Abstract: A method for updates in a storage system is provided. The method includes writing identifiers, associated with data to be stored, to storage units of the storage system and writing trim records indicative of identifiers that are allowed to not exist in the storage system to the storage units. The method includes determining whether stored data corresponding to records of identifiers is valid based on the records of the identifiers and the trim records.

Abstract: A memory monitoring and selective defragmentation method and system disclosed herein monitor memory usage by and modification of one or more database indexes. The monitoring and selective defragmentation method and system selectively defragment the one or more database indexes based on memory cost savings as opposed to a percentage of fragmentation to improve performance of databases.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for receiving a write request that includes data and a client address at which to store the data. The data is segmented into the one or more storage units. A storage unit identifier for each of the one or more storage units is computed that uniquely identifies content of a storage unit. A mapping between each storage unit identifier to a block server is determined. For each of the one or more storage units, the storage unit and the corresponding storage unit identifier is sent to a block server. The block server stores the storage unit and information on where the storage unit is stored on the block server for the storage unit identifier. Multiple client addresses associated with a storage unit with the same storage unit identifier are mapped to a single storage unit.

Abstract: A deduplication processing method is provided. A storage device includes a plurality of memories and each memory includes at least one physical block. Parameter information of an initial memory representing any one of the plurality of memories in the storage device is obtained. The parameter information includes at least one of a weight of the at least one physical block in the initial memory or a space usage of the initial memory, and the weight of the at least one physical block corresponding to a next write time point of the at least one physical block. A deduplication weight of the initial memory according to the parameter information of the initial memory is obtained. A target memory having a largest deduplication weight from initial memories is selected and deduplication processing on the at least one physical block of the target memory is performed.

Abstract: Systems and methods can implement one or more intelligent caching algorithms that reduce wear on the SSD and/or to improve caching performance. Such algorithms can improve storage utilization and I/O efficiency by taking into account the write-wearing limitations of the SSD. Accordingly, the systems and methods can cache to the SSD while avoiding writing too frequently to the SSD to increase or attempt to increase the lifespan of the SSD. The systems and methods may, for instance, write data to the SSD once that data has been read from the hard disk or memory multiple times to avoid or attempt to avoid writing data that has been read only once. The systems and methods may also write large chunks of data to the SSD at once instead of a single unit of data at a time. Further, the systems and methods can write to the SSD in a circular fashion.

Abstract: A first storage device receives a first reservation preemption command from a host using a target port. The first reservation preemption command includes a port identifier of the target port, a to-be-checked reservation key, and a logical unit number (LUN). The first storage device encapsulates the to-be-checked reservation key, the LUN, the port identifier of the target port, and a port identifier of the forwarding port to obtain a second reservation preemption command. Further, the first storage device sends the second reservation preemption command to a second storage device using the forwarding port. The second storage device performs a reservation preemption operation based on the port identifier of the target port. When a split brain occurs in a host cluster, data consistency of different storage arrays can be ensured without relying on a Fiber Channel switch, thereby ensuring applicability in more scenarios.

Abstract: A method for mapping storage system resources is provided. The method includes receiving identification information from a plurality of storage system resources of at least one data center, and receiving performance information from the plurality of storage system resources. The method includes generating a physical or virtual mapping, in one or more dimensions, of locations of each of the plurality of storage system resources, relative to the at least one data center, and representing the identification information and the performance information in the physical or virtual mapping of each of the plurality of storage system resources.

Abstract: A system and method for reducing performance penalties of a host that is supplying a host memory buffer (HMB) for use by a storage device. The method may include modeling desired HMB access timing by the storage device in an initial offline analysis for multiple classes of workloads, periodically updating the access timing data stored in the storage device based on actual use and using the current HMB access timing information to modify storage device access to the HMB on the host. The system may include a storage device controller that quantifies different HMB access timing for different host workloads based on individual HMB regions.

Abstract: A system that implements a scalable data storage service may maintain tables in a data store on behalf of storage service clients. The service may maintain table data in multiple replicas of partitions that are stored on respective computing nodes in the system. In response to detecting an anomaly in the system, detecting a change in data volume on a partition or service request traffic directed to a partition, or receiving a service request from a client to split a partition, the data storage service may create additional copies of a partition replica using a physical copy mechanism. The data storage service may issue a split command defined in an API for the data store to divide the original and additional replicas into multiple replica groups, and to configure each replica group to maintain a respective portion of the table data that was stored in the partition before the split.

