Abstract: Federated restore of availability group database replicas is described. A system receives a restore request associated with an availability group, and identifies a primary node in a cluster of nodes, the primary node storing a primary database replica associated with the availability group. The system identifies a secondary node in the cluster of nodes, the secondary node storing a secondary database replica associated with the availability group. The system removes the primary database replica and the secondary database replica from the availability group. The system simultaneously restores a backup database replica, associated with the availability group, as the primary database replica in the primary node and the secondary database replica in the secondary node. The system adds the restored primary database replica and the restored secondary database replica to the availability group.

Abstract: Methods and systems are disclosed for reducing bandwidth and storage demands during document search and aggregation. A method for accomplishing these objects may comprise deduplicating files on a local content repository, deNISTing files on the local content repository; and sending the deduplicated and deNISTed files to a cloud facility for storage. Documents stored in the cloud facility may be deduplicated again, assigned one or more flags, and managed according to active matters.

Abstract: A storage gateway for managing data includes a persistent storage and a processor. The processor obtains a data storage request for data from a client, makes a prediction of a quality of storage service for storing the data in each storage of multiple storages, selects a storage of the multiple storages based on the prediction, and stores the data in the selected storage of the multiple storages.

Abstract: In one example, a method for a distributed model of data ingestion includes receiving multiple asynchronous backup requests from a plurality of clients, and performing primary processing with respect to data elements of a first one of the backup requests. Next, a job concerning a secondary process is added to a job queue. A handoff is then made for performance of the secondary processing with respect to data elements of the first backup request. The job is then accessed and the secondary processing is performed with respect to the data elements of the backup request, wherein the primary processing and secondary processing are respective first and second stages of an ingestion process, and the primary processing is performed prior to the secondary processing.

Abstract: A memory system may include a memory device configured to store data received from a host; and a memory controller configured to, receive a received block of the data and a logical address associated with the data from the host, detect at least one halves of the received block as being duplicate halves based on whether a respective one of the at least one halves of the received block match one or more existing halves of stored blocks stored in the memory device, selectively store the at least one halves of the received block in the memory device based on whether the respective one of the at least one halves are duplicate halves such that the duplicate halves of the received block are not stored in the memory device, and store metadata associated with retrieving the received block.

Abstract: Backing up files storing virtual machines is described. A system identifies a file storing multiple virtual machines. The system creates a backup of the file. The system identifies a failure of the file. The system restores the multiple virtual machines based on the backup of the file.

Abstract: In one aspect, a method includes determining a number of data streams to assign to a volume, assigning a fragment file for each data stream, sending fragment files to a backup storage device, synthesizing the fragment files to form an image file for the volume at the backup device, sending new fragment files with changes to the volume to the backup device and synthesizing the new fragment files with the corresponding image file to form a new image file for the volume.

Abstract: A method for backing up application transaction data through a virtual backup proxy node is disclosed. The operations comprise: mounting an application transaction data disk image at the virtual backup proxy node with a Small Computer System Interface (SCSI) HotAdd method, the application transaction data disk image comprising application transaction data generated by an application running on a virtual machine, wherein the virtual machine is connected to a second network; and copying, by the virtual backup proxy node, the transaction data disk image to a storage device for backup protection through a first network to which the virtual backup proxy node and the storage device are connected, wherein no routable network path exists between the first network and the second network, or between the virtual machine and the storage device.

Abstract: A database may provide a visualization of restoration operation granularity. Information may be obtained describing possible restoration points within a given period of time for a database. The information may include a respective state of the database associated with a point in time and a respective restoration operation type for the possible restoration points. A graphical representation may be generated illustrating the possible restoration points ordered within the given time period according to the points in time associated with the respective states of the database. The graphical representation may be provided via network-based interface to a client of the database. The graphical representation of the possible restoration points may be updated in response to changes to the given time period or database volume events that modify the possible restoration points.

Abstract: An operation control method includes: storing data used by an application according to a first definition with respect to an interface of data operation when defining a way of starting a container, the container representing a region in which an execution environment of the application is disposed; storing an image file for the execution environment of the application; and registering a second definition into definition information, the second definition indicating the way of starting the container and being obtained by adding data information to information regarding the image file for the execution environment of the application in accordance with a third definition with respect to an interface of container operation, the data information being information regarding data used by the application in the container.

