Abstract: A storage system comprising a processor in operable communication with a storage device is configured to have first, second, and third tables and first, second, and third respective metadata journals storing time-based information associated, respectively, with the first, second, and third tables. The first table maps logical addresses associated with LUNs associated with the storage device to respective hash digests computed based on data residing at respective logical addresses. The second table maps a range of hash digests to respective associated physical locations on the storage device. The third table maps disk block allocation on the storage device. An online system checkpoint is created, comprising information relating to the state of the storage system at a point in time, where the first, second, and third, metadata journals are destaged in order so as to destage information stored in the respective journal up to the point in time.

Abstract: Provided is a time-shift retransmission system which is a system that manages communication of a remote sensor connected to a communication line, the time-shift retransmission system including: a) temporary storage means in which measurement values measured according to a sampling schedule by the remote sensor is temporarily stored at a predetermined interval; and b) retransmission means that retransmits the measurement values according to a retransmission schedule with plural different cycles, in which a delay time from the measurement to the retransmission differs according to the cycle, and the delay time is set in a range in which the data amount of a measurement value group that is temporarily stored within the delay time falls within the storage capacity of the temporary storage means.

Abstract: A storage system in a clustered system may receive a first input/output (I/O) request. The storage system may include one or more storage nodes. Each of the one or more storage nodes may have a copy of a particular object stored thereon. The storage system may execute the first I/O request. Executing the first I/O request may modify data of a first object in a first storage node. The first object may be a copy of the particular object. The storage system may transfer the modified data of the first object to a master storage node. The master storage node may include a master object update descriptor list.

Abstract: A method and apparatus for accessing a storage device is disclosed. More specifically, for load balancing by dynamically transferring memory address range assignments. In one embodiment, a storage device receives, from a host apparatus, an access request directed at two or more storage addresses, assigns, based on a first storage address of the two or more storage addresses, the access request to a first processor of two or more processors of the storage device, obtains a local memory lock based on the first storage address, determines, based on a second storage address of the two or more storage addresses, that the second storage address is assigned to a second processor of the two or more processors, obtains a remote memory lock from the second processor based on the second storage address and processes the access request.

Abstract: A memory system includes a semiconductor memory device including a plurality of blocks, and a controller configured to register a block designated in a protection command as a protected block in a storage region. When the control circuit receives from a host a command to erase the protected block or write to the protected block, the control circuit does not issue a corresponding erase or write command to the semiconductor memory device and notifies the host of the failure to execute the command.

Abstract: According to one embodiment, a tiered storage system includes a first storage device, a second storage device and a storage controller. The storage controller determines, when a range of an access request to a logical unit extends over some of logical extents in the logical unit, that these logical extents are correlated with each other. The storage controller transfers data of a set of the correlated logical extents as one extent group collectively in units of physical extents between the first storage device and the second storage device.

Abstract: Described is storage system and method for reducing power consumption. The storage system has first and second physical disks configured to provide mirroring. The first physical disk is placed into a power-saving mode of operation, while the second physical disk is in an active mode of operation responding to read and write requests. The first physical disk transitions from the power-saving mode of operation to an active mode of operation for destaging writes pending from cache to the first physical disk, while the second physical disk responds to read and write requests. The second physical disk transitions from the active mode of operation to the power-saving mode of operation, while the first physical disk responds to read and write requests.

Abstract: Embodiments are directed to techniques for enforcing prerequisite conditions on a data object for an operational feature both upon initiation of that operational feature and while that operational feature is maintained. Accordingly, improved techniques enforce conditions by setting a flag associated with a data object upon confirming that the conditions have been met and checking the flag anytime a configuration change to the data object is requested that would cause the conditions to be violated. If the flag is set, any configuration change that would cause the conditions to be violated is rejected.