Abstract: Disclosed are methods, systems and computer program products for backing up user data from a social network account. An exemplary general method includes the steps of obtaining access to a user account on a social network, by a social network application; determining, by the social network application, one or more restrictions on external requests for data imposed by the social network; generating, by a backup agent in communication with the social network application, an algorithm for requesting data from the user account based upon the one or more restrictions on external requests for data; requesting user data from the user account, by the social network application, using the algorithm; receiving the user data from the user account, by the social network application; transmitting the received user data from the social network application to the backup agent; and archiving the received user data, by the backup agent.

Abstract: In a reliable distributed computing system, techniques where user actions or events affecting real system devices (RSD's), or causing the system to make changes to metadata, require fewer accesses to RSD's. When a virtual system device (VSD) is mounted, substantially all the metadata, or at least that associated with data recovery, is read into memory. Changes to that metadata can be made substantially without any metadata accesses to RSD's. No metadata accesses to RSD's are made for read operations, as the RSD would remain unchanged. Metadata is flushed from memory upon write operations. Metadata about data locations can be maintained in memory, so as to be available if any RSD becomes corrupted or otherwise comes to lose data.

Abstract: A synchronization of data is performed via remote copy operations from a primary storage controller to a secondary storage controller, wherein input/output (I/O) requests are received at the primary storage controller from a host both via a bus interface and a network interface while the remote copy operations are in progress. A first data structure stores identification of tracks written via the network interface that are to be copied from the primary storage controller to the secondary storage controller for the synchronization of data. A second data structure stores identification of tracks written via the bus interface that are to be copied from the primary storage controller to the secondary storage controller for the synchronization of data.

Abstract: Nonvolatile memory device includes a memory cell array and a control circuit. The memory cell array includes a plurality of memory blocks, the memory blocks including a plurality of memory cells coupled to word-lines respectively, the word-lines are stacked vertically on a substrate, and some memory cells of the plurality of memory cells are selected by sub-block unit smaller than one memory block. The control circuit divides sub-blocks of a first memory block into at least one bad sub-block and at least one normal sub-block based on error occurrence frequency of each of the sub-blocks, and applies different program/erase cycles to the at least one bad sub-block and the at least one normal sub-block based on a command and an address provided from external to the nonvolatile memory device. The at least one bad sub-block and the at least one normal sub-block are adjacent each other.

Abstract: A non-volatile memory device having a memory chip is provided. The memory chip having a memory cell array including a plurality of memory planes sharing a pad, the pad configured to communicate input and output signals. The memory chip also having a control circuit configured to monitor operations of the plurality of memory planes, and control an operation of at least one of the plurality of memory planes based on a result of the monitoring such that peak power intervals of the plurality of memory planes are at least partially distributed.

Abstract: A management method for a storage system is disclosed. The storage system comprises a plurality of hard disks, the management method comprises dividing the plurality of hard disks into a hot storage group, a warm storage group and a cold storage group according to a first threshold and a second threshold; exchanging a first warm storage hard disk conforming to the first threshold in the warm storage group with a hot storage hard disk in the hot storage group in response to not conform to the first threshold; and exchanging a cold storage hard disk conforming to the second threshold in the cold storage group with a second warm storage hard disk in the warm storage group in response to conform to the second threshold.

Abstract: A method and system for improving disk capacity reorganization is provided. The method includes monitoring a utilization level of a disk storage space of a disk drive and determining that the utilization level has exceeded a utilization level threshold. Reorganization and associated alert hardware and software functionality associated with modifying the utilization level are analyzed and a first alert indicating that the utilization level has exceeded the utilization level threshold is transmitted to an alert system. A second alert is transmitted to the alert system. The second alert indicates that the disk storage space is claimed by decreasing a size of an identified filesystem or paging space and assigned to an affected filesystem or paging space. Likewise, a third alert indicating a consolidated message associated with the increase and the decrease is transmitted to the alert system.

