Abstract: Provided are a system and article of manufacture for performing scheduled backups of a backup node associated with a plurality of agent nodes. Backup data sets on at least one machine in a network are associated with a backup node and a plurality of agent nodes in the network are associated with the backup node. The agent nodes are associated with machines in the network capable of backing up the backup data sets associated with the backup node. A schedule indicating a scheduled backup to backup scheduled data sets associated with the backup node is processed. At least one of the agent nodes is contacted to request the at least one agent node to perform the scheduled backup and backup the scheduled data sets, wherein the at least one contacted agent node performs the scheduled backup to backup the scheduled backup sets.

Abstract: Provided are a system and article of manufacture for performing scheduled backups of a backup node associated with a plurality of agent nodes. Backup data sets on at least one machine in a network are associated with a backup node and a plurality of agent nodes in the network are associated with the backup node. The agent nodes are associated with machines in the network capable of backing up the backup data sets associated with the backup node. A schedule indicating a scheduled backup to backup scheduled data sets associated with the backup node is processed. At least one of the agent nodes is contacted to request the at least one agent node to perform the scheduled backup and backup the scheduled data sets, wherein the at least one contacted agent node performs the scheduled backup to backup the scheduled backup sets.

Abstract: A switched file system, also termed a file switch, is logically positioned between client computers and file servers in a computer network. The file switch distributes user files among multiple file servers using aggregated file, transaction and directory mechanisms. The file switch distributes and aggregates the client data files in accordance with a predetermined set of aggregation rules. Each rule can be modified independently of the other rules. Different aggregation rules can be used for different types of files, thereby adapting the characteristics of the switched file system to the intended use and to the expected or historical access patterns for different data files.

Abstract: Methods and apparatus, including computer program products, implementing and using techniques for recovering a database, distributed in two or more storage devices, based on a backup of each storage device. The backup of each storage device is acquired. In association with the backup for each storage device, a quiesce point indication is acquired. The quiesce point indication indicates backed up data of each storage device. The backed up data is based on a quiesce point. For each storage device, a recovery process is selected. For each storage device, in response to the selected recovery process being a collective copying process, recovering contents of each storage device is done by collective copying. In response to the selected recovery process being to recover based on the quiesce point indication, the contents of each storage device is recovered based on the indicated backed up data of the quiesce point indication.

Abstract: A method and system for reducing storage requirements and speeding up storage operations by reducing the storage of redundant data includes receiving a request that identifies one or more data objects to which to apply a storage operation. For each data object, the storage system determines if the data object contains data that matches another data object to which the storage operation was previously applied. If the data objects do not match, then the storage system performs the storage operation in a usual manner. However, if the data objects do match, then the storage system may avoid performing the storage operation.

Abstract: A system for performing storage operations using hierarchically configured storage operation cells. The system includes a first storage manager component and a first storage operation cell. The first storage operation cell has a second storage manager component directed to performing storage operations in the first storage operation cell. Moreover, the first storage manager component is programmed to instruct the second storage manager regarding performance of storage operations in the first storage operation cell.

Abstract: An apparatus and method is described for improving access to mostly read data on network servers. The preferred embodiments more efficiently utilize replicated data servers to minimize server response time for improved performance of data access to network servers by workload managing client requests across the primary server and all replicated servers when it is possible to do so. In preferred embodiments, a load balancer supplies the most current data for mostly read data transactions while maximizing server usage by workload managing client requests across the primary server and all replicated servers. Client requests are managed by a load balancer in the workload manager. Client requests are sent by the load balancer to replicated servers when a routing table (stale data marker list) indicates that the data is in a safe period. Clients are directed exclusively to the primary server only during data update times.

Abstract: Embodiments of the invention may be used to increase query processing parallelism of an in-memory database stored on a parallel computing system. A group of compute nodes each store a portion of data as part of the in-memory database. Further, a pool of compute nodes may be reserved to create copies of data from the compute nodes of the in-memory database as part of query processing. When a query is received for execution, the query may be evaluated to determine whether portions of in-memory should be duplicated to allow multiple elements of the query (e.g., multiple query predicates) to be evaluated in parallel.

