1699 results about "Data restoration" patented technology

The present invention provides computer systems, methods, and software products enabling the creation and maintenance of disaster recovery volumes having a reduced impact with regard to network traffic over a communications network. A disaster recovery volume is generally created at a local archival storage unit including therein at least one storage medium constituting the disaster recovery volume. The medium constituting the disaster recovery volume is associated with the primary volume thereby allowing the storage medium constituting the disaster recovery volume to be relocated to a remote archival storage unit at a remote location without compromising the association between the primary volume and the disaster recovery volume. Incremental changes to the primary volume may then be communicated and incorporated in to the disaster recovery relocated to the remote location.

An infrastructure for archiving data among a client, a broker, and a plurality of archives, wherein the client comprises: a backup agent configured to fragment and erasure encode the data to create a set of erasure encoded data fragments; a communications agent configured to communicate the erasure encoded data fragments to the broker, issue a challenge for a challenge/response protocol to the broker, and to request data from the archives; and a restore agent configured to combine the data fragments obtained from the broker upon a data restore request.

A method and apparatus for increasing the bandwidth of a memory controller system are provided. According to the invention, data received at an interface of a memory controller system is compressed in the memory controller by a compression engine for storage in associated memory. The address of the data written to memory is maintained in a memory controller. When data is read from the memory for provision to an interface of the memory controller, the memory manager retrieves the data from memory and provides it to a decompression engine. The decompression engine restores the data to its original, uncompressed form. The data is then provided to the appropriate interface.

Various techniques for improving the performance of restoring deduplicated data files from a server to a client within a storage management system are disclosed. In one embodiment, a chunk index is maintained on the client that tracks the chunks remaining on the client for each data file that is stored to and restored from the storage server. When a specific file is selected for restore from the storage server to the client, the client determines if any local copies of this specific file's chunks are stored in files already existing on the client data store. The file is then reconstructed from a combination of these local copies of the file chunks and chunks retrieved from the storage server. Therefore, only chunks that are not stored or are inaccessible to the client are retrieved from the server, reducing server-side processing requirements and the bandwidth required for data restore operations.

A system and method to automatically and dynamically optimize available resources to meet application data availability and business objectives. In one embodiment, a backup and data recovery system continually and dynamically adjust to the backup and recovery or restore process depending on the customer's environment, workload, and business objectives. Acceptable tolerance of downtime due to recovery and backup impacts the customer's business or system operation. From this high-level business requirement, the present system determines the backup and recovery plan details. The present system accepts application data availability policies based on business objectives, and devises, executes and refines a resource optimal backup and recovery strategy required to deliver the desired quality of service in the environments that have dynamically changing application workloads, business objectives, and hardware/software infrastructure technologies. In addition, the present system performs backups outside blocked windows to minimize the impact on the customer's system.

A system, method, and program product enables saving a submitted form of a web page. A browser application receives from a user data for a form in a web page. Upon the submission of the form with the data to a server system hosting the web page, an address of the web page, the data provided from the user for the form, and at least one field identifier for associating the data to at least one respective field of the form, are saved into a volatile memory of the client. The address, the data, and the at least one field identifier remain stored in the volatile memory system after the browser application is closed. When the user opens the browser that had been dosed and again requests retrieval of the web page, the browser retrieves from the server the web page that is at the address stored in the volatile memory. The browser restores the form of the web page with the data stored in the volatile memory. The browser calls a clipboard operation of an operating system on which the client system operates to save the address of the web page, the data for the form, and the one or more field identifiers, into the volatile memory. If the data for the form is successfully submitted to the server and the browser receives another request for a next web page from the user, the browser application erases, if required, the data from the volatile memory system.

A storage system maintains a journal and a snapshot of one or more data volumes. Two journal entry types are maintained, an AFTER journal entry and a BEFORE journal entry. Two modes of data recovery are provided: “fast” recovery and “undo-able” recovery. A combination of both recovery modes allows the user to quickly recover a targeted data state.

A system and method is provided for optimizing restoration of stored data. A request for data to be restored to any point in time is received. A current state of the data is determined. One or more data blocks required to modify the data from the current state to the any point in time requested are identified. The data at the any point in time is restored within a storage medium using the identified one or more data blocks.

System and method for performing restores from backups while applications are active and accessing the data being restored. A map correlating destination locations on primary storage to source locations on backup storage for files to be restored may be generated. A restore of the files from the backup storage to the primary storage may be started. During the restore, one or more blocks of data of a file needed by an application may be determined. The map may be accessed to determine if the blocks have been restored. If the blocks have not been restored, the blocks may be restored from the backup storage to the primary storage. The restored blocks of data are accessible by the application while the restore is in progress. The map may be updated to indicate blocks of data that have been restored to the primary storage.

In some embodiments, a computer accessible medium comprises a plurality of instructions which, when executed: cause a modification of an image of files created from a computer system having first hardware; and cause the image to be copied to a computer system having second hardware different from the first hardware. A difference between the first hardware and the second hardware necessitates that the modification of the image be performed. For example, the difference may indicate that a different device driver is to be included in the image, or that HAL or kernel code is to be changed. A similar method of modifying the image and copying the image is also contemplated.

A system and method for providing automatic data restoration after a storage device failure are disclosed. An agent module detects a failure at a logical unit located at a primary storage device. The agent module locates backup data from the failed logical unit that is stored on a backup storage device and transfers the backup data from the backup storage device to a spare logical unit located on the primary storage device. The agent module then maps the spare logical unit to an address associated with a host in response to detecting the failure at the logical unit.

