Abstract: A data storage device can have at least a buffer memory, a selection module, and a non-volatile memory. The buffer memory and non-volatile memory may consist of different types of memory while the non-volatile memory has one or more rewritable in-place memory cells. The buffer memory and non-volatile memory may each store data associated with a pending data request as directed by the selection module until a settle time of the rewritable in-place memory cell has expired.

Abstract: The invention provides a system and method for file synchronization. One embodiment of the system of this invention includes a software program stored on a computer readable medium. The software program can be executed by a computer processor to receive a file from a server; store the file as a cached file in a cache; determine if the cached file has been modified; and if the cached file has been modified, communicate the cached file directly to the database.

Abstract: Embodiments of the present disclosure provide a method and device for storage management. The method comprises receiving at a storage management device a configuration request for a storage space managed by the storage management device, the configuration request indicating a capacity of the storage space and a target size of a chunk in the storage space; and based on the capacity and the target size, dividing the storage space into a metadata region storing a chunk status indicator indicating whether the chunk is assigned with data and a data region including the chunk with the target size. Embodiments of the present disclosure also provide a corresponding device.

Abstract: A technique for facilitating file system operations in a data storage system provides multiple version family databases. Each version family database identifies members of a respective version family, i.e., a respective set of files in a file system that are related by file snapping. When a snap of a file is created, the file system updates a version family database for the version family that includes the file, such that the version family database identifies both the file and the snap.

Abstract: A method for optimizing scheduler selection by a distributed storage (DS) unit of a dispersed storage network (DSN) begins with a DS unit receiving a dispersed storage error function from a DSN user and queries DS elements to determine measured throughput and measured latency. The method resumes when the DS unit receives measured throughput and measured latency from the DSN elements and selects a scheduler based on the measured throughput and measured latency. The method continues with the DS unit receiving a different updated measured throughput and measured latency from the DSN elements and selecting a different scheduler.

Abstract: Described is an information sharing method and apparatus, which are directed to information published by a user in a social network. For information published by a user in a social network, when a sharing instruction of the user is received, a selection box comprising one or more sharing targets is displayed for the user, each sharing target has its corresponding social network, and the social network corresponding to the sharing target includes a social network which published the information; when a submission instruction of the user is received, the information is sent to a sharing target selected by the user from the selection box. By using the present method, the spread of information can be accelerated, and the implementation is simple and convenient.

Abstract: Systems, methods and devices are provided to alert a user of content delivered on multiple channels to events of interest occurring on channels other than the channel being listened to or viewed. Playback of content in which an event of interest or key event has occurred is time-shifted or delayed at the content transmission source or at the user device. Metadata that identifies events of interest in the content is transmitted to the user device. The user device generates alerts to the user based on the metadata in sufficient lead time to enable the user to not only tune to a channel on which an event of interest is occurring, but to do so sufficiently in advance of an event of interest so as to hear and/or see relevant portions of the content leading up to and/or following such an event.

Abstract: Methods and systems for Ethernet fabric protection in a disaggregated OTN switching system that include PIU modules each having multiple ports for OTN to Ethernet transceiving and an Ethernet fabric as a switching core are disclosed. An OTN over Ethernet module in each of the PIU modules may enable various OTN functionality to be realized using the Ethernet fabric which may include multiple Ethernet fabric planes. A PIU module may transmit Ethernet packets using a first working port over a first Ethernet fabric plane and may transmit Ethernet packets using a second working port over a second Ethernet fabric plane. When the PIU module detects a fault condition on the second Ethernet fabric plane, the PIU module may transmit Ethernet packets using a third protection port over the first Ethernet fabric plane instead of using the second working port.

Abstract: An information processing method includes: performing rendering on a graphical user interface to obtain at least one virtual resource object; when detecting a skill-release trigger gesture on at least one skill object, performing rendering to obtain a skill-release supplementary control object, having a skill-release control halo object and a virtual joystick object; when detecting a dragging operation on the virtual joystick object, controlling a skill-release location of the skill object to be correspondingly adjusted; and determining whether the virtual joystick object is out of a threshold range and, when the virtual joystick object is not out of the threshold range, selecting a target character object satisfying a first preset policy from at least one character object within a skill releasable range of the skill object according to a detected release operation of the dragging operation, and performing a skill-release operation on the target character object.