Abstract: Distributed network-based data backup, recovery and deletion methods and a distributed network system thereof are provided. The methods include respectively establishing peer-to-peer connections between a host storage server and a plurality of peer storage servers, dividing original data into a plurality of data segments, generating a plurality of data segment copies corresponding to the data segments according to a minimum survival rate and the number of peer storage servers. The methods also include transmitting the data segment copies to the peer storage servers, wherein the number of data segment copies for each of the data segments is equal to a redundancy, and the redundancy is smaller than the number of the peer storage servers, and the data segment copies distributed to any one of the peer storage servers correspond to a portion of all the data segments. Accordingly, the methods can effectively and safely backup the original data.

Abstract: In a data storage system having a plurality of storage nodes storing replicas of stripes, one storage node serves as a primary stripe node for a stripe. Client applications using the data storage system request operations affecting metadata stored in the stripe, and the data storage system creates workflow objects to implement the requested operation. Once the operation is completed, the workflow is acknowledged. A method for establishing a new primary stripe node comprises performing, by a selected storage node, a feasibility determination to determine the feasibility of the selected storage node becoming the new primary stripe node. It is feasible to become a new primary stripe node when doing so does not cause workflows that have been acknowledged, or that will be acknowledged, to result in strays.

Abstract: Various embodiments of a method, system and computer program product backup and recover a database. A database is distributed in a plurality of storage devices. A target designation designating a target database is received. One or more storage devices of the plurality of storage devices, storing at least a portion of the target database, are selected. A quiesce point is established by completing an ongoing transaction for the target database and inhibiting a further transaction. In response to establishing the quiesce point, a backup is generated by collectively copying data on each storage device of the one or more selected storage devices. The backup associated with a quiesce point indication indicating backed up data of the said each storage device of the one or more selected storage devices in accordance with the quiesce point, are recorded.

Abstract: A request is received at a resource server for a first resource, the request accompanied by a proxy filter. A second resource is identified based on the proxy filter and based on a relationship between the first resource and the second resource. The first resource and information regarding the second resource is provided to a network interface for communication to a proxy server.

Abstract: Each of plural multimedia files desired to be backed up are transformed into vector representations and divided into segments, and the segments are sent to respective participating computers in a network as a means of backing up the files. The multimedia files can be recovered and may be reconstituted with less than 100% of the segments with minimal deleterious noticeability upon subsequent display of the content in the files.

Abstract: Various methods and systems for using email to convey backup and restore data are disclosed. One method involves: receiving a request to perform a backup system operation; generating an email that includes data and metadata (which is associated with the data); and sending the email to an email address associated with a backup system component. The request can be a backup request, in which case the data includes data to be backed up, and the backup system component is a backup server. Alternatively, the request can be receiving a restore request. In this scenario, the data includes data to be restored, and the backup system component is a backup client.

Abstract: Disclosed herein are systems and methods for managing the distribution and synchronization of data across multiple locations. The invention uses a static, rule-based mechanism that results in fast, successful data updates in a consistent and controlled manner and without the requirement for manual reconciliation. In one embodiment the data relates to financial transactions.

Abstract: A method and system for generating and restoring a backup image are disclosed. A server receives a request, which includes a backup path, to generate a backup image. The server generates a backup image offset map that indicates a relative location where a file is stored in the backup image before file data has been written to the backup image. The server stores the backup image offset map in a portion of the backup image on a storage device. The backup image offset map comprises an array having a number of elements equal to a number of inodes on a file system that hosts a backup path, an element of the array representing an inode on the file system, and indicates the relative location where a file that is associated with a number of the inode is stored in the backup image.