Abstract: Various examples described herein provide for a management processor that reads a registration script from a peripheral device, and uses the script to act in proxy to register the peripheral device as a data provider on the management processor. Once a peripheral device is registered as a data provider on the management processor, the management processor can permit the peripheral device to host a management resource on the management processor. By accessing the hosted management resource through the management processor, a client can manage, monitor, or control the peripheral device.

Abstract: A flash memory controller for controlling a flash memory module includes a communication interface for receiving a first data and a second data; and a processing circuit for dynamically controlling a data writing mode of the flash memory module according to an amount of stored data in the flash memory module. If the amount of stored data in the flash memory module is less than a first threshold when the communication interface receives the first data, the processing circuit controls the flash memory module so that the first data is written into the first data block under an one-bit-per-cell mode.

Abstract: Scalable architectures provide resiliency and redundancy and are suitable for cloud deployment. The architectures support extreme data throughput requirements. In one implementation, the architectures provide a serving layer and an extremely high speed processing lane. With these and other features, the architectures support complex analytics, visualization, rule engines, and centralized pipeline configuration.

Abstract: Described is a technology by which an owner node in a server cluster maintains ownership of a storage mechanism through a persistent reservation mechanism, while allowing non-owning nodes read and write access to the storage mechanism. An owner node writes a reservation key to a registration table associated with the storage mechanism. Non-owning nodes write a shared key that gives them read and write access. The owner node validates the shared keys against cluster membership data, and preempts (e.g., removes) any key deemed not valid. The owner node also defends ownership against challenges to ownership made by other nodes, so that another node can take over ownership if a (formerly) owning node is unable to defend, e.g., because of a failure.

Abstract: Example implementations relate to a method of tracking data in a non-volatile memory device (NVM) device. A meta-data block from the NVM device is obtained, where the meta-data block includes meta-data. The meta-data block from the NVM device is used to track an associated data object, meta-data in the data block, a user data block, a meta-data block, or an additional data block. The meta-data block from the NVM device is used to point to the associated data object, the meta-data in the data block, the user data block, the meta-data block, or the additional data block. The meta-data block from the NVM device is further used to link the associated data object, the meta-data in the data block, the user data block, the meta-data block, or the additional data block.

Abstract: A storage system includes a host including a processor and a storage device including a controller and a flash memory unit. The host is configured to read physically fragmented data of a file stored in one or more physical storage regions of the flash memory unit and write the data continuously into other one or more physical regions of the flash memory unit, such that the data are physically defragmented.

Abstract: Provided in some embodiments are systems and methods for assessing electronic data duplication. Embodiments include extracting first samples of electronic data files and applying a first hash function to the first samples to generate first hash digests. Determining first groupings of the electronic data files having a same file size and first hash digest. Extracting second samples the electronic data files of the first groupings and applying a second hash function to the second samples to generate second hash digests. Determining second groupings the electronic data files having a same file size, a same first hash digest and a same second hash digest. Applying a third hash function to the contents of the electronic data files of the second groupings to generate third hash digests. Determining duplicate electronic data files having a same file size and same first, second, and third hash digests.

Abstract: Provisioning timestamp-based storage units for time series data is described. A time series database system determines a remaining time period for a first storage unit to reach a storage capacity, the first storage unit storing first data with a first minimum timestamp. The time series database system provisions a second storage unit if the remaining time period for the first storage unit satisfies the provisioning threshold and stores second data with a second minimum timestamp to the second storage unit. The time series database system dispatches a query for third time series data to any storage unit if a time span from a minimum timestamp to a maximum timestamp associated with the storage unit includes at least part of a time range associated with the third time series data. The time series database system responds to the query for the third time series data based on dispatching the query.

Abstract: A method, computer program product, and computer system for receiving, by a computing device, an I/O request for data. A number of storage devices of a plurality of storage devices in a Mapped RAID group that will be used to process the I/O request may be determined. It may be determined whether each storage device of the number of storage devices in the Mapped RAID group that will be used to process the I/O request has a respective threshold number of credits to process the I/O request. If each storage device of the number of storage devices in the Mapped RAID group that will be used to process the I/O request has the respective threshold number of credits, the I/O request may be processed. If at least one storage device of the number of storage devices in the Mapped RAID group that will be used to process the I/O request lacks the respective threshold number of credits, the I/O request may be queued.

