1016 results about "Solid-state drive" patented technology

The invention relates to the technical field of solid state disks, and discloses a load collaborative scheduling method and system for a solid state disk, and the method comprises the steps: carrying out the data collection of a main controller of the solid state disk, and obtaining the original feature data; a Kolmogorov-Arnold neural network is input to carry out nonlinear feature transformation and linear combination operation, and a load prediction result is obtained; performing hierarchical processing to obtain a hierarchical scheduling model; constructing a multi-objective optimization function and carrying out constraint setting to obtain a constraint optimization equation set; performing convex difference function decomposition and augmented Lagrange function construction on the constraint optimization equation set, and solving through an alternating direction iteration method to obtain a scheduling decision scheme; according to the scheduling decision scheme, load balancing control is carried out on data write-in physical address allocation, data read cache scheduling and multi-channel parallel transmission, a real-time performance monitoring index is obtained, and the method realizes load collaborative scheduling of the solid state disk.

The invention discloses a solid state disk testing method and system, a storage medium and a program product, and relates to the field of computer storage testing, and the method comprises the following steps: dividing a storage space of a solid state disk to be tested into a plurality of physical areas; determining the number of read-write tests of the to-be-tested solid state disk within a preset duration at a preset temperature; performing read-write test operation on the plurality of physical areas in sequence within a preset duration to obtain read-write error rates respectively corresponding to the plurality of physical areas, the number of read-write times of the read-write test operation being the number of read-write test times; if the read-write error rates corresponding to the physical areas exceeding the preset number are higher than a preset error rate threshold value, determining that the to-be-tested solid state disk is unqualified; and if the read-write error rates corresponding to the physical areas lower than the preset number are lower than a preset error rate threshold, determining that the to-be-tested solid state disk is qualified. By implementing the method, the specific problem area in the solid state disk can be positioned and diagnosed more accurately, so that the quality evaluation standard and the maintenance efficiency of the whole solid state disk are improved.

The invention provides a solid state disk testing method and device, equipment and a medium, and relates to the technical field of hard disk detection. The test method comprises the following steps: in a process of writing data into physical areas of a to-be-tested solid state disk according to a physical address in sequence, randomly selecting at least part of areas from the physical areas written with the data at a preset time interval to perform reset operation until the physical areas reach a target area state, the target area state comprises a target filling state and a target fragmentation state; executing a read-write test on the physical region in the target region state to obtain test data; and generating a test report based on the test data.

The invention discloses a data storage method based on a solid state disk and a storage medium, relates to the technical field of solid state disks, and solves the problem that the storage rate cannot reach the optimal state due to the fact that the storage process and historical data of data are not analyzed. According to the method, different classified data are confirmed, the optimal utilization rate and the related storage rate are identified from the historical data of the different classified data, and the classified data are uniformly distributed and stored based on the corresponding utilization rate in the subsequent storage process, so that the specific storage rate and the overall storage effect of the corresponding classified data are guaranteed. By analyzing the storage rate associated with the related storage process, whether the storage rate is reduced or not is identified, and if the storage rate is reduced, utilization rate allocation is performed from other storage paths to guarantee the overall storage rate of the corresponding storage process, so that the corresponding storage rate is further improved.

The invention relates to the technical field of solid state disk security protection, in particular to a security protection detection method and system for a solid state disk, and the method comprises the following steps: obtaining a historical security monitoring log of the solid state disk, carrying out normalized fluctuation rule mining and reference behavior evolution, and constructing a normalized reference behavior model; identifying real-time access behavior data of the solid state disk; analyzing access modes of behavior storage units one by one according to the real-time access behavior data, and identifying real-time access behavior characteristics to generate real-time access behavior characteristics; and performing reference access deviation detection on the real-time access behavior characteristics according to the normalized reference behavior model, tracing an access position, and positioning a malicious access storage unit. Through a multi-layer and all-around intelligent protection system, the overall safety and stability of the solid state disk are improved.

A method of data storage based on a redundant array of independent disks (RAID), where the RAID includes a plurality of solid state drives (SSD), each SSD including a persistent memory region (PMR) and a NAND, includes writing first data into the NAND, and writing first check data into the PMR. The first check data is check data related to the first data.