Abstract: A primary copy and one or more shadow copies of a logical volume are created and discovered by a host rescan performed when the logical volume is initially created. Data storage resources are allocated to the primary copy, but not to the shadow copy. The initial path state of the logical volume describes the path to the primary copy as active, and the path to the shadow copy as unavailable for accessing the logical volume. Movement of the logical volume to the storage appliance providing the shadow copy can be performed without an additional host rescan, by making the shadow copy the new primary copy, making the primary copy a new shadow copy, and updating the path state of the logical volume to indicate i) that the path to the new primary copy is active, and ii) that the path to the new shadow copy is unavailable.

Abstract: A differentially private system receives a request from a client to perform a query on data stored in a database. The differentially private system establishes a set of permissions of the client with respect to the data in the database. The differentially private system deconstructs the query into query components. The query components include at least one relation that identifies a dataset in the database and at least one expressions specifying an operation to be performed in the identified dataset. The differentially private system identifies permissions necessary to perform the specified operation on the identified dataset. The differentially private system determines whether the established permissions grants of the client include the identified permissions necessary to perform the specified operation on the identified dataset. The differentially private system selectively executes the query responsive to the determination.

Abstract: Techniques for designing and previewing web pages include creating a component edit panel for a user interface of a web page designer application, creating a custom attribute editor; and creating a custom editor sandbox to isolate the custom attribute editor from other parts of the web page designer application. Further techniques include setting up a message channel to the custom attribute editor through the custom editor sandbox, and adding the custom editor sandbox to the component edit panel.

Abstract: Disclosed is a method, system and computer program product for forming a consistency group to define a dataset of point-in-time data to be copied from a source volume to a target volume; setting copy priorities for respective data in the dataset; and transmitting the respective data in the order of the copy priorities from the source volume to the target volume, wherein the copy priorities are dynamically adjusted in response to arrival of write data during transmission of the data.

Abstract: The systems and methods provide for migrating such applications to cloud storage by automating a continuous replication of changes made to the DBMS from the DBMS to an associated cloud instance. For example, the systems and methods facilitate the migration of the DBMS via multiple processes performing in parallel—a process to create and provision a new machine instance (e.g., an EC2 instance), a process to clone and transfer parameters of the operating system/software of the DBMS, and a process that backs up and/or captures the application data of the DBMS.

Abstract: A system for improving backup performance includes an interface, a processor, and a memory. The interface is to receive a volume identifier to backup. The processor is to determine allocation for data of a volume associated with the volume identifier in a plurality of storage tiers to improve backup processing, move data based at least in part on the allocation, and backup data of the volume. The memory is coupled to the processor and configured to provide the processor with instructions.

Abstract: A first list is received including locations of blocks of a file system that changed between current and previous backups. A superblock of the file system is read to generate a second list including locations of metadata records representing file objects. The first and second lists are intersected to return a third list including locations listed in the first and second lists. The locations in the third list are changed metadata records. A metadata record as of the current backup and identified in the third list is read. A previous version of the metadata record as of the previous backup is read. The current and previous metadata record versions are compared to detect potential conditions occurring between the backups. Upon detection of a first type of condition, information about the condition is recorded. Upon detection of a second type of condition, information about the condition is not recorded.

Abstract: A method and system for performing incremental backup of a network attached storage (NAS) device are described. A storage capture instance associated with a first time instance is received from a network attached storage device. At least a portion of metadata of tracked network packets associated with the network attached storage device is also received. At least one changed content item of the network attached storage device that has changed since the first time instance is identified by analyzing the at least the portion of the metadata of the tracked network packets received. An incremental backup of the network attached storage device is performed at a second time instance based at least in part on the at least one changed content item identified.

Abstract: A production host for hosting virtual machines includes a persistent storage and a production agent. The persistent storage stores virtual machine data of the virtual machines. The production agent obtains a dynamic backup generation rule for the virtual machines; for a predetermined period of time after obtaining the dynamic backup generate rule: generates first backups of the virtual machines based on the dynamic backup generate rule; and identifies a change rate of the virtual machine data; after the predetermined period of time, obtain a prediction-based backup generation rule that is based on the change rate of the virtual machine data over the predetermined period of time; and generates second backups of the virtual machines based on the prediction-based backup generation rule.

