Abstract: A disclosed data recovery method, image processing apparatus, controller board, and data recovery program enable data stored encrypted in a storage unit within an information processing apparatus to be recovered when an internal encryption key of the apparatus becomes unavailable. A first encryption key is stored in a secure memory, a second encryption key is stored in a first storage unit, and data is stored in a second storage unit. The second encryption key is decrypted with the first encryption key. The second encryption key is backed up outside the information processing apparatus as a backup key, such as by printing it on a sheet with a plotter. When the first encryption key becomes unavailable, the backup key is restored back in the information processing apparatus. The data stored in the second storage unit is then decrypted with the restored backup key.

Abstract: A method for file lock recovery in a distributed computer system. The method includes executing a distributed computer system having a plurality of nodes comprising a cluster, and initiating a network file system server fail over from one node of the cluster to an adoptive node of the cluster. File lock services are then stopped at the adoptive node. File lock services are subsequently restarted at the adoptive node, wherein the restart causes the adoptive node to commence a grace period for other network file system clients to connect to the adoptive node and reclaim file locks. After restarting file lock services, a cluster file system is updated on the adoptive node with process identifiers, and file lock services are resumed at the adoptive node. The cluster file system can be simultaneously exposing the file lock services to other clients as well, like CIFS, etc.

Abstract: Hierarchical recovery of failed computing nodes to operative computing nodes within a cluster of computing nodes is managed by initiating a recovery leader at an operative node that retrieves management information from the operative nodes and applies the management information to recover filesets of a meta-fileset in a hierarchical filesystem. The use of hierarchical filesets throughout the cluster provides more rapid failover by distributing recovery load across computing nodes and supporting recovery of nodes in parallel.

Abstract: A method for file lock recovery in a distributed computer system. The method includes executing a distributed computer system having a plurality of nodes comprising a cluster, and initiating a network file system server migration from one node of the cluster to a different node of the cluster. A migration count is incremented, wherein the migration count is stored at each of the nodes comprising the cluster. File lock services are paused at each of the nodes comprising the cluster. The network file system server migration is completed at the different node of the cluster. The migration count is then decremented in response to the completion. File lock services are then resumed at each of the nodes comprising cluster.

Abstract: An archiving system is provided for archiving a user's media collection and refining recommendations made to the user by an e-commerce service, such as an e-commerce website, based on the archive of the user's media collection. In general, a central archiving system interacts with a user system to archive a user's media collection. Thereafter, while the user is interacting with the e-commerce service, a list of recommended media for the user is generated and provided to the archiving system. The archiving system refines the list based on the archive of the user's media collection. Optionally, the list of recommended media may be further refined based on a user profile and play history of the user. The refined list of recommended media is returned to the e-commerce service and presented to the user.

Abstract: Technologies are described herein for providing assisted asynchronous replication between a first storage server having a first current state and a second storage server having a second current state. An instruction to roll back a first storage server from the first current state to a previous state according to a previous snapshot is received. The first storage server is then rolled back from the first current state to the previous state according to the previous snapshot. A determination is made as to whether the previous snapshot is available on a second storage server. Assistance data is then retrieved. A last consistency point common to the first storage server and the second storage server based on the assistance data is identified, where the last consistency point is at or prior to the previous snapshot. The second storage server is rolled back from the second current state to the last consistency point.

Abstract: A history of locations of tenant data is maintained. The tenant data comprises data that is currently being used by the tenant and the corresponding backup data. When a tenant's data is changed from one location to another, a location and a time is stored within the history that may be accessed to determine a location of the tenant's data at a specified time. Different operations trigger a storing of a location/time within the history. Generally, an operation that changes a location of the tenant's data triggers the storing of the location within the history (e.g. upgrade of farm, move of tenant, adding a tenant, load balancing of the data, and the like). When tenant data is needed for an operation (e.g. restore), the history may be accessed to determine the location of the data.