Abstract: A performance-based storage service level agreement (SLA) can be established that specifies one or more storage performance parameters. A storage allocation process can include receiving a request for a storage SLA that specifies one or more storage performance parameters, determining, for a virtual machine (VM) and based at least in part on the one or more storage performance parameters in the storage SLA: (i) a storage location among a set of candidate storage locations, and (ii) an amount of storage to allocate. The amount of storage can then be allocated at the storage location for the VM to use in making storage requests. Runtime enforcement of the storage SLA can utilize a scheduling mechanism that buffers individual storage requests into different queues that are used for meeting one or more storage performance requirements specified in storage SLA.

Abstract: With an idempotent POST request, the URL (and headers) cannot be used as an HTTP cache key. To cache idempotent POST requests, the POST body is digested and appended the URL with the digest and used as the cache key. Subsequent requests with the same payload will end up hitting the cache rather than the origin server. A forward cache proxy at the client end and reverse cache proxy at the server end are deployed. The client sends the request to the forward proxy that looks up the cache. If there is a cache miss, the forward cache proxy digests the body and sends only the digest to the reverse proxy. The reverse cache proxy looks up request cache to find if there is a match for the request and send that request to the server.

Abstract: Systems for managing shared entities between computing clusters while avoiding race conditions. Multiple clusters are interconnected over a network. When a node of a cluster intends to move a shared data item or virtual machine from its cluster to another cluster, the movement or migration can be initiated by establishing sole ownership followed by a request to an arbiter to intermediate during the movement or migration. The request explicitly includes subject entity metadata that describes sharing states pertaining to the subject entity. Upon granting a request, the arbiter generates a master copy of the entity metadata and grants itself read-write access. Any other sharers of the subject entity observe read-only access while the arbiter maintains the sole master copy. A sharer of the subject entity can cause changes to the subject entity through the arbiter. The arbiter can pass ownership to a new cluster to complete the subject entity migration.

Abstract: A method writes a data block from a client application onto object storage. Object storage receives a write request with a data block over an API from a coupling server, the data block being an update to a target file stored within object storage. Next, object storage receives a completion request from the coupling server for the target file. Then, object storage receives a final manifest from the coupling server, the final manifest includes for each data block of the target file an identifier for said data block, a start location, an end location or a size, and a unique identifier for the data block; the manifest has the data blocks ordered by positions in the target file. Finally, object storage assembles of new version of the target file using the final manifest, the received data block and other data blocks of the target file, and writes a new version into object storage.

Abstract: Certain embodiments described herein are generally directed to processing domain objects in a distributed system using logical sharding. In some embodiments, a central control plane (CCP) node receives a domain object. In some embodiments, if the CCP node determines that the domain object is not already present in a shared data store and that the CCP node is the logical master of the domain object, the CCP node generates a status based on the domain object, and stores the status and domain object in the shared data store. In some embodiments, the shared data store notifies the plurality of CCP nodes of the stored status and domain object.

Abstract: A computer program product, system, and method for receiving an I/O from a host; at a first splitter, adding metadata for the I/O to a backlog; and at a second splitter, sending the I/O to both a storage array and to a data protection appliance (DPA). In some embodiments, the first splitter is located at the host and both the DPA and the second splitter is located within the storage array.

Abstract: Data stores may implement prioritized scheduling of data store access requests. When new access requests are received, the new access requests may be scheduled for prioritized execution on processing resources. Access requests that are currently being executed with prioritized execution may be reprioritized to make additional capacity for prioritized execution of the new access requests. Prioritized execution may be automatically enabled or disabled for a data store based on monitoring of performance metrics for executing access requests.

Abstract: A server computer comprising an Input/Output (I/O) adapter device and a host device receives I/O requests for transactions from a client computer via a network. According to various embodiments, the host device can offload certain data processing for storing payload data for the transactions to the I/O adapter device. The I/O adapter device can perform data mirroring or data striping on the payload data and can send the mirrored or striped data for storing in the plurality of storage volumes. The plurality of storage volumes can include one or more remote storage volumes and/or one or more local storage volumes.