Abstract: A system for elastic volume type selection and optimization is provided. The system may detect that a block storage volume was provisioned by a public cloud computing platform based on a first volume type identifier of a first volume type. The system may determine, based on a normalization model, a baseline operation rate and a baseline throughput rate for the provisioned block storage volume. The system may determine, based on a selected transition mode and historical performance measurements, a simulated operation rate and a simulated throughput rate. The system may communicate, in response to the simulated throughput being greater than the baseline throughput rate or the simulated operation rate being greater than the baseline operation rate, a provisioning instruction to re-provision the provisioned block storage volume on the cloud computing platform.

Abstract: Embodiments of the present disclosure relate to a method, device and computer program product for storing data. The method comprises obtaining a first range of replica levels supported by a storage apparatus, wherein the replica level indicates the number of replicas of data. The method further comprises receiving a replica configuration requirement for an application, wherein the application supports a second range of replica levels. Moreover, the method further comprises determining a first replica level for the storage apparatus and a second replica level for the application based on the replica configuration requirement, the first range and the second range. By extracting the replica function supported by the storage apparatus, embodiments of the present disclosure can configure replica levels of the storage apparatus and the application from the global level for the user requirement for replicas of the data service.

Abstract: Memory devices, and methods of operating similar memory devices, include an array of memory cells comprising a plurality of access lines each configured for biasing control gates of a respective plurality of memory cells of the array of memory cells, wherein the respective plurality of memory cells for one access line of the plurality of access lines is mutually exclusive from the respective plurality of memory cells for each remaining access line of the plurality of access lines, and a controller having a plurality of selectively-enabled operating modes and configured to selectively operate the memory device using two or more concurrently enabled operating modes of the plurality of selectively-enabled operating modes for access of the array of memory cells, with each of the enabled operating modes of the two of more concurrently enabled operating modes utilizing an assigned respective portion of the array of memory cells.

Abstract: Some embodiments provide a method that configures a first pool of unit memories to implement several match entries, each including a set of match conditions. Each memory in the first pool includes at least one set of match entries. The method configures a second pool of unit memories to implement several action entries each located at a location in a memory. Each unit memory in the second pool has a different memory page address. The method assigns each set of match entries a virtual memory page address that corresponds to a different memory in the second pool. When the set of match conditions are met for a particular match entry at a particular location in a particular virtual memory page address, a particular action entry is read, having a same location in a memory with a same virtual memory page address in the second pool.

Abstract: A memory system may include: a memory device including a plurality of dies, each including a plurality planes, each including a plurality of blocks; and a controller suitable for grouping the plurality of memory blocks into a plurality of super blocks, each of which has a designated type corresponding to a condition, the controller may form a set of first super blocks, among the plurality of super blocks, each of which has at least one bad memory block and good memory blocks, and may manage the first super blocks.

Abstract: Technologies for encrypted data access by field-programmable gate array (FPGA) user kernels include a computing device having an FPGA and an external memory device accessible by the FPGA. The FPGA includes a secure key store, a micro-encryption engine, and multiple slots for user kernels that are each identifiable with an index. A user kernel is programmed at an index and a symmetric encryption key is provisioned to the secure key store at the index. The micro encryption engine may read encrypted data from the external memory device, decrypt the encrypted data with the key associated with the index of the user kernel, and forward plain text data to the user kernel. The micro encryption engine may also receive plain text data from the user kernel, encrypt the plain text data with the key, and write the encrypted data to the external memory device. Other embodiments are described and claimed.

Abstract: A leader replica of a replica host group of a distributed storage service is configured to replicate the leader replica and its associated one or more secondary replicas to create a duplicate host group comprising a duplicate leader replica and one or more duplicate secondary replicas. The leader replica may appoint the duplicate leader replica or another host as the leader of the duplicate host group. The leader replica may assign a subset of database keys to be served by the duplicate host group and forward data requests directed a key of the subset of keys assigned to the duplicate host group. The leader replica may further update a global key table of the distributed data storage system to direct data requests associated with the subset of database keys to the duplicate leader replica.