Abstract: Embodiments of the present invention are directed to Web-Services-based data backup and data-archiving applications that provide remote data backup and data archiving to private individuals, small businesses, and other organizations that need reliable, secure, geographically remote, and cost-effective data backup, data archiving, and backed-up and archived-data retrieval. In one embodiment of the present invention, a private or small-business client contracts with a service provider for data-backup and data-archiving services. The service provider, in turn, contracts with a remote data-storage facility to provide secure, reliable data backup and data archiving to the personal or small-business client. A client-side application is downloaded to the client computer and configured to allow the client to store locally encrypted data at the remote, data-storage facilities. Neither the service provider nor the data-storage facility can decrypt or otherwise access the information stored by the client.

Abstract: To protect data from corruption due to restoration of an encryption key to a wrong storage system, there is provided a computer system including a first storage system and a second storage system, wherein: the first storage system, upon receiving a request to write first data to a first area in the first storage system, encrypts the first data by using a first key and writes the first data in the first area, and, upon receiving a request to write second data to a third area, encrypts the second data by using a second key and transmits a request to write the encrypted second data in a second area in the second storage system; and the computer system holds the first key, an identifier of the first storage system associated with the first key, the second key, and an identifier of the second storage system associated with the second key.

Abstract: A method and system for reducing storage requirements and speeding up storage operations by reducing the storage of redundant data includes receiving a request that identifies one or more data objects to which to apply a storage operation. For each data object, the storage system determines if the data object contains data that matches another data object to which the storage operation was previously applied. If the data objects do not match, then the storage system performs the storage operation in a usual manner. However, if the data objects do match, then the storage system may avoid performing the storage operation.

Abstract: Provided are a method, system, and article of manufacture for backing-up and restoring files including files referenced with multiple file names. Files to backup are determined. A determination is made from the files to backup files referenced with multiple names. An entry is created for each file to backup in a backup directory indicating file attributes and each name used to reference the file. The determined files and the backup directory are backed-up.

Abstract: Various embodiments of a system and method for replicating a file over multiple data centers are described. The method may comprise creating a plurality of file records in a database at a data center that initially receives the file. Each record may correspond to a destination data center at which the file should be stored. The file records may be replicated to respective databases at each of the destination data centers, and each respective destination data center may pull a copy of the file to the respective destination data center. When a file is pulled to a given destination data center, the file record corresponding to the copy of the file at the given destination data center may be updated, and the updated file record may be communicated to the other destination data centers.

Abstract: The classification of data stored on a storage medium is dynamically modified without the data being relocated to another storage medium. Data stored on a plurality of storage mediums is classified independent of the physical location at which the data resides. Rather than moving data to storage media that possess different classifications, the data itself receives a classification apart from the storage medium. Data which is considered high priority would be afforded maximum use of the storage medium resources and bandwidth availability. Data that is of lower interest is classified with a lower classification resulting in differing levels of resources authorized to access that data. Throughout this reclassification process the data remains resident on the same storage medium.

Abstract: Replica placement in a network of nodes is provided. Nodes are selected for replica placement to satisfy location-based preferences. Additionally, nodes are selected for replica placement to spread replicas of the same data over different fault domains and upgrade domains. In some instances, nodes may be selected for replica placement based on load-based information for the nodes.

Abstract: A resource status value, which shows the resource status of a resource to be utilized in a remote copy that conforms to a copy mode configured for a copy unit created from a first data volume and a second data volume, is acquired either regularly or irregularly. A determination is made as to whether or not the acquired resource status value exceeds a prescribed threshold, and when it is determined that the acquired resource status value exceeds this prescribed threshold, either the resource to be used for a remote copy conforming to a configured copy mode is increased, or the configured copy mode is changed to a different copy mode.

Abstract: Automatically backing up one or more computers across a network to a backup device coupled to the network through one of the computers connected to the network. In one embodiment, a user connects the backup device to a first network connected computer which triggers the launch, installation, setup and configuration of the associated software on the first computer thereby performing a backup operation of data from the first computer to the backup device. The user then connects the backup device to a second network connected computer which triggers the launch, installation, setup and configuration of the associated software on the second computer thereby performing a backup operation of data from the second computer to the backup device. Furthermore, the associated software installed on the second computer triggers communication with and a backup of data from the first computer across the network through the second computer to the backup device.

