50 results about "Replication (computing)" patented technology

An automated disaster recovery (DR) planning system for a computing environment is provided. A discovery module discovers servers, networks, and storage devices in a computing environment. An expert knowledge base module captures best practices in planning, and capabilities, interoperability, limitation and boundary values for different DR technologies. A match-making module determines multiple DR plans as combinations of one or more replication technologies that can be used to satisfy DR requirements. And, an optimizer configured for assessing a feasible DR plan from said multiple DR plans, to deploy for DR planning of a primary computing environment.

Systems and methods for performing data replication are disclosed. Determining whether to update replicated data typically involves comparison of readily obtainable attributes of a given source file and its corresponding replicated file. Such attributes can be obtained from, for example, metadata. In certain situations, an additional assessment of the source and replicated files can be beneficial. For example, if integrity of an existing replicated file's content is maintained, one may not want to re-replicate the corresponding source file. For large source files, such a decision can provide substantial reductions in expenditures of available computing and network resources. In certain embodiments, a threshold for identifying such large files can be based on one or more operating parameters such as network type and available bandwidth. In certain embodiments, replication file's integrity can be checked by calculating and comparing checksums for the replication file and its corresponding source file.

A computing environment, such as an data mirroring or replication storage system, may need to process synchronous I/O requests having different priorities in addition to handling I/O requests on the basis of synchronous or asynchronous groupings. The system described herein provides a data storage system that addresses issues involving efficient balancing of response times for servicing synchronous I/O requests having different priorities. Accordingly, the system described herein provides for maintaining an optimal response time for the host-synchronous I/O requests and the optimal throughput of non-host-synchronous I/O requests using a host-synchronous request time window within which processing of non-host-synchronous I/O requests is throttled. The host-synchronous request time window may be selected to enable the optimal response time for the host-synchronous I/O and also to minimize the impact on the overall throughput of the I/O processor of the storage device.

The invention discloses a network intrusion detection method, device and system and a storage medium, and the method comprises the steps: initializing a distributed computing system, and enabling a detection node to report node information to a management and control node; distributing a feature rule base to detection nodes of corresponding detection groups, and copying the same service data mirror image traffic to different distributed detection groups by using a stream copying technology; according to the flow copied to the detection group by the flow copying technology, controlling the service data to be shunted to a single detection node or a detection node of the detection group of the same feature rule base; and enabling the detection node to receive the to-be-detected message, perform matching detection according to the feature rule base and output a detection result to the management and control node. Through a technical means of adopting a distributed and parallel computing architecture and shunting a network data stream to a plurality of detection nodes by utilizing distributed and sdn switch stream replication, the technical problem of low detection efficiency during large-flow data in the prior art is solved, and the effect of improving the system detection efficiency is achieved.

Virtual computing instance data that are stored across multiple storage volumes are replicated in a manner such that the write order is maintained. The frequency of the replication is set so that the recovery point objective defined for the VM data can be satisfied. The replication includes the steps of determining a set of logical storage volumes across which the virtual computing instance issues dependent write IOs, issuing a first command to the virtual computing instance to block new IOs and to block receipt of IO acknowledgements, issuing a command to create replicas of all the logical storage volumes in the set, and then issuing a second command to the virtual computing instance to unblock new IOs and unblock receipt of IO acknowledgements.

The invention provides a block chain system for energy transaction based on a V-raft consensus algorithm, and belongs to the field of computer software assembly programs and data security. A V-raft consensus algorithm is used in a consensus layer of the system, and according to the improved consensus algorithm, a node state table is added on the basis of an original Raft consensus algorithm to optimize collapse fault tolerance, and the improved consensus algorithm acts on a leader node election stage and a log copying stage respectively; the condition that the state rotation of the following node becomes a candidate due to unstable network to disturb the node log replication process is reduced, and the time of waiting for the following node to reply a day-ahead replication result by the leading node is shortened. Compared with an existing energy block chain network, the method abandons POW and other consensus algorithms which consume computing power and PBFT and other consensus algorithms which cannot dynamically add and delete nodes, and the improved V-raft consensus algorithm is used on the basis of network access auditing of the alliance block chain to accelerate the consensus efficiency of energy transaction and the concurrent processing speed of the transaction.

The invention discloses a transaction identifier-based multi-computer-room synchronization method, computing equipment and a storage medium. The method comprises the following steps: reading a first write data log record in a log file of a first machine room, and judging whether a domain identifier contained in a transaction identifier of the first write data log record is consistent with a domain identifier corresponding to the first machine room or not; if yes, performing synchronous data writing operation in a second machine room according to the first data writing log record, and recording a second data writing log record of the synchronous data writing operation and a transaction identifier of the second data writing log record in a log file of the second machine room, wherein the domain identifier contained in the transaction identifier of the second write data log record is set as the domain identifier corresponding to the first computer room; if not, neglecting the synchronization of the first write data log record, so that loop replication is broken, the problem of replication loopback in multi-machine-room bidirectional synchronization is solved, and the data synchronization efficiency is further improved due to the fact that the judgment process is simple.