Abstract: An apparatus and method are provided for transferring data between address ranges in memory. The apparatus comprises a data transfer controller, that is responsive to a data transfer request received by the apparatus from a processing element, to perform a transfer operation to transfer data from at least one source address range in memory to at least one destination address range in the memory. A redirect controller is then arranged, whilst the transfer operation is being performed, to intercept an access request that specifies a target address within a target address range, and to perform a memory redirection operation so as to cause the access request to be processed without awaiting completion of the transfer operation.

Abstract: A storage control device includes a processor configured to receive access information indicating a start position and an end position of an access area in a first volume. The processor is configured to determine, based on one or more pieces of the received access information, whether a number of blocks in a cache area is reduced as a whole by changing a position of data in the first volume. The blocks are used in response to an access to the access area and correspond to one or more unit areas in the first volume. The one or more unit areas include the access area. The processor is configured to change the position of the data in the first volume upon determining that the number of the blocks in the cache area is reduced as a whole by changing the position of the data in the first volume.

Abstract: A method includes identifying, by a processing entity of a computing device, data units to read from non-volatile memory and to write into ordered buffers of volatile memory. The method further includes generating, by the processing entity, read operations regarding the data units, wherein the number of read operations equals “n”. The method further includes tagging, by the processing entity, each read operation of the read operations with a unique ordered tag value. The method further includes receiving, by the processing entity, read responses to the read operations from the non-volatile memory. The method further includes writing, by the processing entity, data units contained in the read responses into the ordered buffers in accordance with the ordered tag values. The method further includes tracking, by the processing entity, consumption of the data units from the ordered buffers.

Abstract: Methods and apparatus are provided for protection of state information for an auxiliary storage service in a microservice architecture. An exemplary method comprises generating a snapshot of state information of an auxiliary storage service on a given storage node in a storage cluster comprised of a plurality of storage nodes; and providing the snapshot to M protector storage nodes within the plurality of storage nodes in the storage cluster, wherein the M protector storage nodes comprises a snapshot manager node and M?1 additional protector storage nodes, and wherein the M protector storage nodes are selected based on a hierarchical ranking of available storage nodes within the storage cluster arranged in a predefined configuration relative to the given storage node. The predefined configuration of the plurality of storage nodes can be, for example, a protection ring comprising a first M?1 online storage nodes that follow the snapshot manager node in the protection ring in a predefined direction.

Abstract: An aspect of the present disclosure provides for managing content items in a storage system. In an embodiment, a trash command is received from a user, where the trash command specifies an expression of a set of attribute conditions connected by logical operators. A set of content items having attributes matching said expression are selected, where the set of content items are stored in corresponding logical locations on the storage system prior to receiving the trash command. The selected set of content items are moved from respective logical locations on the storage system to a set of trash folders, wherein selecting and moving the set of content items are performed in response to receiving the trash command specifying the expression.

Abstract: The present invention provides a flash memory controller including an artificial intelligence (AI) module and a microprocessor. In the operations of the flash memory controller, the AI module receives data from a host device, and determines if the data is important data or unimportant data to generate a determination result. The microprocessor is configured to write the data into a flash memory module according to the determination result, wherein the flash memory module comprises a plurality of first blocks and a plurality of second blocks, and quantity of bits stored in each memory cell within the first blocks is lower than quantity of bits stored in each memory cell within the second blocks. When the determination result indicates that the data is the important data, the microprocessor only stores the data into at least one of the first blocks.

Abstract: In an example method, write commands for a solid-state storage medium having storage region are received. Selected write commands are filtered out according to criteria. The selected write commands are cached. Writing pursuant to the selected write commands is aggregated to within boundaries of one of the storage regions of the storage medium.

Abstract: In one non-limiting embodiment, a method is disclosed for performing a storage device operation on a die is provide having steps of choosing a storage device operation to perform, estimating which die is related to the storage device operation chosen to be performed and performing the storage device operation at the die based on the estimating.

Abstract: A storage management apparatus includes a processor and a memory. The processor is configured to: identify a type of a storage apparatus based on a result of reception of a state information on the storage apparatus; execute first processing to receive, when the identified type is a first storage apparatus, first performance information on the first storage apparatus from the first storage apparatus, and store the first performance information in a database as data of a table coordinating the first performance information for each time period of reception; execute second processing to receive, when the identified type is a second storage apparatus, second performance information on the second storage apparatus from the second storage apparatus, and store the second performance information in the memory as data of a text-format file; and switch an execution between the first processing and the second processing depending on the identified type.