The invention discloses a solid state disk space active recovery method, device and equipment and a readable storage medium. The solid state disk space active recovery method comprises the steps that the capacity of to-be-written data is obtained, and the logic available capacity and logic effective data capacity of a solid state disk and data storage statistics of all storage units are obtained; calculating the actual available capacity of the solid state disk according to the data storage statistics of each storage unit; according to the to-be-written data capacity and the actual available capacity, the capacity needing to be recycled is obtained through calculation; and according to the to-be-recycled capacity, the data storage statistics of each storage unit and the read-write bandwidth, calculating to obtain the to-be-recycled duration. According to the method, through a space active recovery mechanism for controlling the solid state disk based on the host, proper space recovery can be performed in advance according to the capacity of the to-be-written data when the host has the requirement of writing the data into the solid state disk at a high speed, so that the space and performance of the host during subsequent high-speed data writing into the solid state disk can be ensured.

A controller, of a solid state drive (SSD), may perform, on one or more blocks of a non-volatile memory device of the SSD, read operations using pre-determined threshold voltages associated with two overlapped charge states. The read operations may be performed after a power-on condition following a power-off condition on the non-volatile memory device. The controller may determine, using a machine learning model, a change in threshold voltages associated with the two overlapped charge states, after the power-off condition. The machine learning model may determine the change in threshold voltages using bit error rates associated with the read operations. The machine learning model may be trained to determine changes in threshold voltages for the two overlapped charge states, after power-off conditions. The controller may determine adjusted threshold voltages associated with the two overlapped charge states based on the change in threshold voltages.

A system can include a host computer system and a host system bus coupled to the host computer system. One or more storage devices can be coupled to the host system bus and configured to store data. Additionally, a computational storage device (CSD) can be coupled to the host system bus and configured to receive a data write request comprising data from the host computer system. The CSD can further include a memory and an application processor. The application processor of the CSD can be configured to write the data of the data write request to the one or more storage devices in response to receiving the data write request.

A storage device includes a substrate, at least one data storage element, a case, and at least one sensing pin. The substrate includes at least one security pad. The data storage element is mounted on the substrate. The case surrounds the substrate and the data storage element, and includes at least one contact structure for an electrical connection with the security pad. The sensing pin receives an electrical signal. A level of the electrical signal varies by detecting a change in a resistance according to whether the security pad is electrically connected to the contact structure. When at least a part of the case is removed, a level change of the electrical signal is detected, and a secure erase process for data stored in the data storage element is performed.

The invention relates to the technical field of data storage, and discloses a disk refreshing method and device based on a nonvolatile memory, equipment and a medium. Write-in threads are grouped according to the core number of a central processing unit to obtain a plurality of thread groups; and writing data corresponding to each target write-in thread in the target thread group into the target disk brushing buffer area, and suspending the target thread group. And when the target disk refreshing buffer receives data sent by all the corresponding target write-in threads, synchronously writing the data in the target disk refreshing buffer into the solid state disk, and releasing the target thread group. By dividing the thread groups and distributing a disk refreshing buffer area for each thread group, a message storage mode of sequential writing and random reading can be realized, and the capacity limitation of the current file storage scheme is solved. When disk refreshing is executed, the data corresponding to the multiple write-in threads in one thread group are synchronously aggregated for disk refreshing, so that frequent switching between a user mode and a kernel mode is reduced, and the message write-in speed is increased.

An apparatus with a solid state drive (SSD) configured to manage storage resources for proof of space activities. The SSD has a host interface configured to receive at least read commands and write commands from an external host system. The SSD has memory cells formed on at least one integrated circuit die, and a processing device configured to control executions of the read commands and the write commands. In response to an indication of a storage space request for the host system, the apparatus identifies a portion of storage resources used to store the data of the proof of space plot, and reallocates the portion to service the host system. Subsequently, the SSD can continue proof of space activities based on the proof of space plot using the data stored in a remaining portion of the storage resources initially allocated to the proof of space plot.

An information processing apparatus includes: a solid state drive (SSD) configured with a multi-bit cell for storing multi-bit data in one memory cell and configured to include an electrically rewritable non-volatile storage unit; and a main control unit configured to execute processing based on data stored in the SSD. The SSD includes a storage control unit, which is a storage control unit configured to control access to the non-volatile storage unit, and configured to execute a storage process through which a variation width of a threshold voltage is changeable when the multi-bit data is stored in the multi-bit cell.