A computer system, computer program product, and method are provided that include: collecting data replicable from a computing device; detecting a risk of the computing device, wherein detecting the risk includes detecting a surrounding environment, a location, a speed, and a condition of the computing device; upon determining that the risk reaches a predetermined threshold, initiating data replication on the computing device; and storing the copied data in a cloud storage system using a 5G network.

A method for more effectively utilizing computing resources in a data replication environment is disclosed. In one embodiment, such a method detects, at a primary system, activity occurring on the primary system. This activity is recorded in systems logs located at the primary system. The method automatically mirrors the system logs from the primary system to a secondary system that is in a mirroring relationship with the primary system. The system logs are analyzed at the secondary system. In the event abnormal activity is detected in the system logs at the secondary system, the method automatically sends, from the secondary system to the primary system, one or more commands that are designed to address the abnormal activity. A corresponding system and computer program product are also disclosed.

The invention discloses a message cross-cluster routing forwarding method and system, and the method comprises the steps that a server obtains a routing rule configuration record written in a distributed coordination system; the server converts the routing rule configuration record into a corresponding routing rule executor by using a routing rule analyzer in the Topic; the server performs routingrule matching on messages needing to be routed in the Topic by utilizing the routing rule executor to obtain a routing cluster list corresponding to the messages; and the server forwards the messageto the corresponding cluster according to the routing cluster list by using a routing duplicator in the Topic. According to the message cross-cluster routing forwarding system provided by the invention, the message cross-cluster routing forwarding method is adopted, and the cross-cluster routing replication forwarding of the message is realized by relying on the distributed coordination system atthe server to perform routing rule configuration, so that the consumption of additional computing resources is avoided, and the maintenance cost is reduced.

Replication of data from a primary computing system to a secondary computing system. The replication is single-threaded or multi-threaded depending on one or more characteristics of the data to be replicated. As an example, the characteristics could include the type of data being replicated and/or the variability on that data. Also, the multi-threading capabilities of the primary and secondary computing systems are determined. Then, based on the identified one or more characteristics of the data, the primary computing system decides whether to perform multi-threaded replication and the multi-threading parameters of the replication based on the one or more characteristics of that data, as well as on the multi-threading capabilities of the primary and secondary computing system.

Disclosed herein are methods, systems, and processes to provide and maintain data consistency during reverse replication. It is determined that a migrate operation or a reverse replication operation has been requested. Upon determining that the migrate operation or the reverse replication operation has been requested, a resynchronization identifier is set in a dirty region log (DRL) associated with a computing device that is subject to the migrate operation or the reverse replication operation. In response to the operation being the reverse replication operation, a master boot record (MBR) sector of a boot disk associated with the computing device is overwritten.

The invention discloses a dynamic task replication method, device and system in an edge computing environment. The method comprises the following steps: establishing an optimization problem by taking the minimum difference regret between the total completion time of a job in an edge environment and the total time delay of job completion under an ideal optimal replication decision as a target; solving an optimization problem by using a task replication decision algorithm based on a multi-armed bandit, comprising the following steps of: estimating a task calculation amount wt according to a task type of a task and the size of input data at the beginning of a first time slot; for each task t, calculating the lower confidence limit of the time delay of copying the task t from the edge cluster i to the edge cluster j, determining all available edge clusters, selecting rt smaller available edge clusters as target edge clusters, and copying the task to all the target edge clusters for execution. According to the method, the algorithm based on the multi-armed bandit is applied to the task replication problem of the edge computing system for the first time, and the method has excellent time delay performance and service reliability.

The present invention includes apparatuses and methods for data replication. An example apparatus includes a plurality of sensing circuitries comprising respective sense amplifiers and computing components; and a controller. The controller may be configured to cause replication of a data value stored in a first computing component such that the data value is propagated to a second computing component.

The invention relates to the technical field of computer algorithms, in particular to a network-on-chip design method oriented to a distributed parallel computing algorithm, a network-on-chip is divided into two layers including a unicast network and a multicast network according to the distributed parallel computing algorithm of the network-on-chip, the unicast network realizes point-to-point propagation among nodes, and the multicast network realizes point-to-point propagation among nodes. Independent operation data required by each operation node is transmitted to each operation node in a unicast mode; the multicast network is a customized multicast network oriented to a distributed parallel computing algorithm and is used for transmitting common computing data to all computing nodes, efficient transmission of data packets in the network is achieved through combination of the unicast network and the multicast network, and efficient transmission of the data packets in the network is achieved through design of a multicast tree-shaped transmission architecture oriented to the distributed parallel computing algorithm. A bi-directional replication node or a receiving node is arranged at each operation node, and the architecture is different from the structure that each node in a traditional multicast network-on-chip is provided with a multicast sending module and a multicast receiving module, so that the use of on-chip resources is reduced to the maximum extent.