Abstract: Migrating data within a storage area network is disclosed. A migration plan is created, the migration plan to move data stored in the storage area network, wherein each element of data is to be moved from a source location to a destination location according to a mapping therebetween. A virtual identifier is assigned to each mapping according to the migration plan. The migration plan is executed. Upon completion of the movement of an element of data, the virtual identifier for the mapping of that element of data is assigned to a resultant location to which that element of data is moved. Upon completion of the execution of the migration plan, the movement of the data is verified by comparing, for each element of data, the virtual identifier of the mapping and the virtual identifier of the resultant location.

Abstract: Multiple service label types may be used in a given network element to optimize scalability of the data plane, minimize overhead associated with service label management, and allow new services to be offered. Service label management may be done in a dynamic manner so that service labels may be selected for routes in a dynamic fashion as the network changes. VPNs handled by the network element may have different types of service labels, and different routes within a particular VPN may be allocated different service label types. Service label requests may be stored on the data plane to allow a service label request database to be restored from the data plane upon a control plane failure, so that new service labels are not required to be allocated after a control plane failure.

Abstract: A computing environment logbook logs events occurring within a computing environment. The events are displayed as a history of past events within the logbook of the computing environment. The logbook provides search functionality to search through the history of past events to find one or more selected past events, and further, enables an undo of the one or more selected past events.

Abstract: The setting up of a circular log implementation to be able to detect amnesia in a circular log, and to the determination of whether or not amnesia has occurred in such a circular log. Upon detecting a checkpoint trigger, information is preserved sufficient to detect whether or not the removed records ever existed in the circular log. If a request for information from a record were subsequently to be received by the circular log implementation, and if the record was not actually in the circular log, the preserved information could then be consulted to see if it indicates that the record had once existed in the circular log. If the information indicates that the record had once existed in the circular log, then amnesia has not occurred. If the information does not indicate that the record had once existed in the circular log, then amnesia has occurred. Accordingly, amnesia detection is made possible even in a complicated circular log implementation.

Abstract: A transaction processing system provides the capability to use one two-phase commit engine over multiple protocols and products, while being able to vary the log presumptions according to the requirements of each protocol and product. The transaction processing system comprises a coordinator operable to receive a commit or abort request from a transaction and to perform a two-phase commit protocol on behalf of the transaction and a recovery presumption mechanism operable to perform a recovery process on the transaction upon recovery of the transaction processing system from a failure.

Abstract: One aspect of the present invention provides a workflow model to effectively respond to outage events within an IT infrastructure. This workflow model enables a combination of manual and automated processing to effectively deploy a flexible, plannable, and testable recovery to outages and problems encountered within IT infrastructure settings. In one embodiment, a shared processing context is created to accompany the operations of the workflow, thereby collecting useful data in one location related to events and status information during the outage and the outage response. Within the workflow, analysis of the outage event is performed, an appropriate recovery plan is selected, the selected recovery plan is implemented, and recovery to the outage event is completed. Data collected within the processing context can be analyzed to obtain post mortem analysis and continuous service improvements.

Abstract: A distributed database system providing data and space management methodology. In a distributed database system having an allocation page for tracking allocation and deallocation of data pages including a deallocation bit for tracking data page deallocation, a method for determining when to clear the deallocation bit during recovery comprises: during runtime operation, generating log records recording allocation and deallocation of data pages, setting the deallocation bit during deallocation of a data page by a transaction, and clearing the deallocation bit after the transaction has committed; during recovery following a failure, identifying a particular log record corresponding to the deallocation bit set during deallocation of a given data page; determining whether the deallocation of the given data page recorded in the particular log record committed prior to the failure; and if the deallocation of the given data page committed prior to the failure, clearing the deallocation bit.

Abstract: Techniques for recovery of application level objects are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for restoration of one or more application level objects. The method may comprise obtaining application metadata of an application containing objects to be restored, storing one or more data files containing application data, utilizing the application metadata to provide a user interface for the restoration of one or more application objects, accepting input from a user via the user interface specifying one or more application objects to restore, and restoring the one or more specified application objects.

Abstract: A system and methods are provided for remotely recovering and purging data from a wireless device in a communications network. The system includes a wireless device capable of executing a data recovery/purge application program for receiving a message from a communications device in the network. The application program retrieves the data in the wireless device, purges the data from the wireless device, and sends a return message, including the data retrieved from the wireless device, to the communications device.