Abstract: The disclosed computer-implemented method for efficiently moving data within a filesystem may include (1) partitioning, on a storage device, physical address space of a filesystem into a plurality of logical partitions, (2) allocating, on the storage device, at least one container of data block identifiers representing data blocks for each of the logical partitions, (3) maintaining, on the storage device, a partition map of values identifying the container of data block identifiers, the logical partitions, and at least one offset associated with each of the logical partitions, (4) sending, on the storage device, the data blocks from a source logical partition within the logical partitions to a target logical partition within the logical partitions, and (5) updating, on the storage device, the partition map based on the data blocks sent from the source logical partition to the target logical partition. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Embodiments of the invention provide systems and methods for managing processing, memory, storage, network, and cloud computing to significantly improve the efficiency and performance of processing nodes. More specifically, embodiments of the present invention are directed to an instruction set of an object memory fabric. This object memory fabric instruction set can include trigger instructions defined in metadata for a particular memory object. Each trigger instruction can comprise a single instruction and action based on reference to a specific object to initiate or perform defined actions such as pre-fetching other objects or executing a trigger program.

Abstract: A method for execution by a dispersed storage and task (DST) processing unit that includes a processor includes generating storage unit heat data based on a plurality of temperature readings received from each of a plurality of storage units, where the storage unit heat data indicates a first hot storage unit. A pair of storage units is selected from the plurality of storage units based on the storage unit heat data, where the pair of storage units includes the first hot storage unit and a second storage unit. A data swap request is generated for transmission to the pair of storage units, where the data swap request includes an instruction to transfer at least one first data slice from the first hot storage unit to the second storage unit and to transfer at least one second data slice from the second storage unit to the first hot storage unit.

Abstract: In one example, a method for managing data includes defining a policy concerning migration of a dataset, and the policy specifies a condition that the dataset is to be migrated from a first storage entity to a second storage entity after the passage of a length of time during which the dataset was not accessed. The policy is then associated with the dataset. Next, a determination is made as to whether the condition of the policy has been met, and when the condition of the policy has been met, the dataset is automatically migrated from the first storage entity to the second storage entity.

Abstract: In one embodiment, a method includes replicating a production volume on a plurality of replica volumes. Each replica volume is stored on a respective storage array with a respective journal. The replicating includes writing data to a do stream of each journal written to the production volume, reading from the do stream of each journal, reading undo data that will be overwritten by the data in the do stream, distributing the undo data across the journals and writing the data from the do stream from each journal to the respective replica volume. A number of journals less than a total number of journals can be used to access data in a full journal.

Abstract: In one embodiment, a method includes measuring a first parameter associated with copying a storage entity to a first backup site, measuring a second parameter associated with copying the storage entity to a second backup site and determining a replication mode to copy the storage entity to the first backup site and a replication mode to copy the storage entity to the second backup site in response to a replication policy and the first and second parameters measured.

Abstract: A backup source volume is a virtual volume, a plurality of regions of the backup source volume is allocatable to the storage device. A storage control device is configured to set a backup destination volume, the backup destination volume includes a plurality of regions, store allocation information which indicates a first region of the plurality of regions of the backup source volume is allocated to the storage device and indicates a second region of the plurality of regions of the backup source volume is not allocated to the storage device, the first region and the second region corresponding to a third region and a fourth region included in the plurality of regions of the backup destination volume respectively, set the forth region free from the first data stored in the at least one storage device, and copy second data stored in the first region to the third region.

Abstract: Described embodiments provide systems and methods for operating a storage system. One or more data replicas of production data of the storage system are generated. For each of the one or more data replicas, an associated hash value is generated. The one or more data replicas are stored in a replica storage of the storage system, and the associated hash values are stored as journal data associated with the respective data replica. Each data replica is verified based upon the hash value retrieved from the journal data.