Abstract: Embodiments are directed to a load balancer process for use in a deduplication backup process implemented in a cluster system that provides ideal placement of the Mtrees on the expanded capacity by monitoring the available capacity and providing recommendations on the best node to place newly created Mtrees. Continuous monitoring of the capacity and activity level of the nodes helps identify the appropriate node to place a new Mtree. The monitoring of existing node in the cluster and balancing capacity by recommending migration of files from heavily-utilized nodes to under-utilized nodes produces an overall increase in cluster performance.

Abstract: Backing up availability group databases configured on multi-node virtual servers is described. A system identifies an availability group scheduled for backup. The system determines whether the availability group is configured on at least one virtual server in a cluster of nodes associated with the availability group. If the availability group is configured on at least one virtual server in the cluster of nodes, the system retrieves information from a server in the cluster of nodes. The system uses the retrieved information to identify a database replica that is preferred for backing up the availability group. The system identifies a virtual server, in the cluster of nodes, that is associated with the identified database replica. The system identifies a node for backing up the availability group by identifying an active node from the nodes in the identified virtual server. The system backs up the availability group via the identified node.

Abstract: Techniques for assessing and managing versions of a configuration file associated with a modular control system of a process plant are described. According to certain aspects, systems and methods device may access data associated with multiple versions of a configuration file, including a computing device version and a control version, as well as a last backup instance of the configuration file. The systems and methods may compare the versions and determine any discrepancies between the versions, including which of the versions is the most recent. The systems and methods may present information associated with the comparison to enable a user to select which of the versions may be need to be updated, resolved, or provided to the controller so that the modular control system may be properly configured.

Abstract: The embodiments described herein relate to synchronization of data in a shared pool of configurable computer resources. One or more consistency points are created in a source filesystem. A first consistency point is compared with a second consistency point to detect a directory change at the source filesystem, which includes identifying at least one difference between the first and second consistency points. A file level change associated with an established directory at a target filesystem is identified responsive to the detection of the directory change. A link is established between the source filesystem and the target filesystem, and the established directory is updated based on the file level change.

Abstract: A storage controller receives a command to delete a dataset stored in a first set of storage volumes controlled by the storage controller. In response to receiving the command, a determination is made as to whether an indicator has been enabled to protect the dataset against an accidental deletion. In response to determining that the indicator has been enabled, the dataset is copied from the first set of storage volumes to a second set of storage volumes controlled by the storage controller. In response to completion of the copying of the dataset from the first set of storage volumes to the second set of storage volumes, the command to delete the dataset stored in the first set of storage volumes is executed.

Abstract: A computer-implemented method of information lifecycle management is disclosed. The computer-implemented method includes reading, by a data processing system of a storage environment, business rules and policies for managing data in storage volumes of the storage environment, the policies being based on the predetermined business rules, and analyzing, by the data processing system, available storage and capacity in the storage environment. The computer-implemented method further includes dynamically prioritizing, by the data processing system, the policies based, at least in part, on results of the analyzing, resulting in prioritized policies, cognitively translating, by the data processing system, one or more of the predetermined business rules into action(s) against one or more of the storage volumes based, at least in part, on the prioritized policies, and executing, by the data processing system, the action(s).

Abstract: Techniques for decoupling the commit and replay of file system metadata updates in a clustered file system (CFS) are provided. In one embodiment, a CFS layer of a computer system can receive a file I/O operation from a client application, where the file I/O operation involves an update to a file system metadata resource maintained on persistent storage. In response, a journaling component of the CFS layer can execute a commit phase for committing the update to a journal on the persistent storage. The CFS layer can then return an acknowledgment to the client application indicating that the file I/O operation is complete, where the acknowledgement is returned prior to completion of a replay phase configured to propagate the update from the journal to one or more locations on the persistent storage where the file system metadata resource is actually stored.

Abstract: An approach for index B-tree page creation associated with linear sequential insertions in database management systems (DBMS). A linear pre-splitter receives a current index leaf page for linear sequential insertion. The linear pre-splitter asynchronously creates index leaf pages where the current index leaf page is in a predetermined position at least one page away from a last index leaf page. The linear pre-splitter updates index leaf page position identifiers associated with the index leaf pages where the index leaf page position identifiers link the index leaf pages and the last index leaf page and the linear pre-splitter inserts index leaf page identifiers and index key metadata associated with each of the index leaf pages into index non-leaf pages.

