicasting root node of updating the multicasting routing information.

The invention relates to the technical field of network communication, in particular to a method for recovering a multicast routing tree by proactive reconstruction in an overlay network environment. In the method, a node backup protection mechanism reconstructs and recovers a disaster tolerance mechanism of a failed multicast tree communication route in an overlay network; and aiming at the problem of low recovery efficiency caused by dependence on backup of the proactive overlay multicast routing tree recovery method, a method for detecting backup effectiveness between a target node and a backup node is introduced into a global search backup father node strategy and dependence which exists between the backup father node and the protected target node is limited, so that the success probability of recovering a failed overlay network multicast routing tree is improved. The method can greatly improve recovery success rate while slightly reducing recovery time efficiency and is favorable for constructing an overlay network multicast tree with reliable self-recovery capability.

The invention relates to the technical field of a computer network and particularly discloses an all optical network business restoration method based on bandwidth compression, which comprises the following steps of: S1, reducing a bandwidth required for restoring a failure business from two aspects: 1) first compressing a protection bandwidth between channels through a specific restoration route strategy to obtain a restoration route; 2) utilizing the controllable modulation order characteristics of an all optical network to compress the bandwidth required by the failure business self if network resources for the normal restoration of the failure business are insufficient on the restoration route; S2, allocating required frequency spectrum resources for the failure business in the restoration route so as to restore the transmission of the failure business. The invention has the advantages that with the restoration route strategy, the protection bandwidth between the channels can be compressed, the utilization rate of the resources and the protection restoration success rate are improved, and the network survivability is enhanced; with the mode for improving the modulation order, the bandwidth required by the business self can be compressed as far as possible under the condition of ensuring certain signal quality, and the business restoration success rate can be effectively increased.

The invention provides a method and a device for recovering data of a mobile terminal. The method comprises the steps of loading a mobile terminal image file and a mobile terminal image source identifying base; matching coding features of the mobile terminal image file by utilizing the mobile terminal image source identifying base, and identifying the source mobile terminal of the mobile terminal image file; loading a data rule base of the source mobile terminal; invoking rules in the data rule base of the mobile terminal, and performing coding rule matching for the mobile terminal image file so as to obtain effective data or fragmented data; and decoding the effective data or the fragmented data according to the rules in the data rule base of the mobile terminal, and recovering the data of the mobile terminal. By the method, all uncovered data on the mobile terminal can be recovered completely, and partially covered fragmented data on the mobile terminal also can be recovered, and the method has the advantages of high recovery success rate, fast searching speed, complete recovered data, and the like.

The invention discloses a balanced protection sliding window code transmission method. The method comprises the steps of obtaining rank distribution of a transmission matrix according to a link condition; obtaining an expected rank according to the rank distribution, and setting the size of each batch coding packet subjected to batch processing to be greater than the expected rank; according to the rank distribution, obtaining degree distribution of a batch coding packet and transmission efficiency corresponding to the degree distribution; establishing a sending window with a fixed length andacquiring the number of coding packets needing to be sent by a single window according to the window length and the transmission efficiency. According to the degree distribution, the expected rank, the window length and the number of the coding packets needing to be sent by the window, performing data sending in a mode of combining a sliding window and batch coding. The concept of batch processingof the BAST codes is fully utilized, transmission with certain redundancy is carried out by utilizing the sliding window, the data recovery success rate under the condition of high packet loss is improved, and the reliability is improved.

The invention discloses a distributed storage system, a data recovery method and a device thereof, and a computer readable storage medium. A plurality of storage nodes used for carrying out redundantstorage on the same data in the distributed storage system serve as a redundant backup group. The method is applied to a main storage node in a redundant backup group, and comprises the following steps: receiving a data acquisition request sent by a slave storage node in the redundant backup group; reading each piece of data needing to be sent to the slave storage node from the local; judging whether each piece of data is abnormal so as to determine the abnormal data as target data and postpone the sending of the target data; judging whether a target slave storage node storing complete backupof the target data exists in the redundant backup group; and if the target slave storage node exists, performing local data recovery based on the complete backup of the target data, and sending the locally recovered target data to the slave storage node. According to the method, a data recovery mechanism can be reasonably optimized, server hang-up is reduced, and the stability and sustainability of the service are improved.

The invention discloses a recovery method of automatically switched optical network multicast service and multicast tree, which comprises root node calculation and optical multicast tree establishment, multicast service property and multicast ID setting, branch node recovery strategy setting and information on leaf node under branch node informing. Each network element in the network detects fault that occurs on the nodes and link circuits and searches for the multicast service connection beard between invalid link circuits and / or invalid network elements. The branch node, combines with the set recovery strategy, originates from each fault node and / or the upstream branch node network element of the link circuits and lodges to the downstream or leaf node to calculate a plurality of multicast routes; or the branch node originates from all fault nodes and / or the upstream branch node network elements of the link circuits and lodges to the downstream or leaf node to, establish multicast tree. The branch node recovers new multicast tree establishment and sets the properties of new service connection and original service connection, which are the same as the multicast ID.

The invention discloses a local and distributed collaborative design reliable flash memory storage method and system, and the method comprises the steps: enabling a flash memory conversion layer to send flash memory reliability information to a host when flash memory equipment is connected to a host system, and enabling error data information to be sent to the host when the flash memory equipmentreads data errors; the host carries out data recovery on the error data, obtains correct data from a remote copy or an erasure code by utilizing a distributed fault-tolerant mechanism to help recoverthe error data, obtains the correct data from a party completing data recovery first, and sends the correct data to the distributed storage system; and when the distributed fault-tolerant mechanism cannot provide the correct data required for recovering the error data, the distributed storage system obtains the original data from the flash memory device where the correct data copy is located so asto recover the error data. The method can comprehensively manage the reliability mechanism of the distributed storage system and the local flash memory device, reduces the read operation delay of thesystem, improves the local data recovery efficiency of the flash memory device, and enhances the reliability of the storage system.