Abstract: A distributed file system that includes multiple computing node tiers. Each of at least some of the multiple computing node tiers has multiple computing nodes having like characteristics. The distributed file system also has an executable component in the form of a distribution component that comprises logic that distributes state of file system entities amongst the computing node tiers. The distribution is performed so that latency of file system requests are reduced due to state responsive to many requests being much closer latency wise to the file system requestor(s). Furthermore, the distribution considers durability guarantees of the state, thereby meeting durability guarantees.

Abstract: System and methods for providing private social networks, which are cloud-based in some instances, are provided herein. A method includes receiving a selection of the digital data on a private user secure data storage device from a first user, receiving a selection of one or more individuals to be given access to the digital data, applying access rights for the digital data, creating a URL that points to a location within the private user secure data storage device where the digital data resides, posting the URL to a plurality of social networks using a shared message, receiving a request from a second user for the digital data when the second user clicks the URL in the shared message, and serving the digital data to the second user directly from the private user secure data storage device without storing the digital data on any of the plurality of social networks.

Abstract: Systems and techniques are disclosed that enable an electronic document signature service to ensure that it stores electronic documents on servers within particular geographic boundaries by tracking and verifying the geographic locations of the servers. The service uses data received from the servers that identifies the geographic locations of the servers. The service also verifies the geographic locations of the servers based on network information associated with the sending of the data. One exemplary technique involves receiving data that includes geographic location identifiers that identify the geographic locations of the servers. The technique further involves verifying the geographic locations of the servers based on geographic locations associated with Internet Protocol (IP) addresses of network locations from which the data was sent.

Abstract: A method for receiving media data by a receiving apparatus in a multimedia system, the method comprising: receiving, from a transmission apparatus, a signaling message; and decoding media data corresponding to each of at least two assets based on control information included in the signaling message; wherein the control information includes time information to control an output time of decoded media data for each of the at least two asset.

Abstract: Examples include volume and snapshot replication. In some examples, a user-initiated snapshot of a volume at a source array may be created, wherein the user-initiated snapshot has a pending status and the volume is a member of a set of volumes in a replication group. A synchronization snapshot may be created of the volume at a periodic synchronization time. The synchronization snapshot may have a pending status. Each snapshot of the volume may be stored at the source array and each snapshot may be recorded via a representative entry in an original snapshot list. The volume may be incrementally replicated to a target array such that the target array has a replica of the volume at the source array via a replication engine.

Abstract: Provided is a data storage system for a computer network adapted to store a message. The data storage system includes a data storage unit and a processing unit. The processing unit stores message data of the message across one or more data elements of a data list entry of an auxiliary list in the data storage unit. The processing unit further stores an indexing pointer of the message across one or more indexing elements of an indexing list entry of an indexing list in the data storage unit. The indexing pointer is adapted to point to the data list entry. The indexing list entry further includes an indexing control element containing control information associated with the indexing list entry. The data list entry further includes control information associated with the data list entry.

Abstract: In one general embodiment, a computer program product for sharing a data management policy with a load balancer comprises a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se. Additionally, the program instructions are executable by a processor to cause the processor to perform a method comprising analyzing, by the processor, a plurality of data management factors within an object-based storage system, determining, by the processor, a data management policy for predetermined data within the object-based storage system, based on the analyzing, and sharing, by the processor, the data management policy for the predetermined data with a load balancer associated with the object-based storage system.

Abstract: A technique for managing snaps of data objects is disclosed. Managing snaps of a data object hosted by a source data storage system (source) involve specifying, by the source, a set of policies for snaps of the data object stored on a destination data storage system (destination). The set of policies include a remote access policy information to designate a destination snaps as remote access enabled. The policy information is transferred to the destination enabling policy implementation on destination snaps. Destination snaps designated as remote access enabled are associated with a SCSI target at the destination. A virtual volume having virtual snaps associated with corresponding remote access enabled destination snaps is created at the source. The virtual volume is configured as a SCSI initiator, and exposed to a host providing access of destination snaps at the source; the source and destination are file systems implementing checkpoint functionality.