Abstract: A consumer transmits a set of system updates corresponding to an initial set of events retrieved from an event stream. The consumer determines that acknowledgement of the transmission of the initial set of events has not been received. The consumer executes another retrieval operation to retrieve events from the event stream which results in retrieving an updated set of events. The updated set of events includes the initial set of events and one or more additional events. The consumer trims the updated set of events to remove the one or more additional events and obtains the initial set of events. The consumer re-determines and re-transmits the system updates corresponding to the initial set of events that were obtained by trimming the updated set of events.

Abstract: Techniques are provided for enhancing a user's browsing experience, especially when the user is browsing third party websites via an application. For example, a user may use the application to browse web pages served from a third party website that is associated with a particular domain. While browsing the third party web pages, the user may save a URL corresponding to a third party web page that the user is currently viewing. In this manner, the user may store one or more URLs corresponding to web pages served from the third party website and/or served from multiple different third party domains browsed by the user. The saved URLs may be associated with the user. When the user browses web pages associated with a particular domain, a user selectable option may be provided that enables the user to see URLs stored for the user that are associated with that particular domain. The user may then select a particular displayed URL to access the web page corresponding to the selected URL.

Abstract: An information processing apparatus includes a first management unit that manages information of an object, of which at least one of a parent or a child is determined, by a memory within the information processing apparatus, a second management unit that manages information of an object, of which at least one of a parent or a child is determined, by a memory accessible from plural information processing apparatuses, a receiving unit that receives a request which is intended for a target object managed by the first management unit or the second management unit, and a processing unit that performs processing corresponding to the request on information of the target object based on a comparison result between an owner object for which the piece of authority information is authorized and an object which is a parent of the authority object.

Abstract: Embodiments include methods, systems and computer program products method for cognitive storage management for a mobile computing device. The computer-implemented method includes monitoring, using a processor, content generation and usage on a mobile computing device by a user associated with the mobile computing device to determine usage habits of the user. The processor determines a storage capacity for the mobile computing device. The processor predicts future content generation and usage by the user based on the determined usage habits. The processor determines whether future storage capacity issues could exist based on the predicted future content usage and the determined storage capacity. The processor, in response to a determination that future storage capacity issues could exist based on the predicted future content usage and the determined storage capacity, causes at least a portion of content stored on the mobile computing device for storage in a remote storage.

Abstract: Disclosed are systems and methods for generating consistent backups. A central coordinator informs each node storing a partition of the time to perform a backup. At the designated time, each node blocks updates for a corresponding time interval measured by its local clock. Each node performs the backup operation according to its own local clock. Consistent backups may be generated in spite of clock skew between the local clocks as long as the time interval is at least as long as a maximum local clock skew (among the nodes performing the backup). In some systems the maximum local clock skew may be reduced, by a round-trip update latency from a client, for example.

Abstract: A method and associated system for repairing a script. A change type of a missed object among one or more objects of a running script that is running in a computer system is determined. The missed object is unrecognized from an original object of a previous running of the script. The script is repaired based on the change type. Determining the change type of the missed object includes determining whether a height of a new hierarchical structure including the missed object has changed as compared with a height of an original hierarchical structure including the original object. The original hierarchical structure and the new hierarchical structure are hierarchical structures formed by the one or more objects of the running script together with the missed object.

Abstract: In one aspect, support for hash based xcopy replication for synchronous replication is provided. An aspect includes determining, in response to an xcopy command, whether a source logical unit (LU) and a target LU are in active synchronous replication to the same target site. Upon determining that the LUs are in active synchronous replication, increasing a count of a hash handle list, obtaining a unique full hash digest, and sending the digest with volume replication pairing identifier, offset, and length to the target. Upon receiving a request from the source, searching, by the target, for local hash handles of the digest; and upon determining the local hash handles exist in the digest, incrementing, the reference counter handle list, and sending corresponding hash handles from the source site to the target.

Abstract: The objective of the present invention is to provide a method, apparatus, system, computing device and computer-readable medium for data migration between cloud storage systems. Here, a user equipment generates, according to a list of to-be-migrated files, descriptive information of each file in the list; and transmits one or more data migration requests to available server(s), respectively, such that the corresponding server performs data migration between different cloud storage systems, wherein each data migration request includes indication information of a source end and a destination end of the data migration and descriptive information of one or more to-be-migrated files. The present invention may satisfy various performance requirements on performance, flexibility, scalability, automation, data verify and framework universality, etc.