Abstract: Method and apparatus for capturing data from a backup image are described. In one example, the backup image is mounted on a volume in a host computer. The backup image includes files, a first portion of which include an operating system. A database in the backup image is mounted. The database stores configuration data for use by the operating system. The configuration data includes file paths referencing at least one of the files. The file paths are re-mapped based on the volume. The data is captured from the backup image using the database as mounted and the file paths as re-mapped.

Abstract: According to some embodiments, a column-oriented in-memory database structure may be established. The database structure may, for example, include a main store and a dictionary compressed delta store. Moreover, the delta store may comprise a value identifier vector and a delta dictionary associated with a column of the database. A transaction associated with the column may then be received and recorded within the delta store. According to some embodiments, entries associated with the transaction may be added to a value log of the value identifier vector and, independently, to a dictionary log of the delta dictionary.

Abstract: Software is provisioned by providing a repository that contains a software trove. A local changeset is generated that represents differences between a version of the software trove on the repository and a corresponding version of the software trove on a local system.

Abstract: Techniques used in an automatic failover configuration having a primary database system, a standby database system, and an observer for preventing divergence among the primary and standby database systems while increasing the availability of the primary database system. In the automatic failover configuration, the primary database system remains available even in the absence of both the standby and the observer as long as the standby and the observer become absent sequentially. The failover configuration further permits automatic failover only when the observer is present and the standby and the primary are synchronized and inhibits state changes during failover. The database systems and the observer have copies of failover configuration state and the techniques include techniques for propagating the most recent version of the state among the databases and the observer and techniques for using carefully-ordered writes to ensure that state changes are propagated in a fashion which prevents divergence.

Abstract: A file system boundary emulation system emulates a virtual boundary of a filesystem within an existing file system for data management at a fileset granularity, within the framework of a wide area filesystem federation. The system dynamically assigns a fileset ID to the file that belongs to that fileset. The system comprises a fileset defined by the virtual boundary of the file. The virtual boundary is less than and contained within the file system. The fileset identifies the file via the file ID and the fileset ID. The system maps the file ID to the fileset ID. The filesets are dynamically created and removed based on administrative instructions. Filesets are used for fine grained data management and namespace control in a filesystem federation.

Abstract: In one example, a system that is operable to back up and restore data may include a high efficiency storage application configured to back up a chunk of data of a client system to a content addressed storage system by generating a recipe that includes instructions for generating the chunk of data from a plurality of data pieces. The system may further include a backup server communicably connected to the high efficiency storage application and configured to, among other things, in response to receipt of a restore request, recover the chunk of data by retrieving the recipe and appended storage addresses in one index seek without separately looking up a storage address for any of the plurality of data pieces in an index.

Abstract: Systems and methods of recovering a shared information source can involve identifying a first user of a shared information source in response to detection of a data loss with respect to the shared information source. One or more additional users of the shared information source may be identified based on data associated with the first user. Additionally, the shared information source can be recovered based at least in part on data associated with the one or more additional users.

Abstract: Information can be extracted from unstructured documents using embodiments described herein. An entity recognition may be performed on an unstructured document and found entities may be annotated. Annotating includes inserting tags around the found entities to generate marked entities. A rule is applied to each of the marked entities in the unstructured document to generate a confidence value for every marked entity, wherein the rule comprises a plurality of prefixes for a target entity and a plurality of suffixes for the target entity. A marked entity with the highest confidence value is selected as an extraction target.

Abstract: In one embodiment, a service mediator provides a service that is a composite of atomic services and executes a recovery pattern in the event that a service is not available. More particularly, in an initial phase of operation, the service mediator determines one or more recovery patterns for each atomic service offered in the composite service and stores in a database an identity of each such recovery pattern for each atomic service. In subsequent operation, the service mediator monitors the availability of each atomic service. When a user inquires of a composite service, the service mediator determines if any of its atomic services is unavailable. If an atomic service is unavailable, the service mediator selects a recovery pattern and executes it.

Abstract: A method and apparatus for recovering a volume to a first recovery point using bitmap information is described. In one embodiment, the method comprises processing bitmap information associated with at least one recovery point, wherein the bitmap information comprises at least one bitmap that represents at least one changed block since a first recovery point of the at least one recovery point, wherein the first recovery point is associated with a backup image and restoring the at least one changed block from the backup image to a volume.