A data storage method and a computing device, the method is applied to a storage device, the storage device comprises a first storage pool and a second storage pool, the first storage pool comprises a first solid state disk and a mechanical hard disk, and the second storage pool comprises a shared storage area. The shared storage area is used for providing an extended storage space for the first storage pool; the method comprises the following steps: receiving a first data writing request; under the condition that the data volume of the first data is smaller than or equal to the available capacity of the first solid state disk of the first storage pool, writing the first data into the first solid state disk of the first storage pool; and when the data volume of the first data is greater than the available capacity of the first solid state disk of the first storage pool and is less than or equal to the available capacity of the shared storage area of the second storage pool, writing the first data into the shared storage area of the second solid state disk of the second storage pool.

The invention provides a hard disk activation method and authentication method, a solid state disk and a server, and the hard disk activation method comprises the steps: responding to an activation instruction sent by a user, and closing a debugging interface of the solid state disk; obtaining a random verification sequence randomly generated at the current moment, and calculating a random hash value of the random verification sequence; encrypting and packaging the serial number, the chip identifier, the random verification sequence and the random hash value of the solid state disk to obtain a first encrypted data packet; sending the first encrypted data packet to a server, so that the server verifies the solid state disk; and if a second encrypted data packet fed back by the server is received and a first verification result indicating that verification is qualified, a second verification result indicating that verification is qualified and the random verification sequence are obtained from the second encrypted data packet, triggering the solid state disk to execute an activation process so as to complete activation of the solid state disk. The hard disk activation method can improve the security level of hard disk activation.

A system for dynamic sequence alignment and causal analysis in business mining, consisting of a data acquisition unit configured to capture real-time event logs from multiple enterprise systems via communication interfaces, wherein the data acquisition unit includes a variety of communication interfaces, including Ethernet ports, fiber optic interfaces, and wireless transceivers, enabling data acquisition from both local and remote enterprise systems, and wherein the unit is capable of processing multiple data streams simultaneously via parallel data acquisition channels; a preprocessing unit configured to normalize and transform the captured event logs using signal processors and real-time data converters; a sequence alignment processing unit configured with a central processing unit (CPU), a graphics processing unit (GPU) and a field-programmable gate array (FPGA) to dynamically align sequences of business events using machine learning; a causal inference processing unit configured with multiple central processing units (CPUs) and neural network accelerators to analyze the aligned sequences and infer causal relationships between business events; a visualization unit configured to display the aligned sequences and results of the causal analysis on user interface devices; and a data storage unit configured with solid-state drives (SSDs) and a redundant array of independent disks (RAID) to store event logs, aligned sequences, and causal analysis data.

Methods and systems for solid state drives are provided, including assigning a first namespace to a first instance of a storage operating system and a second instance of the storage operating system for enabling read access to a first portion of a flash storage system by the first instance, and read and write access to the second instance; allocating a second namespace to the first instance for exclusive read and write access within a second portion of the flash storage system; generating, by the first instance, a request for the second instance to transfer a data object from the second portion owned by the first instance to the first portion; storing, by the second instance, the data object at the first portion; and updating metadata of the data object at the second portion, the metadata indicating a storage location at the second portion where the data object is stored.

The invention relates to the technical field of storage, and discloses a threshold voltage processing method of a solid state disk, a data reading method and related equipment. The threshold voltage processing method comprises the following steps: selecting a crystal grain in a frequent rereading state in a solid state disk as a target crystal grain; obtaining the optimal threshold voltage of the target crystal grain; and setting the optimal threshold voltage as the threshold voltage of all the blocks in the closed state in the target crystal grain. According to the method, the threshold voltage deviation problem of the solid state disk can be compensated, the read-write performance of the solid state disk under the scenes of data retention, read interference, cross temperature and the like is effectively stabilized, performance reduction and stability fluctuation caused by repeated rereading are reduced, the data reading efficiency is remarkably improved, the maintenance cost is reduced, and the service life of the solid state disk is prolonged. Reliability of the solid state disk is further improved, and service life of the disk is prolonged.

A data writing method and apparatus, a solid state drive, an electronic device, and a non-transitory readable storage medium are provided. The method includes: receiving a data writing request sent by a target object to acquire data to be written; preprocessing original data blocks in the data to be written to obtain a plurality of preprocessed data blocks of the data to be written; mirroring the plurality of preprocessed data blocks to a first partition of a target solid state drive; sending, according to a mirroring result, response information corresponding to the data to be written to the target object, where the response information includes writing state information; and writing the plurality of preprocessed data blocks to a second partition of the target solid state drive from the first partition.