Abstract: An apparatus in one embodiment comprises a storage system having at least first and second storage tiers each comprising a plurality of storage devices. The storage system implements a parallel file system comprising at least first and second sets of storage servers. The first set of storage servers is configured to access directories of the parallel file system that are stored in storage devices of the first storage tier, and the second set of storage servers is configured to access directories of the parallel file system that are stored in storage devices of the second storage tier. The storage system is further configured to move data between the first and second storage tiers by moving data files between different directories of the respective first and second storage tiers. One or more servers of the first set may be generated as respective new server instances on one or more compute nodes.

Abstract: To manage complexity related to automatically saving an electronic document while the electronic document is collaboratively edited, an end user application running on a local client computer, while participating in collaborative editing of a shared electronic document, is configured to automatically save the electronic document based on both local user activity and external user activity received from a collaboration system on a server computer. The collaboration system implements a save protocol that maintains consistency of the electronic document among the shared storage, remote client computers and the local client computer. The local client computer determines a save interval based on information about external user activity through the server computer, the activity of a user of the end user application on the local client computer. The performance specifications for local and shared storage and the computer network also can be considered.

Abstract: A digital asset management application stores a mixture of original and lossy assets in a user's local storage resource. This mixture is dynamically adjusted in response to usage patterns and availability of local storage. If local storage is limited, the number of original assets stored locally is reduced. If local storage resources are critically low, lossy assets are purged. A user's interactions with his/her digital assets are monitored, and assets that are perceived to be less important to a user are purged from local storage before assets that are perceived to be more important. An asset may be deemed to be “important” based on any number of relevant criteria, such as user selection, user rating, or user interaction. Coordinating asset allocation between local and cloud-based storage resources requires little or no active management on behalf of the user, thus transparently providing the user with the benefits of cloud storage.

Abstract: A method of data recovery of a remaining set of original data from a partial set of the original data. The original data is organized by a geometry having a locality function. Each original datum occupies a point of the geometry and has a corresponding distance to each other point of the geometry as defined by the locality function. The original datum further has corresponding values. The method includes, for each remaining datum of the remaining set: identifying a family of points of the geometry corresponding to members of the partial set local to the remaining datum by using the locality function; estimating the corresponding values of the remaining datum by using a peridynamic differential operator on the corresponding values of each of the members of the partial set in the family of points; and storing the estimated values of the remaining datum on a nonvolatile storage device.

Abstract: An aspect includes memory access optimization in a processor complex. A non-limiting example includes determining one or more offload criteria for offloading memory movement in the processor complex. A memory movement process parameter corresponding to the one or more offload criteria is identified. Movement of a block of memory from a first block location at a first host to a second block location at a second host is scheduled as the memory movement process performed by an offload engine based on determining that the memory movement process parameter exceeds at least one of the offload criteria. The block of memory is moved from the first block location at the first host to the second block location at the second host as the memory movement process performed by the first host based on determining that the memory movement process parameter does not exceed at least one of the offload criteria.

Abstract: The method includes identifying, by one or more computer processors, a first content consumed by a user. The method further includes identifying, by one or more computer processors, objects in the first content. The method further includes identifying, by one or more computer processors, a second content on the Internet that is similar to the first content, wherein the second content includes one or more objects that reach a threshold similarity to the identified objects in the first content. The method further includes identifying, by one or more computer processors, a date of creation for the identified first content and the date of creation of the second content. The method further includes arranging, by one or more computer processors, the identified first content and the identified second content in chronological order.

Abstract: Technology for managing state changes of modeled objects in a three dimensional (3D) virtual environment is provided. In one example, a method may include calculating changes to modeled objects in a virtual environment. The modeled objects and the modifications may be stored in a server data store. Modeled objects in the server data store for which the modifications have been received may be flagged and queued for replication of the modifications to the modeled objects from the server data store to a non-transactional data store. The modifications may be replicated by copying modeled object state data from the server data store to the non-transactional data store.