Abstract: An apparatus for providing address book restoration includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to receive an instruction to restore a record associated with a contact previously deleted from each of at least two synchronized address books, and recover the record from a deleted file repository at which the record was stored prior to deletion of the record, the deleted file repository being a memory location different than the address books. A corresponding method and computer program product are also provided.

Abstract: A method to for safely restoring files in a computing system may include: 1) identifying a backup copy of a file, 2) creating a virtualization layer on a storage device in the computing system, and 3) restoring the backup copy of the file to a virtualized location within the virtualization layer. The method may also include determining whether redirecting a call, initially directed to an original location of the file, to the virtualized location would adversely affect the computing system. The method may further include performing, based on the results of the determination, a file-system operation. Various other methods, systems, and computer-readable-storage media are also disclosed.

Abstract: A data backup system includes an administration device built in an image forming apparatus for administering a state of usage of the image forming apparatus every administrative unit of a previously registered user and/or organization, and a backup device for acquiring registration data of the administrative unit and the data of the activities as backup data.

Abstract: In one embodiment, a service mediator provides a service that is a composite of atomic services and executes a recovery pattern in the event that a service is not available. More particularly, in an initial phase of operation, the service mediator determines one or more recovery patterns for each atomic service offered in the composite service and stores in a database an identity of each such recovery pattern for each atomic service. In subsequent operation, the service mediator monitors the availability of each atomic service. When a user inquires of a composite service, the service mediator determines if any of its atomic services is unavailable. If an atomic service is unavailable, the service mediator selects a recovery pattern and executes it.

Abstract: Systems and methods are provided for scanning files and directories in a distributed file system on a network of nodes. The nodes include metadata with attribute information corresponding to files and directories distributed on the nodes. In one embodiment, the files and directories are scanned by commanding the nodes to search their respective metadata for a selected attribute. At least two of the nodes are capable of searching their respective metadata in parallel. In one embodiment, the distributed file system commands the nodes to search for metadata data structures having location information corresponding to a failed device on the network. The metadata data structures identified in the search may then be used to reconstruct lost data that was stored on the failed device.

Abstract: For hierarchical data including tuples each including a combination of different data types and lists each listing data of a same data type, corresponding attribute-based data divided by attribute is stored in attribute-based files whereas information on the structure of the hierarchical data is held as schema information. The schema information includes data type information on the hierarchical data structure, including data type information on each element of each tuple and data type information on only a top element of each list. The attribute-based files storing the attribute-based data are managed to be in order by a file name management table. Data on each attribute is stored in a file in a state of being hierarchized in a list format corresponding to the depth at which the each attribute is listed in the schema information.

Abstract: Provided are a system and article of manufacture for mirroring data. A mirror policy indicating volumes in a first storage system is processed to mirror to volumes in a second storage system and volumes in the second storage system to mirror to volumes in a third storage system. The third storage system is at a first geographical location remote with respect to a second geographical location including the first and second storage systems. A command is transmitted to cause the copying of updates to the volumes in the first storage system to corresponding volumes in the second storage system indicated in the mirror policy. Upon an occurrence of an event, the causing the suspension of the copying of updates to the volumes in the first storage system indicated in the mirroring policy to the volumes in the second storage system.

Abstract: Provided are a computer program product, system, and method for restoring a restore set of files from backup objects stored in sequential backup devices. Backup objects are stored in at least one sequential backup device. A client initiates a restore request to restore a restore set of data in a volume as of a restore point-in-time. A determination is made of backup objects stored in at least one sequential backup device including the restore set of data for the restore point-in-time, wherein the determined backup objects are determined from a set of backup objects including a full volume backup and delta backups providing data in the volume at different points-in-time, and wherein extents in different backup objects providing data for blocks in the volume at different points-in-time are not stored contiguously in the sequential backup device. A determination is made of extents stored in the at least one sequential backup device for the determined backup objects.