Abstract: A data processing system and method delivers an open profile personalization system based on profile data structures that contain one or more interest nodes or channels. The channels can be created or subscribed to by the user, provided by social media friends of the user, and/or suggested by editors of the system. The interest nodes include respective sets of targets and qualifiers, where the targets and qualifiers comprise types of attributes to be used in the filtering of information files for delivery as a result set for the interest nodes. Targets and qualifiers are applied to the types of attributes and available information files to produce a filtered set. Web pages showing personalized results include tools based on content analysis to assist the user in creation and editing of the open profile.

Abstract: A computer implemented method, system, and computer program product comprising splitting IO from a LUN on the production site to a data protection appliance (DPA), accumulating IO at the DPA until a threshold of IO is reached, and upon reaching the threshold, sending an object containing the IO to an object store.

Abstract: Some embodiments provide partitioned serialized caching and delivery of large sized content and files. Some embodiments partition requests for large sized content into segment requests with each segment request identifying a different byte range of the requested content. Each segment request is hashed to identify a particular server from a set of servers tasked with caching and delivering a different segment of the requested content. In this manner, no single server caches or delivers the entirety of large sized content. The segment requests are distributed serially across the set of servers so that the segments are passed in order, wherein the serial distribution involves handing-off the requesting user's connection serially to each server of the set of server in the order with which the set of servers deliver the content segments.

Abstract: A data storage device includes a nonvolatile memory device including a plurality of memory blocks, and a storage controller that manages a plurality of streams in the plurality of memory blocks. The storage controller receives, from a host, a write command that requests a write operation and a data block including write data and an application tag appended to the write data, and selects one of the plurality of streams based on the application tag included in the data block. The storage controller writes the write data included in the data block into the selected one of the plurality of streams.

Abstract: Described are techniques for storing data. A write operation is received that is directed to a target logical address of a logical device where physical storage has not been allocated for the target logical address. The logical device has a service level objective denoting a performance goal to be maintained with respect to I/O operations for the logical device. A storage tier is selected from a plurality of storage tiers from which to allocate storage for storing write data of the write operation. The selecting is performed in accordance with determining a match between an expected level of performance of the storage tier and the performance goal. First physical storage is allocated from the storage tier. A logical address subrange of the logical device is mapped to the first physical storage. The write data is stored in the first physical storage at a location mapped to the target logical address.

Abstract: A virtual machine creation method and apparatus are disclosed. The method includes: acquiring a first installation package of a first application; determining essential environmental data corresponding to the first installation package; obtaining a simplified operating system via compilation according to the essential environmental data; packaging the simplified operating system and the first installation package to obtain a virtual machine installation package; and running the virtual machine installation package to create a virtual machine.

Abstract: A method of monitoring memory performance comprises selecting a first portion of memory from two or more portions of memory in accordance with an adaptive mode indicated by configuration bits in a control register; monitoring memory accesses to the selected portion of memory during a first sampling period; selecting a different portion of memory from the two or more portions of memory in accordance with the adaptive mode for monitoring the different portion of memory in a subsequent sampling period; monitoring memory accesses to the different portion of memory during the subsequent sampling period; recording a respective number of memory accesses for each portion of memory over a plurality of sampling periods; and generating one or more interrupts to output data regarding the monitored memory accesses for data analysis.

Abstract: Systems for managing user collaboration over objects stored on a cloud-based service platform. A server in a cloud-based platform maintains a set of read/write metadata that is associated in one-to-one correspondence to stored objects that are accessible by two or more collaborators. The server does not maintain a list of peers that communicate over peer-to-peer connections, rather the server exposes a semaphore for access to the metadata that pertains to a particular one of the stored objects. The server responds to download requests from the collaborators so as to deliver executable signaling protocol computer code to the collaborators' user devices. The signaling protocol code includes semaphore access by the collaborators' user devices using an application programming interface. Two or more accesses over the same semaphore establishes a leader and at least one follower. Corresponding ephemeral peer-to-peer connections are established between the leader and the at least one follower.