Abstract: Described embodiments provide systems and methods for synchronizing a production volume and a backup volume of a storage system. A first thin volume is created and associated with the production volume. A first replica of the production volume is generated by copying data from the production volume to a replica volume. During the copying, an I/O request to be written to the production volume may be received. Data from the I/O request is written to the first thin volume and data changed due to the I/O request is tracked in metadata associated with the production volume and the first thin volume. A size of the first thin volume is checked, and when the size of the first thin volume is below a threshold, changes from the first thin volume are applied asynchronously to the backup storage.

Abstract: Described embodiments provide devices, systems and methods for operating a storage system. An object store located at the replication site stores data objects associated with data stored in storage of the production site. The replication site may generate a plurality of points in time (PITs) from the data objects and identify a PIT from the plurality of PITs.

Abstract: A system and method for creating and managing snapshots. Mediums are recorded and maintained, all of which are read-only except for the most recent mediums in use by a volume. Multiple volumes may be maintained, including a first volume which points to a first medium. When a snapshot of the first volume is taken, a second medium is created that points to the first medium. The first volume is also updated to point to the second medium. The first medium becomes the underlying medium of the second medium, and lookups are performed initially on the second medium and then on the first medium if the data is not located in the second medium.

Abstract: A data writing method, a memory control circuit unit, and a memory storage apparatus are provided. The method includes recording a flush command counting (FCC) value, and updating the FCC value whenever receiving a flush command from a host system. The method further includes getting a first physical erasing unit as an active physical unit and determining whether the FCC value is greater than a FCC value threshold. The method further includes setting a writing mode of the active physical unit as a first writing mode if the FCC value is greater than the FCC value threshold, and setting the writing mode of the active physical unit as a second writing mode if the FCC value is not greater than the FCC value threshold.

Abstract: Examples disclosed herein involve refreshing webpages of a browser based on estimated memory consumption of the browser. A memory consumption of a webpage may be estimated by and a memory consumption threshold may be determined based on characteristics of a computing device executing or implementing the browser. Webpages of the browser are refreshed when the estimated memory consumption satisfies the memory consumption threshold.

Abstract: A storage controller controlling a plurality of storage media devices receives one or more commands from a queue representing a load, identifies a first set of weighted storage region having a slow access rate in the plurality of storage media devices and a second set of weighted storage regions having a fast access rate in the plurality of storage media devices, computes an optimal sustained performance level as function of the first set of weighted storage regions having the slow access rate and the second set of weighted storage regions having the fast access rate, and distributes load based on said computed optimal sustained performance level.

Abstract: A method for handling namespace reservations in a Non Volatile Memory express (NVMe) controller includes a NVMe hardware module collecting a data access request from a host device, the NVMe hardware module determining a validity of the collected data access request, wherein the validity of the data access request is determined based a reservation specific to the host and data indicated in the data access request, and the NVMe hardware module notifying the NVMe firmware module of the determined validity of the collected data access request. The method further includes a NVMe firmware module accepting the data access request when the data request is notified by the NVMe hardware module as being valid, and the NVMe firmware module rejecting the data access request when the data request is notified by the NVMe hardware module as being invalid.

Abstract: A processing device generates a clone of a first volume of storage, the first volume comprising a plurality of storage blocks, wherein the clone is a second volume that is writable and that references the plurality of storage blocks. The processing device increments a global volume count that represents a number of volumes. For each storage block of the plurality of storage blocks, the processing device postpones an update to metadata of the storage block until an event that causes any volume to stop referencing the storage block, wherein the metadata indicates volumes that reference the storage block.

Abstract: Provided are a computer program product, system, and method for managing point-in-time copies for extents of data. A point-in-time copy for at least one range of extents in at least one volume for a point-in-time copy identifier is established. Change recording information is generated indicating each of the at least one range of extents less than all of the extents in the at least one volume. An update to data in the at least one range of extents in the point-in-time copy is received and data in the source storage in the at least one range of extents to be updated is copied as changed data to the target storage. Indication is made in the change recording information of the data in the at least one range of extents that has been updated.