Abstract: A virtual disk processing method and apparatus belong to the field of storage technologies, where the method includes receiving delete information from a client system of a first virtual machine, determining, according to the delete information, at least one data cluster in a first virtual disk corresponding to a designated file, where the first virtual disk is a virtual disk corresponding to the first virtual machine, setting the at least one data cluster to be available, determining, according to a storage mapping table, a target physical disk block corresponding to the at least one data cluster, where a correspondence between a data cluster in the first virtual disk and a physical disk block is recorded in the storage mapping table, and setting the target physical disk block to be available.

Abstract: One or more techniques and/or systems are provided for cluster configuration information replication, managing cluster-wide service agents, and/or for cluster-wide outage detection. In an example of cluster configuration information replication, a replication workflow corresponding to a storage operation implemented for a storage object (e.g., renaming of a volume) of a first cluster may be transferred to a second storage cluster for selectively implementation. In an example of managing cluster-wide service agents, cluster-wide service agents are deployed to nodes of a cluster storage environment, where a master agent actively processes cluster service calls and standby agents passively wait for reassignment as a failover master in the event the master agent fails. In an example of cluster-wide outage detection, a cluster-wide outage may be determined for a cluster storage environment based upon a number of inaccessible nodes satisfying a cluster outage detection metric.

Abstract: Technology is disclosed that provides security for data stored in a non-volatile memory device. The non-volatile memory device may be embedded in a host system. The host system may further have a host controller that is configured to obtain a memory access message from an initiator to access the non-volatile memory. The host controller may be further configured to provide the memory access message to the memory controller. The memory access message may contain an identifier of the initiator, which may be verified by the host controller. The memory controller may be configured to access the identifier of the initiator from the memory access message, and grant or deny non-volatile memory access to the initiator based on whether the initiator has access rights to a region of the non-volatile memory to which the initiator seeks access.

Abstract: A storage device includes a non-volatile semiconductor memory device including a plurality of physical blocks, and a controller configured to associate one of the physical blocks with a stream ID, receive a first command including the stream ID, and in response thereto, transmit information on capacity of unwritten space in the physical block associated with the stream ID.

Abstract: An information processing apparatus capable of performing a software program including a first program layer with an instruction set to be interpreted and performed by a processor and a second program layer with an instruction set compiled in advance by a unit other than the processor comprises a unit configured to transmit parameter information used for image processing from the first program layer to the second program layer, a unit configured to perform the image processing in the second program layer according to the parameter information, a display control unit configured to display an indicator for allowing a user to recognize that the image processing is in progress, and a unit configured to issue an instruction to control display of the indicator from the second program layer to the first program layer, the display control unit controls the display according to the instruction.

Abstract: An image forming apparatus which implements a plurality of functions includes: storage with a prescribed storage area; an operating system which implements at least some of the functions by allocating a part of the prescribed storage area for a plurality of processes and executing the processes; and a storage area managing section which predicts an amount of consumed memory in response to generation of a job and determines whether or not the amount of consumed memory is allocable to the job in the prescribed storage area. The job is a processing target for the image forming apparatus. The amount of consumed memory is used for processing the job by the image forming apparatus. When determining that the amount of consumed memory is not allocable, the storage area managing section ends at least one process which is not used to process the job to make the amount of predicted memory allocable.

Abstract: A terminal device includes a controller configured to: transmit, to a device management server, an account information item having been registered in the device management server; receive, from the device management server, a target identification information item being for identifying a target device having been provisionally registered in association with the account information item, being unique identification information and being different from an IP address of the target device, and being assigned to the target device in advance before the target device is connected to a LAN where the terminal device is connected; specify the target device identified by the target identification information item from one or more devices connected to the LAN; and execute a formal registration process for formally registering the specified target device associated with the account information item in the device management server.

Abstract: An information processing device includes a controller that controls a notification of a linkage function which is executable by using at least one object to be linked when a user transmits information of the object to be linked to a conversation partner on an interface for making a conversation with the conversation partner.