Abstract: One or more techniques and/or systems are disclosed herein for backing up in-memory working store data. A first server in a plurality of connected servers detects a data change for a key-value pair the distributed in-memory working store. The first server determines a backup location for storing a copy of the key-value pair, which is comprised on a backup location server from the plurality of connected servers, by using a key from the key-value pair to identify the backup location server, and determine if the backup location server is available to store the backup copy. The first server sends the backup copy to the backup location server without prior permission from the backup location server and without subsequent feedback from the backup location server concerning the sending of the backup copy.

Abstract: Provided are a method, system, and article of manufacture for performing backup operations for a volume group of volumes. Information on a volume group associating a plurality of volumes and backup settings is maintained. A volume group is selected to which the backup settings apply. A volume group associates hosts and volumes, indicating the hosts that are enabled to access the volumes in the volume group. Automatic backup operations for the selected volume group are invoked to generate backup information for the volume group indicating backups performed with respect to the volumes associated with the volume group, process the backup information for the volume group to determine whether to perform a backup with respect to the volume group according to the backup settings, and backup each volume in the volume group in response to determining to perform the backup operation for the volume group.

Abstract: This invention provides a computing system in which multiple remote copy destination sites exist and, even if a failure occurs in a copy source volume in a remote copy source site, it becomes possible in at least one remote copy destination site to establish backup in which data must be determined at a certain point in time. The computing system of this invention is characterized by, before the in-storage copy function performing in storage copy in the remote copy source site, setting the pair status of the remote copy destination volume in at least one storage system in multiple remote copy destination storage systems and the remote copy source volume to the mode for terminating remote copy and, after the in-storage copy is completed, changing the above-mentioned pair status to the mode for starting remote copy.

Abstract: Disclosed herein is data replication and recovery method in an asymmetric clustered distributed file system, which divides the storage space of a data server into main partitions and sub-partitions, and separately manages main chunks and sub-chunks in the main partitions and the sub-partitions, thus efficiently processing chunk replication and recovery. In the disclosed method, when a failure occurs in a data server in an asymmetric clustered distributed file system, a failed partition is reported to all data servers including other partitions of a volume to which the partitions of the failed data server belong. Accordingly, other data servers can simultaneously perform the recovery of chunks using the information of their own main chunks and sub-chunks. As a result, when a failure occurs in a data server, all related data servers can simultaneously participate in data recovery, thus more promptly and efficiently coping with the failure.

Abstract: Various embodiments of a system and method for performing file backup operations are described. The method may operate to enable a user of a computer system to provide a password or other authentication information to associate with files on the computer system, e.g., in order to protect files that are backed up. For example, when the user (or another person or software agent) attempts to restore or otherwise access a backup copy of a password-protected file, the user may be prompted to enter the password. The method may operate to verify that the entered password matches the password associated with the file before granting permission to restore the file.

Abstract: Systems and methods are disclosed for providing a federated backup involving the coordination and synchronization of backup and restore operations among a plurality of hosts to ensure data consistency. A master node (backup host) acts as the initiator, coordinator, controller, and possibly as primary console for the entire backup and restore operation. All other worker application hosts and/or worker backup hosts operate as worker nodes and perform various backup and restore steps as directed by the master node. Centralized error handling aborts or recovers the entire backup operation in the event of failure on any one node. In addition, a logical view of the data is provided such that the backup can be managed as one entity, while backing up the data of each node. The backup workload may also be distributed to any other dedicated worker backup hosts (nodes) in order to minimize the impact to the production environment.

Abstract: A distributed storage network receives a data object and determines a size of the data object. The network then determines whether the data object should be segmented into fixed size segments or variable sizes segments based upon some variable-length algorithm. If the fixed approach is selected, the data object is segmented into two or more fixed size segments with attached header information and the information is further processed using error coding dispersal storage functions within the network. If the variable approach is selected, the data object is segmented into two or more variable-sized segments with attached header information and the information is further processed using error coding dispersal storage functions within the network. Both the variable and fixed approaches enable storage of error-correctable data slices in a distributed storage manner.