Abstract: Various embodiments of systems and methods for optimizing in-memory column based database table compression. A system may receive a parsed in-memory columnar database table as an input and reads an aggregated compression score from memory corresponding to the parsed database table. A total compression score may be computed iteratively for the database table in order to determine whether the total compression score is greater than the aggregated compression score. When the total compression score determined to be greater than the aggregated compression score, the aggregated compression score is assigned to a best compression score. To optimize in-memory database table compression, the given database table may be compressed using the best compression score.

Abstract: Example apparatus and methods provide a log structured block device for a hard disk drive (HDD). Data that is to be stored on an HDD is serialized and written as a series of data blocks using a sequential write. Information about where individual data blocks were supposed to be written (e.g., actual address, neighboring data blocks), where data blocks were actually written, and how often data blocks are accessed is maintained. During garbage collection, data blocks that are being accessed with similar frequencies may be relocated together, with the most frequently accessed (e.g., hottest) data blocks migrating to the outer cylinders of the disk and the least frequently accessed (e.g., coldest) data blocks migrating to the inner cylinders. Blocks stored in the same temperature regions that were intended to be located together when written may be repositioned to facilitate sequential reads.

Abstract: Methods, systems, and computer readable media for submission queue pointer management are disclosed. One method is implemented in a data storage device including a controller and a memory. The method includes fetching a plurality of commands from a submission queue. The method further includes parsing at least one of the commands. The method further includes, in response to successful parsing of at least one of the commands and prior to executing all of the commands, notifying a host to advance a head entry pointer for the submission queue by a number of entries corresponding to a number of the commands successfully parsed.

Abstract: A hybrid memory system provides rapid, persistent byte-addressable and block-addressable memory access to a host computer system by providing direct access to a both a volatile byte-addressable memory and a volatile block-addressable memory via the same parallel memory interface. The hybrid memory system also has at least a non-volatile block-addressable memory that allows the system to persist data even through a power-loss state. The hybrid memory system can copy and move data between any of the memories using local memory controllers to free up host system resources for other tasks.

Abstract: A method, computer program product, and computing system for receiving an IO request for a RAID array. An actual queue depth of the RAID array is compared to a maximum queue depth for the RAID array. An IO queue weight is determined for the IO request. The IO queue weight is revised based upon a degrade mode condition for the RAID array, thus defining a revised IO queue weight. The actual queue depth is incremented based upon the revised IO queue weight.

Abstract: A system to generate perform document optimizations is described. The system includes at least one physical memory device and one or more processors coupled with the at least one physical memory device, the one or more processors to receive a print file including one or more print jobs to be processed, determine a number of processing steps to be implemented to process the print file, generate a microservice corresponding to each of the step components and process each of the step components via a corresponding microservice.

Abstract: An information processor includes an image data generating circuitry and a communicator. The image data generating circuitry includes a logical page generating circuitry and a page adjusting circuitry, and generates image data. The logical page generating circuitry generates a plurality of logical pages each containing a plurality of pages. The page adjusting circuitry adjusts number of pages of the plurality of pages contained in a first logical page of the plurality of logical pages. The image data contains the plurality of logical pages. The communicator transmits the image data to an image forming unit. The image forming unit is able to cut a recording medium by using the logical pages as a reference, and forms an image on the recording medium by using the logical pages as a reference.

Abstract: A display system includes first and second operation displays, wherein the display system causes the first and second operation displays to perform a cooperative operation, in a case where a predetermined operation has been received via the first operation display when the first operation display is in a power saving display state and the first and second operation displays are not performing the cooperative operation, the state of the first operation display is changed to the normal display state, and in a case where the predetermined operation has been received via the first operation display when the first operation display is in the power saving display state and the second operation display is in the normal display state and the first and second operation displays are performing the cooperative operation, the display system maintains the first operation display in the power saving display state.