Abstract: An image forming apparatus having a verification function of verifying a predetermined program includes a controller configured to execute the verified predetermined program, a predetermined unit, and a power supply configured to supply power to the controller and the predetermined unit, wherein the power supply is configured to start supplying power to the predetermined unit before the verifying of the predetermined program is completed, and if the predetermined program is confirmed not to be authentic by the verifying, stop supplying power to the predetermined unit.

Abstract: According to an embodiment, management device includes an image formation data management unit and an inspection unit. The image formation data management unit is configured to create a formation order indicating an order of forming an image corresponding to image formation data on a medium to be applied to an application target object. The inspection unit is configured to inspect whether the image formation data in accordance with the formation order matches with a read image obtained by reading the image formed on the medium in accordance with the formation order. The image formation data management unit transmits state information in which the formation order is associated with an image formation state based on at least one of an image formation result of the image formation data and an inspection result obtained by the inspection unit.

Abstract: A control unit of the invention compares printing setting suitable for a determined type of a recording material and printing setting of the recording material input by a user, and in a case where a difference between the printing setting suitable for the determined type of the recording material and the printing setting of the recording material input by the user falls in a predetermined range, the control unit performs a printing operation in accordance with the printing setting of the recording material input by the user, and in a case where the difference is greater than the predetermined range, the control unit performs the printing operation by changing the printing setting of the recording material input by the user, which is used when the difference is smaller than the predetermined range.

Abstract: A non-transitory recording medium storing a computer readable program causes a computer to perform: a) detecting a change from a first area to a second area according to a change in a usage area of a setting control device; b), in a case where the change in the usage area is detected in a), determining whether to change a setting value of each of a plurality of setting items; and c) performing control for the setting values of the plurality of setting items, wherein, in c), a setting value of a change target item, which is a setting item whose setting value is determined to be changed is changed to a value corresponding to the second area, and a setting value of a non-change target item which is a setting item other than the change target item is maintained as a value before the usage area is changed.

Abstract: A job processing apparatus that is capable of positively stopping a transmission job desired by a user. A transmission job is input according to a user's operation. Uncompleted transmission jobs out of input transmission jobs are managed by a job management table. A first stop instruction for stopping a transmission job is received according to a user's operation. In a case where the first stop instruction is received during display of a configuration screen for making settings of a transmission job, a transmission job input last out of the transmission jobs managed by the job management table is searched for, and the searched-for transmission job is stopped.

Abstract: Systems, methods, and devices are configured to manage the printing of an electronic document having different page sizes. They include receiving a request from a user to print an electronic document, the electronic document arranged as a set of pages. They also include determining if a page size for a page of the set of pages in the electronic document matches at least one print media size available for printing. They further include providing a message for display to the user, the message including an indication that the page size for the page is not available for printing when it is determined that the page size of the page does not match the at least one print media size. The message also including a menu with a set of user selectable options for completing the print request on the printing device.

Abstract: A method of controlling at least one controlled device at an external device outside a network including a control device and the controlled device is provided. The method includes transmitting a message accepting a control request requesting to control the controlled device in a session established with the control device; receiving and displaying an identifier for identifying the controlled device; and selectively controlling the controlled device via the control device based on an input generated using the displayed identifier.

Abstract: A visual output assembly for an aircraft cabin includes at least one electronic display device, a projection screen, an image projector configured to project images onto the projection screen, and at least one illumination device.

Abstract: Aspects of the subject disclosure may include, for example, receiving first user input from a first user interface screen and second user input from a second user interface screen, wherein the first user interface screen is disposed at a first location on a support structure and the second user interface screen is disposed at a second location on the support structure; presenting a first series of images, wherein the first series of images is presented responsive to first user input, and wherein the first series of images is presented as a first projection in a first volume of space; and presenting a second series of images, wherein the second series of images is presented responsive to second user input, wherein the second series of images is presented as a second projection in a second volume of space. Other embodiments are disclosed.

Abstract: A display device is disclosed. The display device may comprise: a memory for storing a content; a display panel for outputting at least a part of the content; multiple contact points arranged on a side surface of the display device; and a control circuit electrically connected to the memory, the display panel, and the multiple contact points.