Abstract: Performing data backup for a client includes receiving, at a host other than the client, volume information including data indicating a physical data storage location of at least a part of a volume comprising one or more stored objects associated with the client; and determining at the host, based at least in part on the volume information, a stored object information for a stored object included in the volume, the stored object information including data associated with a physical data storage location of the stored object.

Abstract: A framework and method for use in determining appropriate information technology system disaster recovery and operational continuity solutions for an enterprise. In one embodiment the method includes identifying (504) business processes associated with achieving a defined mission of the enterprise. Assets of the information technology system are grouped (508) into one or more functional sub-system/data class groups and one or more of the business processes are selected. The functional sub-system/data class groups are mapped (524) to the selected business processes to establish a correspondence between each selected business process and one or more of the functional sub-system/data class groups. Thereafter, each functional sub-system/data class group corresponding with each selected business process is associated (602) with a solution class included in a three-dimensional disruption tolerance decision matrix.

Abstract: A distributed file system is disclosed which may include one or more input/output (I/O) nodes and one or more compute nodes. The I/O nodes and the compute nodes may be communicably coupled through an interconnect. Each compute node may include applications to perform specific functions and perform I/O functions through libraries and file system call handlers. The file system call handlers may be capable of providing application programming interfaces (APIs) to facilitate communication between the plurality of I/O nodes and the applications. The file system call handlers may use a message port system to communicate with other compute nodes.

Abstract: An automated physical database backup, refresh and cloning system and method automatically generates scripts or commands for implementing one or more tasks related to physical database backup and/or database and application refresh or cloning operations between a source environment and a target environment. The scripts or commands make use of parameters describing the source and target environments, at least some of which are gathered prior to initiating backup and cloning. The tasks are performed during one or more backup, refresh and cloning phases. In some embodiments, scripts are automatically regenerated and executed after a failure associated with the source or target environment.

Abstract: A system for onsite backup of internet-based data is provided. The system includes a central computer, a client computer, a communications link between the central computer and the Internet, and a communications link between the client computer and the Internet. The system also includes at least one database containing a plurality of data records accessible by the central computer, each data record containing a client identification number. Software executing on the central computer receives a data backup request, and software executing on the central computer transmits the data backup to the client computer.

Abstract: Techniques for cloud data backup are disclosed. Example methods may store backup data from a client computer on portions of data storage media associated with peer computers. In some example embodiments, a file may be encoded into segments using an error-tolerant encoding scheme, and the segments may be stored on peer computers. In some example embodiments, individual segments may be stored on more than one peer machine and/or an individual peer machine may not receive all of the segments associated with the file.

Abstract: A geographically distributed storage system for managing the distribution of data elements wherein requests for given data elements incur a geographic inertia. The geographically distributed storage system comprises geographically distributed sites, each comprises a site storage unit for locally storing a portion of a globally coherent distributed database that includes the data elements and a local access point for receiving requests relating to ones of the data elements. The and geographically distributed storage system comprises a data management module for forwarding at least one requested data element to the local access point at a first of the geographically distributed sites from which the request is received and storing the at least one requested data element at the first site, thereby to provide local accessibility to the data element for future requests from the first site while maintaining the globally coherency of the distributed database.

Abstract: An apparatus and method for processing a data backup service of a mobile terminal. The apparatus and method backs-up data files stored in a mobile terminal in a backup server over a wireless Internet. The backup server is capable of backing-up resource information of the mobile terminal. The apparatus and method comprise a) checking setup backup resources during a backup setup procedure, and attempting to establish a connection to the backup server; b) analyzing category information of data to be transmitted to the backup server after connecting to the backup server, determining the number of references if the data category is equal to data including iterative information, and determining a division interval on the basis of a file size and performing data synchronization if the data category is equal to data including binary data.