Abstract: An image recording apparatus includes: a first communication interface configured to perform communication according to a first communication standard; a second communication interface configured to perform communication according to a second communication standard that is different from the first communication standard and that is a wireless communication standard; an image recorder; and a controller. The controller receives image data and first identification information from an image-data output device via the first 02-19 communication interface. The controller broadcasts the received first identification information via the second communication interface.

Abstract: A printing system includes at least one processor that acts as a storing unit and a determination unit. The storing unit causes history data about a print job to be stored into storage. The determination unit determines whether to cause a user to perform confirmation processing at a time of printing based on the history data about the print job that is stored in the storage.

Abstract: An information processing apparatus includes processors and memories to store a plurality of instructions which cause the processors to store, in the memories, usage authority information associating, for each of users, user information identifying the user with authority information. The authority information associates, for each of image forming apparatuses, device information identifying the image forming apparatus with function information indicating function of the image forming apparatus allowed to be executed or restricted from being executed.

Abstract: Disclosed is a job processing device, including a job receiver; a hardware processor that: detects a trouble caused in the job processing device; searches other job processing devices which can be a substitute execution destination of the job in case that the trouble is detected, displays the searched job processing devices as candidates of the substitute execution destination, and receives a selection of the displayed job processing device as the substitute execution destination from a user, transfers the job to the selected job processing device, and specifies the user who selects the substitute execution destination; and a memory that stores information in which the selected job processing device is related to the specified user, wherein in case that the information is stored in the memory, the hardware processor displays the searched job processing device and the user to whom the searched job processing device is related.

Abstract: A method for creating local hot folders is provided. The method includes: receiving, by a print server that includes a first network hot folder and a second network hot folder, a request to create at least one local hot folder on a user computing device; determining, by the print server, that the request corresponds to the first network hot folder; and transmitting, by the print server to the user computing device, a first instruction set comprising an instruction to create a first local hot folder that implements a first transfer protocol. The first network hot folder executes a predetermined process and requires the first transfer protocol in response to executing the predetermined process, and the second network hot folder executes another process and requires a second transfer protocol.

Abstract: A system method for multiple account document processing cost accounting includes a multifunction peripheral including an intelligent controller having a processor and memory. A document processing engine operates in conjunction with an instructions issued from the intelligent controller. The intelligent controller receives into memory document processing job data associated with a user. A user interface receives user input identifying the user. The processor calculates a cost for completing a document processing operation with the document processing job data and the calculated cost is displayed. The processor identifies of cost centers associated with an identified user and displays indicia identifying them, along with their associated account values. The processor receives a user selection identifying a selected cost center and completes a document processing operation with the job data and commences a debit from the account value of the selected cost center.

Abstract: In a communication system, an image forming apparatus sends an address of a receiving section to an external device. The external device receives a selection of image data through plural thumbnails displayed on a display section, and wirelessly sends the selected image data to the image forming apparatus with the address. The image forming apparatus receives the selected image data sent with the address by the external device, and prints an image based on the selected image data. The image forming apparatus accepts a selection indicating whether a communication between the external device and the image forming apparatus is performed by a first communication system method or a second communication system method.

Abstract: An operation terminal connected to an information storage apparatus and an output apparatus, comprising a processor that obtains a file from the information storage apparatus; displays, on a monitor, an image of the obtained file and a button for selecting an output device for outputting the file; displays, after the button has been pushed, a two-dimensional code photographing screen; the two-dimensional code photographing screen for photographing a two-dimensional code by a camera; obtains, after the two-dimensional code is photographed by the camera while the two-dimensional code photographing screen is displayed, information that specifies the output device; wherein the information that specifies the output device is obtained from the photographed two-dimensional code; and sends, to the output device through a network, an output request for outputting the file of the image displayed on the monitor, based on the obtained information that specifies the output device.