Abstract: The present invention disclosed an operation data accessing device comprising a non-internet protocol connection module, a storage module, and a processing module. The operation data accessing device communicates with the operation data storage device through the non-internet protocol connection module. A first logical disk and a second logical disk are established in the operation data storage device. The first logical disk stores the operation data, the second logical disk stores the mapping operation data, and the mapping operation data corresponds to the operation data of the first logical disk. The storage module stores a set of program code. The processing module calls the program code stored in the storage module and performs the operations of establishing a link logical disk that establishes a data link channel for capturing the mapping operation data when the processing module detects that the non-internet protocol connection module is enabled.

Abstract: Methods, systems, and devices for read threshold adjustment techniques for error recovery are described. A memory system may read a codeword from a memory array using one or more read thresholds. The memory system may increment one or more counters of the memory device based on reading the codeword. The one or more counters may indicate information related to how many bits of the codeword correspond to a particular logic value. The memory system may detect an error, such as an uncorrectable error, in the codeword based on reading the codeword. The memory system may adjust the one or more read thresholds based on the information indicated by the one or more counters and read the codeword using the adjusted read thresholds.

Abstract: One embodiment provides a system which facilitates data movement. The system allocates, in a volatile memory of a first storage drive, a first region to be accessed directly by a second storage drive or a first NIC. The first storage drive, the second storage drive, and the first NIC are associated with a first server. The system stores data in the first region. Responsive to receiving a first request from the second storage drive to read the data, the system transmits, by the first storage drive to the second storage drive, the data stored in the first region while bypassing a system memory of the first server. Responsive to receiving, from a third storage drive associated with a second server, a second request to read the data, the system retrieves, by the first NIC, the data stored in the first region while bypassing the system memory of the first server.

Abstract: An information processing apparatus coupled to a storage device via a network includes a processor configured to: acquire a host physical address over a physical storage region in which information regarding an access to the storage device from a guest OS is stored from a first packet stored in the physical storage region storing a packet obtained by encapsulating the information regarding the access; convert the acquired host physical address into a guest physical address recognized by the guest OS; create a data structure of a block device; store the guest physical address in a data address region of the data structure; specify the host physical address corresponding to the guest physical address while referring to the memory when reading from the data address region is detected; read data from the specified host physical address over the physical storage region; and transfer the read data to the guest OS.

Abstract: A storage device includes a memory device including a plurality of memory areas respectively corresponding to a plurality of address groups each of which includes consecutive logical addresses provided by a host, a buffer memory including a common buffer and a plurality of zone buffers, the plurality of zone buffers respectively corresponding to the plurality of memory areas, and a memory controller for controlling the buffer memory to temporarily store write data corresponding to a logical address provided from the host in one of a zone buffer corresponding to the logical address and the common buffer according to whether a first size of the write data exceeds an available storage capacity of the zone buffer, the available storage capacity representing a size of an empty storage space of the zone buffer in which no data is stored.

Abstract: A vehicle data recording device includes a non-volatile memory, a counting unit, a writing unit, a counter determination unit, a switching unit, an event determination unit, and a recording unit. A storage area of the non-volatile memory is divided into blocks. The counting unit is configured to count a number of writes to each of the blocks. The writing unit is configured to write the data to a target block. The counter determination unit is configured to determine whether the number of writes reached a predetermined number. When the counter determination unit determines that the number of writes reached the predetermined number, the switching unit excludes the target block from the writing target, sets the target block as a non-target block. The recording unit is configured to record recording data by writing the recording data to the non-target block when the event occurred.

Abstract: An apparatus includes processing cores, memory blocks, a connection between each of processing core and memory block, chip selection circuit, and chip selection circuit busses between the chip selection circuit and each of the memory blocks. Each memory block includes a data port and a memory check port. The chip selection circuit is configured to enable writing data from a highest priority core through respective data ports of the memory blocks. The chip selection circuit is further configured to enable writing data from other cores through respective memory check ports of the memory blocks.

Abstract: Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for managing a storage system. The method includes: if it is determined based on current values of a plurality of attribute parameters of a storage device in a storage system that the storage device will have a fault, determining whether the fault of the storage device will not occur again based on reference values of attribute parameters in a first set in the plurality of attribute parameters and current values of attribute parameters in a second set in the plurality of attribute parameters. The method further includes: if it is determined that the fault of the storage device will not occur again, determining a cause of the fault based on the attribute parameters in the first set. The embodiments of the present disclosure can analyze a cause of a fault of a storage device, thereby avoiding the misjudgment of a storage device having no internal fault as a storage device having an internal fault.

Abstract: A data reading method, apparatus, and system, and a distributed system, related to the field of storage technologies and can be applied to data reading. The method includes: receiving a data read request sent by a terminal, where the data read request includes a logical address of target data; locally searching, based on the logical address, a first slave node for a latest version of the target data; and, when it is determined that the latest version of the target data has been stored in each of a plurality of slave nodes, sending the latest version of the target data to the terminal. This data reading method, apparatus, system, and distributed system can avoid a rollback of a version of read data.

Abstract: The present disclosure describes aspects of health management for magnetic storage media. In some aspects, a media health manager determines, with a read channel, read metrics for a sector of magnetic storage media that resides in a zone of magnetic storage media. The media health manager accesses read metrics of the zone and updates the read metrics of the zone based on the read metrics determined for the sector to provide updated read metrics for the zone of magnetic storage media. A health score for the zone of magnetic storage media is then determined with a neural network based on the updated read metrics of the zone of magnetic storage media. By so doing, gradual wear of the magnetic storage media may be predicted using the health score, enabling replacement of a magnetic storage media device before failure to improve reliability or availability of data stored to the device.