Abstract: A method for performing backup operations while avoiding data loss due to backup failure. A backup agent software receives a database server backup request and decomposes the backup request into a plurality of smaller backup requests. The plurality of smaller backup requests are then performed on the database to backup the specified database components to an archive. The backup agent software monitors success (or failure) of each of the plurality of backup requests and generates backup scripts for those backup requests that failed. These backup scripts may be subsequently executed to “re-run” the failed backups. The backup agent software is a modular program separate from the client application and the database server software.

Abstract: A secure data parser is provided that may be integrated into any suitable system for securely storing data in and communicating data with cloud computing resources. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or both may be employed for additional security.

Abstract: A method and system for reducing storage requirements and speeding up storage operations by reducing the storage of redundant data includes receiving a request that identifies one or more data objects to which to apply a storage operation. For each data object, the storage system determines if the data object contains data that matches another data object to which the storage operation was previously applied. If the data objects do not match, then the storage system performs the storage operation in a usual manner. However, if the data objects do match, then the storage system may avoid performing the storage operation.

Abstract: In one embodiment a network attached storage device comprises at least one storage media, a detection module to detect at least one computing device on a network, a configuration module to configure, in network attached storage device, backup settings, a coordination module to coordinate backup procedures, a network attached storage backup module to backup at least a portion of data from a computing device to the storage media, and a device backup module to backup only modified data from a computing device.

Abstract: A method and apparatus for synchronizing updates to a large set of global counters are described. In one embodiment, the method includes making updates to a global state in response to a file system making changes to data in memory. In parallel, updates are made to a copy of the global state in a temporary buffer in response to the file system flushing the data changes to a mass storage device. The temporary buffer thus includes a set of deltas representing the changes to be made to the global state in response to the changed data in memory being pushed to the mass storage device. The method further includes merging the deltas in the temporary buffer with the global state.

Abstract: Methods, systems, and computer-readable media are disclosed for partitioning contended synchronization objects. A particular method determines a contention-free value of a performance metric associated with a synchronization object of a data structure. A contended value of the performance metric is measured, and the synchronization object is partitioned when the contended value of the performance metric exceeds a multiple of the contention-free value of the performance metric.

Abstract: A plurality of differential data stores are stored in persistent storage media. In response to receiving a first request to store a particular data object, one of the differential data stores that are stored in the persistent storage media is selected, wherein selecting the one differential data store is according to a criterion relating to compression of data objects in the differential data stores. The selected differential data store is copied into temporary storage media, where the copying is not delayed after receiving the first request to await receipt of more requests. The particular data object is inserted into the copy of the selected differential data store in the temporary storage media, where the inserting is performed without having to retrieve more data from the selected differential store in the persistent storage media.

Abstract: A data storage array may be made up of several storage devices, each of which may contain array metadata that may allow portions of the storage array to be used. A system may have a file system manager that may receive and respond to file system commands and a storage device manager that may store data on the several storage devices. Array metadata defining where data is stored within the storage array is stored on each device within the array. A policy engine may identify data to be stored on the array and determine if the data contains array metadata or other types of data and may store the data on every device, devices having specific characteristics, two or more devices, or one device.

Abstract: A system and method for management for data replication in a data storage environment is disclosed. The system includes an architecture, software, and methodology for recovering from failure of software agents, which are operational in the data storage environment, by an ordered allocation of non-failed software agents to compensate for the failed agents.

Abstract: System and method for managing metadata. A computer system includes one or more hosts, each host having an associated backup agent. Each backup agent conveys data from its associated host to a storage pool and stores metadata associated with the data in a metabase. In response to detecting that a first metabase meets a first condition, the system identifies a backup agent that has stored metadata in the first metabase and redistributes at least a portion of the metadata to a second metabase. In one embodiment, the first condition comprises detecting the amount of metadata stored in the first metabase reaching a threshold value. In a further embodiment, the metadata comprises entries, each of which corresponds to a data file. Each entry includes a fingerprint that is derived from and identifies the corresponding data file. The fingerprints identifying the data files may be encrypted.