The invention provides a drug storage information managing system for pharmacy, comprising a basic information managing module, an in-storage managing module, an out-storage managing module, an inventory managing module, a statistic information managing module and a system managing module, wherein the basic information managing module is used for maintaining and managing the staff information, maintaining and managing the information of pharmaceutical suppliers, and maintaining and managing the patient information; the in-storage managing module is used for managing in-storage operation, storage location, in-storage query and in-storage drug-return; the out-storage managing module is used for managing manual out-storage operation, out-storage query and out-storage drug-return; the inventory managing module is used for managing inventory query, inventory alarm and inventory transfer function; the statistic information managing module is used for managing the statistic of the staff information, the statistic of the information of suppliers, the statistic of the in-storage drug, the statistic and analysis of the in-storage drug, the statistic of the out-storage drug, and the statistic and analysis of the out-storage; and the system managing module is used for managing the system users, the user passwords, the data backup, the data restoration and the authority. After adopting the drug storage information managing system for the pharmacy, the pharmacy management is automated and normalized and becomes scientific, and the whole efficiency of the system is improved.

Embodiments of the present invention provide backup and restoration functions for a storage device of a PCI-Express (PCI-e) type that support a low-speed data processing speed for a host. Specifically, embodiments of this invention provide backup and restoration functions for one or more (i.e., a set of) semiconductor storage devices (SSDs). In general, the present invention provides an alarm unit and a secondary power supply coupled to a backup controller. The backup controller is coupled to a backup storage device. When a primary power supply is deactivated (e.g., fails), an alarm unit and the secondary power supply is activated. In response to this activation, the backup controller will backup any data stored on any SSDs of the storage system (as well as any data stored in main memory of the storage system or in main memory of any host server connected thereto). When the primary power supply is reactivated, the secondary power supply (and the alarm unit) is deactivated, and all data backed up is restored to its original source.

The present description discloses a technique for recovering data using a timeline-based computing environment. Data items of the application are periodically saved for recovery such that the saved data items can be used to recover the application at a point in time when the items are saved. As a result, a search through a time-based computing environment is provided to recover the application at different points in time. The application with the saved data items can then be recovered at a designated point in time. Each saved data item can also be indexed with metadata, which are used to conduct a search to generate a list of data items according to a match between the indexed metadata and a user selected variable. Moreover, when the application is a communication client having multiple messages, an index data to indicate whether a message in the communication client is spam is saved. Using this index data, a search that includes or excludes the spam messages can then be conducted. Thus, using a timeline-based computing environment, an improved method and system of recovering data that is more user friendly, effective, and manageable is thus provided.

The present invention provides a system and a method for utilizing a parity protection module to back up data on striped aggregates. Specifically, the system computes party data for data stored at a particular location of each of a plurality of constituent aggregates, and stores the parity on one of the constituent aggregates that is a parity owner for that particular location of data. In the event one of the constituent aggregates fails, new data may still be accessed by the system (the striped aggregates), both to write new data, and to read data stored on the failed aggregate. In particular, the parity protection module allows clients to read data from a failed aggregate by running a reverse parity computation, which may also be used to restore the data to the failed aggregate.

Deskewing method and apparatus, and a data reception apparatus using the deskewing method and apparatus, in which the deskewing apparatus includes an up/down detection unit, a lower limit detection unit, an upper limit detection unit, a phase detection unit, and a buffer unit. The up/down detection unit samples a received data signal in response to a data sampling clock signal, a first edge sampling clock signal, and a second edge sampling clock signal and determines in which of first through third areas of the data signal the logic level of the data signal transitions by using the result of the sampling, wherein the data sampling clock signal, the first edge sampling clock signal, and the second edge sampling clock signal are sequentially activated. The lower limit detection unit detects a lower limit of the first area if the logic level of the data signal transitions in the first area. The upper limit detection unit detects an upper limit of the third area if the logic level of the data signal transitions in the third area. The phase detection unit determines a delay amount indicating the amount by which the data signal is to be delayed according to the upper limit detected by the upper limit detection unit and the lower limit detected by the lower limit detection unit. The buffer unit delays the data signal by the delay amount determined by the phase detection unit. The deskewing apparatus can optimize data sampling by efficiently reducing data skew. In addition, the deskewing apparatus can minimize data restoration errors by reducing an accumulation of jitter.

Nearline disaster recovery (“nearline DR”) storage systems and methods that permit the use of previously restored stored data from a near time period by virtual applications operating off a backup storage location during the period of disaster recovery at a primary site. This is generally referred to as a “nearline DR storage process.”

A method and system for promoting a snapshot in a distributed striped volume system is provided. A master volume server is configured with a rollback process such that when it is determined that a rollback is required, the master volume server sets a flag persistently in its own raid label on disk. After the persistent flag is set, the master volume server determines a “common snapshot,” and starts the process of sending RPC messages to each node hosting constituent volumes instructing each constituent volume to roll back to the identified snapshot. When the nodes receive this message a flag is set in the own raid label of each constituent volume and the volume then promotes the particular snapshot. If the master volume server has not received a successful response from each node that the snapshot promotion was successful within a specified time period, there is a retry. The common snapshot is then used as the active file system, thus providing data recovery for the striped volume set.

A method, article of manufacture, and apparatus for restoring LUs from a backup is discussed. In an embodiment, a primary storage system may continue to process IOs while the LU is being restored.

This invention provides a distribution storage download system, a device and a method for network data, in which, said system includes: a source data terminal used in carrying out linear coding to source data to generate multiple data slices and carrying out linear de-coding to the data slices of the source data to resume the source data, a storage node connected with said source data terminal to download and store said data slices and an index server connected with the source data terminal and storage node for managing the information of the data slice and network information of the nodes to control the terminal or nodes to download data slices of the source data.