The invention discloses a method for calculating a preset recovery route, comprising the following steps of: acquiring a preset rate of links of the whole network, wherein the preset rate is a ratio of bandwidth of each link used for a preset recover route to the bandwidth of the link; and calculating the preset recovery route of a service according to the preset rate when a default preset recovery route of the service is invalid. The invention also provides a corresponding device. By adopting the method and device for calculating the preset recovery route, disclosed by the invention, the preset rate is introduced, thus a control plane calculates the preset recovery route for the service according to the preset rate, recovery success rate can be greatly improved when multiple services have a fault at the same time, the problem that multiple services with the same attribute can not be successfully recovered at the same time in the existing preset recovery route technique is solved, and service quality of the service is improved.

The invention discloses a data backup method, device and system. The method comprises the following steps: backing up an updated incremental log to storage equipment by monitoring incremental log change; synchronizing a last log identifier in the incremental log to second equipment in a standby equipment state; and when monitoring that first equipment is switched from a main equipment state to thestandby equipment state, stopping monitoring the increment log change. The technical problem of data recovery failure during fault recovery easily caused by large backup data volume and low backup speed of the backup log in the prior art is solved.

The invention discloses a data recovery method based on a large database. The data recovery method comprises the following steps that S1, a database backup or a database design document is found out; S2, a data table needing data recovery is found; S3, the logical structure relation of records is determined; S4, structures of fields are determined; S5, all record heads are analyzed; S6, the fields are separated; S7, data is extracted. The data recovery method has the advantages that the records and fields in the data table are parsed by adopting a database structure, structural division data of heads of all the records and the fields is found and then is extracted, the data recovery efficiency is high, fragment-level databases with damaged data and discontinuous data can be also normally extracted and recovered, the data recovery success rate is high, and loss caused by database damage is effectively reduced.

The invention provides a notification device and a method of an ASON fault, which are based on a serial homologous mechanism. The system includes a processing module of a fault message, a connection and storage module of the fault, a filtering module of a homologous connection, a parameter control module of serial time and a sending module of the fault message, which are connected orderly. The processing module of the fault message is used to process the fault message in an automatically switched optical network. The connection and storage module of the fault is used to store the connection message influenced by the fault. The filtering module of the homologous connection filters the records which have the same source node from the connection message stored in the connection and storage module of the fault and makes the sending module of the fault message send the fault notification message corresponding to the source node. The parameter control module of a serial time adjusts the delay dynamically when the sending module of the fault message sends each fault notification message. The invention can reduce the fault notification times and improves the success ratio of restoring the path building in addition to slowing down the decline of the restoration ratio, which is brought by the resource reservation collision.

The invention discloses a method for restoring a capacity abnormity of a Seagate hard disk. The method comprises the following steps of: S1: the hard disk entering an instruction mode, a T-level mode and a 1-level mode, reducing an SMART table, if a reduction error occurs, executing the step S2, or if the reduction is successful, executing the step S3; S2: reducing a Congen parameter of the hard disk; S3: clearing a G table; and S4: restoring hard disk capacity. The method has the beneficial effects as follows: the hard disk capacity attempts to be restored in four different modes, and the success rate of restoration is high due to the application of stepped restoration means; and the problems that LBA is equal to 0 and LBA is equal to 1 can be dealt with and the capacity abnormity problem not caused by the fact that the capacity is shorn can be solved.

The invention provides a grading early warning protection method in a frequency spectrum variable network, comprising steps of selecting a previous hop node and a next-hop node of two terminal nodes of a damaged link in a route the business of which has a corresponding modulation format when an OSNR value in the link reaches a protection resource reserved threshold, and performing redistribution and calculation of the paths and frequency slots by utilizing an optimal frequency variable protection algorithm. When the OSNR value reaches a protection switching triggering threshold, the corresponding modulation format is adopted and the business which was successfully reserved is switched to the paths and the frequency slots which were computed. If the OSNR value rebounds to a level above the resource reservation triggering threshold, the protection resource reserved by the business adopting the modulation format is released. The invention can provide hierarchical rerouting and a recovery strategy for non-continuity frequency spectrum distribution to the link failure in a wavelength changeable elastic network.

The invention provides an ionic type rare earth abandoned mining area soil Cd pollution remediation method, and relates to the technical field of soil remediation. According to the ionic type rare earth abandoned mining area soil Cd pollution remediation method, the ionic type rare earth abandoned mining area soil is remedied through combination of abandoned rare earth tailing pioneer plants and indigenous fungi, and the ionic type rare earth abandoned mining area soil Cd pollution remediation method has the advantages that the plant remediation success rate is high, the effect is good, the technical process is simple and convenient, construction is easy, and the Cd content and the water and soil loss rate of the soil can be obviously reduced; and compared with similar methods, the ionic type rare earth abandoned mining area soil Cd pollution remediation method is low in cost, attractive, safe and easy to popularize and apply, and has huge application prospects and market requirements. According to the embodiment of the ionic type rare earth abandoned mining area soil Cd pollution remediation method, bacterial liquid of trichoderma and / or penicillium oxalicum is inoculated in the ionic rare earth abandoned mining area in the southern rainy region, the herbaceous or shrub plant seeds are dibbled, so that Cd in soil is obviously absorbed, the biomass of plants is improved, the ecological restoration effect of vegetation is good, and the ionic type rare earth abandoned mining area soil Cd pollution remediation method is suitable for rapid treatment of Cd pollution in rare earth tailing wasteland in the southern rainy region.