47 results about "Backup site" patented technology

A system for minimizing downtime in an appliance-based business continuance architecture is provided. The system includes at least one primary data storage and least one primary host machine. The system includes an intercept agent to intercept primary host machine data requests, and to collect information associated with the intercepted data requests. Moreover, at least one business continuance appliance in communication with the primary host machine and in communication with a remote backup site is provided. The appliance receives information associated with the intercepted data requests from the intercept agent. In addition, a local cache is included within the business continuance appliance. The local cache maintains copies of primary data storage according to the information received. Furthermore, the remote site is provided with the intercepted data requests via the business continuance appliance, wherein the remote site maintains a backup of the primary data storage.

A failure recovery framework to be used in cooperative data stream processing is provided that can be used in a large-scale stream data analysis environment. Failure recovery supports a plurality of independent distributed sites, each having its own local administration and goals. The distributed sites cooperate in an inter-site back-up mechanism to provide for system recovery from a variety of failures within the system. Failure recovery is both automatic and timely through cooperation among sites. Back-up sites associated with a given primary site are identified. These sites are used to identify failures within the primary site including failures of applications running on the nodes of the primary site. The failed applications are reinstated on one or more nodes within the back-up sites using job management instances local to the back-up sites in combination with previously stored state information and data values for the failed applications. In additions to inter-site mechanisms, each one of the plurality of sites employs an intra-site back-up mechanism to handle failure recoveries within the site.

Handling failure of a primary group at a first data center that is part of plurality of data centers providing triangular asynchronous replication, includes creating a data mirroring relationship between at least one storage volume at a second data center having a synchronous backup group that is part of the plurality of data centers and at least one storage volume at a third data center having an asynchronous backup group that is part of the plurality of data centers and resuming work at the second data center. Handling failure of a primary group at a first data center may also include synchronizing the at least one storage volume at the second data center with the at least one storage volume at the third data center prior to resuming work at the second data center.

A system for minimizing downtime in an appliance-based business continuance architecture is provided. The system includes at least one primary data storage and least one primary host machine. The system includes an intercept agent to intercept primary host machine data requests, and to collect information associated with the intercepted data requests. Moreover, at least one business continuance appliance in communication with the primary host machine and in communication with a remote backup site is provided. The appliance receives information associated with the intercepted data requests from the intercept agent. In addition, a local cache is included within the business continuance appliance. The local cache maintains copies of primary data storage according to the information received. Furthermore, the remote site is provided with the intercepted data requests via the business continuance appliance, wherein the remote site maintains a backup of the primary data storage.

An aspect of the present invention reduces the recovery time for business organizations in case of disasters. In one embodiment, a disaster recovery system containing a primary site and a backup site (implemented as a cluster) is maintained. Application instances are executed in both the primary site and the backup site, with the number of instances executed on the backup site being fewer than that executed on the primary site. During normal operation, user requests received are processed using only the instances executing in the primary site, while the instances executing in the backup site are used in a standby state. On identifying that a disaster has occurred, the user requests received immediately after identification of the disaster are processed using only the instances executing in the backup site. The cluster at the backup site is then scaled out to add application instances until a desired level/percentage is achieved.

Handling failure of a primary group at a first data center that is part of plurality of data centers providing triangular asynchronous replication includes creating a data mirroring relationship between at least one storage volume at a second data center having a synchronous backup group that is part of the plurality of data centers and at least one storage volume at a third data center having an asynchronous backup group that is part of the plurality of data centers and resuming work at the third data center. Handling failure of a primary group at a first data center may also include synchronizing the at least one storage volume at the second data center with the at least one storage volume at the third data center prior to resuming work at the third data center.

An embodiment of the invention provides a distributed data copying method and device. The method includes that a write request is received, the write request is separated into multiple write sub-requests, each write sub-request carries part of the data carried by the write request, the write address of each write sub-request points to one source sub-volume of a source volume of a production site, the source volume is divided into multiple source sub-volumes, and each source sub-volume is located at one storage node of the production site; data is written into each source sub-volume according to the write sub-requests, and the backup information of each source sub-volume is generated; each backup information is transmitted to a disaster recovery backup site, and the backup information of the source sub-volumes jointly forms the backup information of the source volume.

The embodiment of the invention discloses a production site, a disaster backup site, and a remote disaster recovery method based on a snapshot. The method comprises the following steps: the production site writes target data into the storage equipment of the production site; when the target data succeeds in being written, the production site carries out synchronous replication on the data which succeeds in being written into the storage equipment of the production site to generate disaster recovery data; the production site sets the disaster recovery data in a data message, and sends the data message to the disaster backup site in real time through a network; the production site obtains a command used for indicating to generate a data consistency point; and the production site responses to the command to set a snapshot label in a snapshot label message, and sends the snapshot label message to the disaster backup site in real time through the network. Through the above scheme, the method does not need to execute a snapshot printing operation on the premise that disaster recovery data backup is finished, so that performance losses brought by the snapshot can be avoided, and system performance in a disaster lifecycle is greatly improved.