Abstract: A programmable controller of an embodiment is a programmable controller connected to a device to be a controlled object via a network, and includes a control unit that requests the device to notify an identifier of the device and mode information via the network, the mode information defining a utilized function and an operation method of the device; and a storage unit that stores the identifier and the mode information notified by the device via the network in response to the request.

Abstract: The present application is directed to methods and systems that provide for identification of a server, within a distributed computing environment, through which an object can be accessed. The object is associated with metadata that identifies a server currently responsible for providing access to the object. By these methods and system, a request to access an object can be directed to an appropriate server, without first accessing a centralized dispatching node and without access to detailed mappings of access-type/object pairs to servers in a distributed computing environment.

Abstract: Embodiments of the present invention provide methods, systems, and program products for concurrent data retrieval from multiple loud storage devices. Embodiments of the present invention can be used to retrieve stripes of target data from at least a first network device, retrieve redundancy data of the target data from a second network storage device that is different from the first network storage device concurrently and reconstructing the target data based on the stripes of the target data and the redundancy data.

Abstract: A catalog of services defines which storage-related services are applied to each service level of storage where storage capacity is managed and allocated in terms of chunks of capacity at different service levels. Each service level is defined based on one or more of tiered storage policy settings, drive size, drive speed, drive count, RAID protection, engine fractions, bandwidth and availability and characterized by one or more performance capabilities. Examples of services in the catalog include but are not limited to mobility, availability, continuity, and recovery services. Any combination of services, or no services at all, can be associated with a given service level of storage. Services may be performed at different performance levels. Further, services may be provided on-demand and billed on a usage basis.

Abstract: Inventive aspects include one or more local servers each including a local universal access logic section, one or more remote servers each including a remote universal access logic section, and a coherency node to provide coherent access to first data that is stored on the one or more local servers to the one or more remote servers, and to provide coherent access to second data that is stored on the one or more remote servers to the one or more local servers. Embodiments of the inventive concept herein can use hardware and/or software mechanism to unify direct and remote attached devices via command, data, status, and completion memory queues. Applications and operating systems can be presented with a uniform access interface for sharing data and resources across multiple disparately situated servers and nodes.

Abstract: Among other things, one or more techniques and/or systems are provided for controlling resource access for background tasks. For example, a background task created by an application may utilize a resource (e.g., CPU cycles, bandwidth usage, etc.) by consuming resource allotment units from an application resource pool. Once the application resource pool is exhausted, the background task is generally restricted from utilizing the resource. However, the background task may also utilize global resource allotment units from a global resource pool shared by a plurality of applications to access the resource. Once the global resource pool is exhausted, unless the background task is a guaranteed background task which can consume resources regardless of resource allotment states of resource pools, the background task may be restricted from utilizing the resource until global resource allotment units within the global resource pool and/or resource allotment units within the application resource pool are replenished.

Abstract: Described herein are improved systems, methods, and devices for delivering and managing metadata in a distributed computing platform such as a content delivery network (CDN) so as to configure content servers to handle client requests. The teachings hereof provide, among other things, scalable and configurable solutions for delivering and managing metadata, preferably by leveraging dynamically obtained control information. For example, in one embodiment, a given content server may store metadata, e.g., in a configuration file, that references dynamic, late-bound control information for use in satisfying dependencies. This dynamic control information can be requested by the CDN content server, typically from a remote host, when needed to parse and execute the metadata.

Abstract: Methods and systems for evaluating compatibility of a cloud of computers to perform one or more workload tasks. One or more computing solution aspects are determined that corresponding to one or more sets of workload factors, where the workload factors characterize one or more workloads, to characterize one or more computing solutions. The workload factors are compared to the computing solution aspects in a rule-based system to exclude computing solutions that cannot satisfy the workload factors. A computing solution is selected that has aspects that accommodate all of the workload factors to find a solution that accommodates the one or more individual workloads.

Abstract: Techniques for exploiting variable media sizes to create new redundancy encoded data storage systems are described herein. A set of storage devices is selected based at least in part on each storage device having an available capacity and, using the set of storage devices, a set of shards for a redundancy encoded data storage system is generated such that each shard of the set of shards has a storage capacity corresponding to the minimum available capacity of the set of storage devices.