Abstract: A remove operation and an add-to-front operation may be currently performed with respect to nodes in an Least Recently Used (LRU) queue. A remove operation for a node may proceed if a lock can be obtained on the node to be removed and a predecessor node. During the remove operation, an add-to-front operation may proceed if a lock can be obtained on a dummy node that precedes the current front node of the LRU queue.

Abstract: A memory management method, a memory storage device, and a memory control circuit unit are provided. The memory management method includes: storing first management information in a rewritable non-volatile memory module, wherein the first management information reflects a storage status of abnormal data in a first physical unit in the rewritable non-volatile memory module; receiving a read command from a host system, wherein the read command instructs to read data stored in a logical unit corresponding to a physical node in the first physical unit; inquiring the first management information according to the read command; transmitting data read from the physical node to the host system if an inquiring result reflects that the abnormal data is not stored in the physical node; and transmitting error information to the host system if the inquiring result reflects that the abnormal data is stored in the physical node.

Abstract: In a multi controller storage system, hardware and software are updated without interruption. The storage system including a node has storage control units each including a processor, a memory, and a port; and a storage drive, and the storage control units each request data access and transmit and receive data with respect to a host computer via the ports. The processors process input and output data from the host computer, the memories store the control information in order to access the data stored in the storage drive, and the storage system transmits the control information stored in the memories to another node, stores the control information in the memories of the storage control units, and sets ports of the other node in consideration of a relationship between the storage control units and the ports of the nodes, if the other node can access data relating to the control information.

Abstract: Systems, apparatuses, and methods for performing efficient memory accesses for a computing system are disclosed. In various embodiments, a computing system includes a computing resource and a memory controller coupled to a memory device. The computing resource selectively generates a hint that includes a target address of a memory request generated by the processor. The hint is sent outside the primary communication fabric to the memory controller. The hint conditionally triggers a data access in the memory device. When no page in a bank targeted by the hint is open, the memory controller processes the hint by opening a target page of the hint without retrieving data. The memory controller drops the hint if there are other pending requests that target the same page or the target page is already open.

Abstract: A method for execution by a rebuilding module includes detecting that less than a pillar width number of encoded data slices of a common revision are retrievable from a set of storage units. A decode threshold number of encoded data slices are retrieved and decoded to reproduce a data segment. The data segment is encoded to produce at least one encoded data slice and storage of the at least one encoded data slice in the set of storage units is facilitated in accordance with the common revision when determining to rebuild the at least one encoded data slice. The data segment is encoded to reproduce the set of encoded data slices and storage of the reproduced set of encoded data slices is facilitated in the set of storage units in accordance with a new revision when determining to not rebuild the at least one encoded data slice.

Abstract: A method comprising: receiving, by a first storage node, an instruction to designate a first device file as the first storage node's primary device file for accessing a storage device designating, by the first storage node, the first device file as the first storage node's primary device file for accessing the storage device, the first device file being designated as the first storage node's primary device file for accessing the storage device in response to the first instruction; receiving, at the first storage node, an I/O command that is associated with the storage device; making a first attempt to complete the I/O command by using the first device file, detecting, by the first storage node, an error that is generated in response to the first attempt; designating, by the first storage node, a second device file as the first storage node's primary device file for accessing the storage device.

Abstract: Data from a host system is received at a memory device, where the memory device includes a primary region to initially store the data received from the host system and one or more secondary regions to store data transferred from the primary region. A write operation is performed on one or more write units of the primary region with the data received from the host system, where a write unit of the primary region has lower density blocks than a write unit of the secondary region. Whether a subset of write units of the primary region corresponding to a pre-determined number of write units is written with at least a portion of the data received from the host system is determined. In response to determining that the subset of write units of the primary region is written, another write operation is performed on at least one write units of the secondary region with respective data of the subset of write units of the primary region.

Abstract: A system for archiving data objects using secondary copies is disclosed. The system creates one or more secondary copies of primary data that contains multiple data objects. The system may maintain a first data structure that tracks the data objects for which the system has created secondary copies and the locations of the secondary copies. To archive data objects in the primary data, the system identifies data objects to be archived, verifies that previously-created secondary copies of the identified data objects exist, and replaces the identified data objects with stubs. The system may maintain a second data structure that both tracks the stubs and refers to the first data structure, thereby creating an association between the stubs and the locations of the secondary copies.

Abstract: In one example, a method includes: receiving a ready-to-split instruction for the to-be-split fragment; sending the ready-to-split instruction to slave servers, so that each of the slave servers obtains data splitting points of the to-be-split fragment, and sends the data splitting points to the master server; when the number of received data splitting points exceeds a first threshold number, sending data splitting points to the control node, so that the control node sends a splitting-storage instruction to the master server; sending the splitting-storage instruction to each of the slave servers, so that each of the slave servers performs splitting-storage on the to-be-split fragment according to the data splitting points, and sends a first message to the master server to indicate completion of the splitting-storage; when the number of received first messages exceeds a second threshold number, performing splitting-storage on the to-be-split fragment according to the data splitting points.

Abstract: A data processing system may include one or more first memory systems each comprising a first memory device, and suitable for generating analysis information by performing an AI (Artificial Intelligence) computation in order to analyze operation patterns for a plurality of accumulated commands transferred from a host and a plurality of accumulated addresses corresponding to the accumulated commands, and one or more second memory systems each comprising a second memory device having a lower operating speed than the first memory device, and suitable for selectively blocking access to the second memory device in response to the analysis information.