The invention discloses a data remote disaster tolerance method and apparatus. The method comprises: when a source volume in a main site and a target volume in a backup site establish an asynchronous copy relationship, generating a first additional volume in the main site and generating a second additional volume in the backup site; synchronously recording data change information of the source volume by the first additional volume; after a preset window period is ended, transmitting the recorded data change information to the target volume of the backup site by the first additional volume; and synchronously recording the data change information by a second additional volume to finish the asynchronous copy of the main and backup sites. According to the data remote disaster tolerance method and apparatus provided by the invention, the additional volumes are introduced and the window period of a proper size is set, so that the data volume of asynchronous data transmission can be effectively reduced, the congestion degree of a transmission network can be reduced, and the efficiency and stability of a remote disaster backup technology are improved.

Aspects of the present invention provide a solution for implementing disaster recovery for an application. A subscription backup site for the application is selected from among a plurality of sites. The site that is selected will have a virtual space that is able to accommodate the workload requirements for the application. The application is deflated on the site in such as way as to operate in a dormant state. In the dormant state, the application has a small fraction of its required resources allocated to it. Thereafter, when disaster recovery is needed, the application can be inflated on the subscription backup site by allocating resources to enable the application to execute on the subscription backup site.

Systems, computer program products, and methods that can integrate resources at a disaster recovery site are provided. One method includes generating, on a primary site, a set of storage snapshots based on combining another set of storage snapshots and incremental changes to mirrored data on a backup site in which the storage snapshots include a second snapshot format utilized on the backup site. The method further includes converting the set of storage snapshots from the second snapshot format to a first snapshot format utilized on the primary site to generate a yet another set of storage snapshots and converting, on the backup site, a set of storage snapshots including the incremental changes and the second snapshot format to the first snapshot format to generate still another set of eighth storage snapshots. The storage snapshots on both sites represent the same data in the same snapshot format without bulk data transfer.

The embodiment of the invention discloses a separable query transaction data scheduling method and apparatus and relates to the technical field of routing control. The method includes the steps of copying transmitting separable query transaction data in a core site host to a backup site host; obtaining a first time stamp of the separable query transaction data in the core site host and a second time stamp of the separable query transaction data in the backup site host and determining the data copying delay time between the core site host and the backup site host; controlling the backup site host to stop displaying query transaction results and controlling the core site to display the query transaction results based on the separable query transaction data according to a preset strategy when the data copying delay time is greater than a preset time threshold value. The separable query transaction data scheduling method and apparatus can solve the problems of inaccurate judgment and slow processing of the manual separable query transaction data scheduling.

Increasing disaster resiliency in one aspect may comprise running an optimization algorithm that simultaneously solves for at least a first objective to increase a spread of a backup of virtual machines from a given site onto other sites in proportion to an amount of available space for backup at each site, a second objective to increase a number of backups at one or more of the other sites with low probability of system crash while reducing backups at one or more of the other sites with higher probability of system crash, and a third objective to minimize a violation of recovery time objectives of the virtual machines during recovery. One or more backup sites and one or more recovery sites in an event the given site crashes may be determined based on a solution of the optimization algorithm.

The invention relates to a disaster recovery backup vehicle-mounted emergency charging method for a routing inspection UAV (unmanned aerial vehicle) motorcade. The method comprises the steps that an intelligent charging circuit board controls a storage battery pack to charge a UAV lithium battery through a DC/DC charging module of the intelligent charging circuit board when a vehicle is moving, and the storage battery pack carries out the charging of 220 AC equipment carried by a disaster recovery backup emergency worker at the same time through a DC/AC module; the intelligent charging circuitboard controls a vehicle-mounted generator to charge the UAV lithium battery through the AC/DC module and the DC/DC charging module of the intelligent charging circuit board when the vehicle is parked on a disaster recovery backup site, and the vehicle-mounted generator charges the storage battery pack at the same time through the AC/DC module; the intelligent charging circuit board controls thestart of a fan when the internal temperature of a cabinet is detected to be greater than a threshold value or there is fire in the cabinet. The method effectively improves the utilization efficiency of the UAV battery, greatly improves the endurance of an UAV, greatly enlarges the routing inspection range of the UAV, and plays an important guarantee role in the UAV routing inspection after diasters.

In one embodiment, the present invention is a method and apparatus for testing backup sites in a Voice over Internet Protocol network. In one embodiment, a method for testing a backup site in a communications network includes simulating, in the network, a failed customer call and outputting an indicator to indicate whether the failed customer call was successfully re-routed from a primary site to the backup site. The testing of the backup site occurs in a manner that minimizes impact to the routing of customer calls destined for the primary site.