Abstract: There is provided an information processing apparatus including a blocking unit that acquires holding block information, which is information about blocks to be held by a local apparatus, about a data file divided into a plurality of blocks among other information processing apparatuses excluding the local apparatus for divided management and held by the local apparatus and divides the data file to be held by the local apparatus based on the holding block information; and a storage unit that records the blocks of the data file identified by the holding block information with the blocks associated with data file identification information, which is information to identify the data file.

Abstract: A storage system according to certain embodiments includes a client-side repository (CSR). The CSR may communicate with a client at a higher data transfer rate than the rate used for communication between the client and secondary storage. During copy operations, for instance, some or all of the data being backed up or otherwise copied to secondary storage is stored in the CSR. During restore operations, copies of the data stored in the CSR is accessed from the CSR instead of from secondary storage, improving performance. Remaining data blocks not stored in the CSR can be restored from secondary storage.

Abstract: Assuring recovery from failure of a storage server in a distributed column chunk data store of operably coupled storage servers, includes: partitioning a data table into chunks; implementing a distribution scheme with a specified level of redundancy for recovery of one or more failed servers among multiple storage servers; distributing the column chunks according to the distribution scheme; calculating column chunk parity; storing the calculated column chunk parity; managing metadata for the column chunk data store; and updating the metadata for distributing the column chunks among remaining storage servers upon receiving an indication to remove a storage serve.

Abstract: A method for producing a summary A of data points in an unaggregated data stream wherein the data points are in the form of weighted keys (a, w) where a is a key and w is a weight, and the summary is a sample of k keys a with adjusted weights wa. A first reservoir L includes keys having adjusted weights which are additions of weights of individual data points of included keys and a second reservoir T includes keys having adjusted weights which are each equal to a threshold value ? whose value is adjusted based upon tests of new data points arriving in the data stream. The summary combines the keys and adjusted weights of the first reservoir L with the keys and adjusted weights of the second reservoir T to form the sample representing the data stream upon which further analysis may be performed.

Abstract: A storage control apparatus cooperable with a plurality of controlled storage apparatus arranged in a cascade of point-in-time copy relationship. The apparatus includes: a rate control component operable to set a desired rate for making clean a first target one of the plurality of controlled storage apparatus; a comparator component responsive to a signal from the rate control component to request and receive metadata from the plurality of controlled storage apparatus and to identify discrepant metadata; and a copy initiator, responsive to the comparator component to identify discrepant metadata and to initiate a copy operation from a first target one of the plurality of controlled storage apparatus to a second target one of the controlled storage apparatus.

Abstract: Methods, systems and program storage devices for managing schema changes made by a user to an object in a database. The method including: (a) intercepting a database command entered by said user; (b) if said database command is a schema change command referencing said object in said database and a registry criterion is met, then inserting said database command or a command derived therefrom into a registered storage, otherwise releasing said database command to said database for execution thereby; (c) releasing said database command or a command derived therefrom from said registered storage to said database for execution thereby when a release criterion is met thus giving rise to a released command; and (d) inserting said released command or a command derived therefrom into a history storage.

Abstract: A computer-based system includes a backup server, a production server, a recovery agent that executes on the production server, a database on the production server, a backup database on the backup server, and a meta data file on the backup server. The meta data file includes file names, a file directory, and file attributes. The system is configured to copy the metadata file from the backup server to a production server. When the copying of the metadata file from the backup server to the production server is complete, and before or during a time period in which backup data is copied from the backup server to the production server, the system is configured to receive a request from the production server to restore a file from the backup server with a higher priority than other files on the backup server.

Abstract: A computer implemented method for providing enhanced customer support is provided. The method comprises a replication server selecting a plurality of first entries in a source lightweight directory access protocol (LDAP) data store based on at least one attribute of the selected entries matching a predefined criteria, wherein a structure of the first entries is defined by a first schema. The method also comprises the replication server copying a plurality of attributes of each of the selected entries into a target lightweight directory access protocol data store, wherein the target lightweight directory access protocol data store contains a plurality of second entries, wherein a structure of the second entries is defined by a second schema, wherein the first schema is different from the second schema, and wherein the plurality of attributes copied do not include all of the attributes defined by the first schema.