Abstract: A distributed data store may provide continuous backup for data stored in the distributed data store. Updates to data may be replicated amongst storage nodes according to a peer-to-peer replication scheme. A backup node may participate in the peer-to-peer replication scheme to identify additional updates to be applied to a backup version of the data in a separate data store. The backup node may obtain the updates according to the peer-to-peer replication scheme and update the backup version of the data. In some embodiments, configuration changes to the data in the distributed data store may be detected via the peer-to-peer replication scheme such that a backup node can adapt performance of backup operations in conformity with the configuration change.

Abstract: According to one set of embodiments, a computer system can receive a request/command to delete a snapshot from among a plurality of snapshots of a dataset that are stored in cloud/object storage. In response, the computer system can determine a first minimum chunk identifier (ID) and a first maximum chunk ID of a range of data chunks referred to by the first snapshot, and a second minimum chunk ID and a second maximum chunk ID of a range of data chunks referred to by an immediate child snapshot of the first snapshot. The computer system can then, for each data chunk identified by a chunk ID spanning from the second minimum chunk ID to the first maximum chunk ID, check whether the data chunk is referred to by the immediate child snapshot and if not, delete the data chunk from the cloud/object storage.

Abstract: In an embodiment, an approach is provided that retrieves a source image metadata from a persistent storage media, where the source image metadata corresponds to a source image associated with a source platform, compares the retrieved source image metadata to image metadata corresponding to available virtual images associated with a target platform, identifies, based on the comparison, one of the available image metadata that is most compatible to the source image metadata, and uses the available virtual image corresponding to the identified available image metadata as a target virtual image compatible with the target platform.

Abstract: Disclosed in some examples are systems, methods, NAND memory devices, and machine readable mediums for intelligent SLC cache migration processes that move data written to SLC cache to MLC storage based upon a set of rules that are evaluated using the state of the NAND device. In some examples, the SLC cache migration process may utilize a number of NAND operational parameters to determine when to move the data written to SLC cache to MLC, how much data to move from SLC to MLC, and the parameters for moving the data.

Abstract: An illustrative approach to managing snapshots streamlines how and when snapshots are generated in a storage management system, such that fewer snapshots may be generated without diminishing the scope of data protection. A novel unified-snapshot storage policy may govern snapshots for any number of subclients. A unified-snapshot job based on the unified-snapshot storage policy enables the illustrative storage management system to automatically discover relevant components and generate at most one snapshot per target logical unit number (“LUN”) in a storage array. Each snapshot may comprise the data of any number of subclients and/or clients in the storage management system. Accordingly, one unified-snapshot job may yield a minimum but sufficient number of snapshots comprising data of all subclients associated with the governing unified-snapshot storage policy. An enhanced storage manager may manage the unified-snapshot jobs.

Abstract: Virtual machine (VM) data protection includes receiving a data stream comprising data and metadata corresponding to VM data to be backed-up and storing the data at a first location in a storage medium as a thinly distributed file. The thinly distributed file comprises a thin distribution entry between each of a plurality of data blocks to move a pointer from an end of a data block to an offset byte of a next data block. The metadata may be stored at a second location in the storage medium and may be linked to the thinly distributed file.

Abstract: A system and method are presented that identify new, modified, unchanged, and deleted files in an incremental backup through a file list maintained on the backup destination. The FileList is a flat file in which file information about each file on a source node is stored sequentially into the file. During a subsequent incremental backup, the FileList is read sequentially from the backup destination and is used to generate a search tree. A hash value based on the file path is the key to the search tree, with the file's modified time and size being hashed together to form the value of the tree's key-value pair. Files are examined on the source and compared to the key-value pairs in the search tree. Status information in the search tree is modified to indicate discovered files. Unmodified status information identifies files that have been deleted since the previous backup.

Abstract: Techniques are described for creating a virtual machine clone of a physical host computing device. A hosted hypervisor running within a host operating system on the physical computing device receives a request to boot a virtual machine clone of the device. In response to the request, the hosted hypervisor synthesizes a virtual disk that is comprised of a master boot record of the host computing device, a read-only snapshot obtained from a volume snapshot service of the host operating system and a delta virtual disk for recording changes. The hosted hypervisor then launches the virtual machine clone by attaching the synthesized virtual disk to the virtual machine clone and booting the guest operating system from the master boot record and the snapshot. Any changes made during the use of the virtual machine clone can be automatically propagated back and applied to the physical host device.