Abstract: The present invention provides a content delivery network routing method, system, and user terminal. The method includes: receiving, by a CDN routing device, a first service request sent by a user terminal, where the first service request carries a first uniform resource locator URL and a domain name; returning, by the CDN routing device, a redirection response message to the user terminal, where the redirection response message carries a second URL, and the domain name; and receiving, by the cache node, a second service request sent by the user terminal, and returning a header field indication to the user terminal. Therefore, when the user terminal accesses content accelerated by a CDN, the user terminal can obtain cookie information corresponding to a domain name, which is advantageous to network-side authentication and user login information management.

Abstract: The described system provides that backend array-based snapshots may be created separately on each site of a cluster, and then the snapshots fixed so as to be consistent and/or otherwise identical among the plurality of sites. The system advantageously allows creation of a consistent cluster-wide snapshot with minimal or no I/O delays. In an embodiment, the system provides for use of a change tracker that tracks the metadata of all the I/Os incoming to the volumes being snapped. When the system wants to create a snapshot on all sites, the change tracker is activated on each site separately for the volumes being snapped. A snapshot is then created on each of the cluster sites/backend storage arrays separately. The change trackers are then ordered to stop tracking. A snapshot fixing procedure is then initiated.

Abstract: Techniques for routing network traffic in a storage processor involve providing per-IP routing tables for each IP address of a virtual server and a per-server routing table. These per-IP and per-server routing tables specify its own interface(s) with external network(s). The storage processor assigns each outbound protocol data unit (PDU), generated by a particular virtual server, to either a per-IP routing table or a per-server routing table provided for that virtual server. The assignment of the routing table is based on source IP address or a connection mark associated with an outbound PDU. The per-IP or per-server routing table(s) identifies an interface through which the packet is routed to the destination IP address.

Abstract: A plurality of storage nodes cooperating as a storage cluster is provided. Each of the plurality of storage nodes has storage memory. Each storage node of the plurality of storage nodes is configurable to direct erasure coded striping of data of one of an Mode or data segment across the plurality of storage nodes of the storage cluster, with at least one storage node of the plurality of storage nodes having a differing amount of storage capacity of the storage memory from an amount of storage capacity of another storage node in the plurality of storage nodes. A method of storing data in a storage cluster is also provided.

Abstract: In one embodiment of a network pipe optimization method, a network element may obtain at least one of a push pipe utilization report and a pull pipe utilization report from each distribution node of the content delivery network. Based on the utilization reports, the network element may determine new push pipe weights and new pull pipe weights for distribution pipes associated with each distribution node of the content delivery network. Using at least one of the new push pipe weights and new pull pipe weights, a network pipe utilization model associated with the content delivery network may be simulated. Responsive to determining that the simulated network pipe utilization model yields an improved utilization of the content delivery network, the new push pipe weights and new pull pipe weights may be distributed to each distribution node in the content delivery network.

Abstract: Methods and apparatus are provided for selecting a Content Delivery Network (CDN) for Internet Protocol (IP)-based services. A service request message is received from a user. The service request message includes user location information. The CDN is selected in accordance with the user location information. The service request message is transmitted to the CDN for connection of a corresponding delivery function module of the CDN to the user.

Abstract: Example methods, apparatus, and articles of manufacture to control generation of memory access requests in processor systems are disclosed. A disclosed example method involves determining at a memory controller whether a memory access queue depth for a memory reference is greater than a first threshold. When the memory access queue depth for the memory reference is greater than the first threshold, an indication is sent to control generation of memory access requests corresponding to the memory reference.

Abstract: A gaming terminal data repository (GTDR) for storing game software components and transaction information for gaming machine and gaming terminals is disclosed. A system database is partitioned according to different gaming entities allowing game software component configurations of particular gaming terminals to be easily analyzed and modified. Game software components for gaming terminals connected to the GTDR may be automatically updated using various triggers. System gaming machines may utilize a combination of game software components residing on the gaming machine and those received from the GTDR. A player compliance module (PCM) can be adapted to detect significant changes to gaming machine or gaming terminal playing conditions or parameters, and provide appropriate notices to players of such changes dynamically. The PCM can also facilitate the creation of a log or audit trail to confirm that such player notices have been provided.