Abstract: Described are techniques for processing recovery points. One or more storage objects for which data protection processing is performed are determined. The data protection processing includes copying data for each of said one or more storage objects to one or more data protection storage devices. One or more recovery points corresponding to each of said one or more storage objects are determined. For each of the one or more recovery points corresponding to each of the one or more storage objects, performing processing including determining whether said each recovery point is at least one of recoverable in accordance with recoverable criteria and restartable in accordance with restartable criteria.

Abstract: Disclosed are an apparatus, a system, and a method for recovering meta data using fragmentary information. The system for recovering meta data includes: a data server storing recovery information for recovering at least one data file and meta data related to each of the data file; and a meta data server storing the meta data related to the data files and receiving the recovery information from the data server when the meta data are lost to recover the lost meta data. By this configuration, the exemplary embodiment of the present invention stably can the lost meta data of the meta data server by using the recovery the meta data and prevent the phenomenon that the meta data collides with each other on the same directory hierarchical structure.

Abstract: An information processing device including: a storage device in which a plurality of files are stored in a file group in which a plurality of files are associated with one another and in a file group format in which the association is regulated, and which is able to delete a stored file; and a control unit that is able to restore a file that is deleted from files that are stored in the storage device, wherein in a case when a file that is stored in the storage device is deleted, the control unit restores a deleted file and restores the restored file to a file structure according to a file group format by arranging a file that matches a file group format in a structure of a file group format based on a restored file.

Abstract: Provided are a method, system, and article of manufacture for managing metadata for data blocks used in a deduplication system. File metadata is maintained for files having data blocks in a computer readable device. Data block metadata is maintained for each data block in the computer readable device. The data block metadata for one data block includes a data block reference and content identifier identifying content of the data block. The file metadata for each file includes the data block reference to each data block in the file. A determination is made of an unreferenced data block in the computer readable device that has become unreferenced. Indication is made that the data block metadata for the determined unreferenced data block as unreferenced metadata. The data block reference of the unreferenced metadata is maintained in the computer readable device in response to determining that a includes the data block indicated in the unreferenced metadata.

Abstract: Disclosed are methods usable by non-experts for altering a configuration of a data warehouse. The initial configuration of the data warehouse is represented in terms of metadata, and that metadata configuration is presented to a user. The user can choose to alter the metadata configuration. If alterations are made to the metadata, then the underlying configuration of the data warehouse is altered accordingly. Because there may be multiple users wishing to alter aspects of the data warehouse, some embodiments of the present invention enforce approval guidelines so that proposed changes to the data warehouse configuration are only implemented after the appropriate approvals have been secured. By presenting a metadata representation of the data warehouse configuration, the present invention both allows non-experts to have a hand in converting a data warehouse and prevents user errors from corrupting the data warehouse conversion process.

Abstract: A computer-implemented system configured to describe the relationship between a first Namespace and a second Namespace is provided. The system includes a containment relationship identifying a direct relationship between a first object of the first Namespace and a second object of the first Namespace. Moreover, the system includes a junction relationship linking the second object of the first Namespace to a first object of the second Namespace. In one embodiment, the system is configured to facilitate the recovery of information based on the descriptions of the Namespaces that is maintained.

Abstract: The data up to a point of time whereat failure has occurred will be restored at high speed at a remote site without imposing any burden on a host. The first storage system on the master side processes an I/O request from the host, and as a result of I/O processing to the second storage system on the remote side, transmits the update data. The second storage system retains data received from the first storage system as update log data. The host transmits a command for settling a state of an application to the first storage system as data, and the first storage system transmits the data to the second storage system. The host and the second storage system both retain an identifier corresponding to the command, and relate the identifier to the log data. Thereby, the host designates the identifier at any given time, whereby the second storage system restores the data at any given time.

Abstract: A computer readable medium storing a program that causes a computer to execute information processing is provided, wherein plural pieces of management object information are stored in a storage device with unique identification information and non-unique name information, the information processing including: receiving a process request that specifies management object information of a process object by using location information which is represented by a sequence of name information assigned to respective pieces of management object information; selecting one piece of management object information corresponding to the location information with reference to history information which is registered with the location information and the management object information being associated with each other; and sending back a result of a process that is executed for the selected management object information of the process object in accordance with the process request.