A rack-mountable data storage system includes: a chassis including one or more switchboards; a midplane interfacing with the one or more switchboards; and one or more data storage devices removably coupled to the midplane using a connector. At least one data storage device of the one or more data storage devices include a logic device to interface with the midplane. The logic device provides a device-specific interface of a corresponding data storage device with the midplane. The at least one data storage device is configured using the logic device according to a first protocol based on a signal on a pin of the connector, and the at least one data storage device is reconfigurable according to a second protocol based on a change of the signal on the pin of the connector using the logic device.

The invention discloses a preheating system of a solid state disk, and relates to the technical field of storage, and the system comprises the solid state disk which is used for sending a first instruction to a power supply device when it is detected that the initial temperature value of each target area in at least one target area is smaller than or equal to the corresponding minimum working temperature value. And the power supply device is used for heating each target area according to a full-power heating mode. The solid state disk is also used for predicting a target temperature value of each target area after a preset time period; and when the difference between the target temperature value of each target area and the corresponding minimum working temperature value is smaller than the preset temperature difference value, a second instruction is sent to the power supply device. And the power supply device is used for heating each target area according to a pulse heating mode and stopping heating until the real-time temperature value of each target area is greater than the corresponding minimum working temperature value. The problems of high power consumption, high time delay, slow response and low working efficiency of the solid state disk caused by the low-temperature problem can be solved.

To allow attachment of electrolytic capacitors and other relatively large electrical circuit devices to a PCB while meeting size limitations, The PCB can include a full-through opening within which the device can be located. Along one edge of the opening, the PCB includes half-through cuts with a conductive lining extending from the opening, where the pins of the capacitor or other device can rest and form electrical connections. In addition to pins extending radially from one end of the capacitor or other device, the device includes a notch extending from the opposing end. Along the edge of the PCB opening opposing the half-through cuts for the pins, the PCB includes a half-though cut for the device's notch to rest, thereby providing mounting stability.

The utility model relates to the technical field of hard disk testing, and particularly discloses an SSD (Solid State Disk) testing rack which comprises a frame, the frame comprises a bottom plate, supporting rods, a top plate and a falling frame, the bottom plate and the top plate are fixedly connected through the two supporting rods, and the falling frame is fixedly installed on the upper surface of the bottom plate; through the arrangement of the frame, the lifting frame, the lifting mechanism and the rotating mechanism, the height and the inclination angle of the mounting plate can be controlled, the solid state disk can be conveniently released from different positions, and through the arrangement of the connecting shaft, the clamping plate, the horizontal gear, the connecting block, the sliding rod and the L-shaped toothed plate, the L-shaped toothed plate can drive the horizontal gear to rotate by pushing the sliding rod to move. The clamping plate can rotate to clamp the solid state disk, so that the clamping plate can rotate into the groove by moving the sliding rod, the purpose of loosening the solid state disk is achieved, the clamping mechanism is not prone to loosening and falling when clamping the solid state disk, and the falling test of the solid state disk cannot be hindered after the clamping mechanism is loosened.

An adaptive interface storage device. In some embodiments, the adaptive interface storage device includes: a rear storage interface connector; an adaptable circuit connected to the rear storage interface connector; a first multiplexer, connected to the adaptable circuit; and a front storage interface connector, connected to the first multiplexer. The adaptive interface storage device may be configured to operate in a first state or in a second state. The adaptive interface storage device may be configured: in the first state, to present a device side storage interface according to a first storage protocol at the front storage interface connector, and in the second state, to present a device side storage interface according to a second storage protocol, different from the first storage protocol, at the front storage interface connector.

The invention relates to the technical field of solid state disks, and discloses a solid state disk fault detection method and device, and the method comprises the steps: obtaining an information tree of a target solid state disk in a running process; the information tree takes the target solid state disk as a root node, takes a memory block of the target solid state disk as a father node of the root node, and takes attribute information of the memory block as a leaf node of the father node; determining a detection result of each memory block in the target solid state disk based on a first similarity between each memory block in the target solid state disk and a corresponding preset fault memory block; if the detection result of the target memory block is in a fault state, positioning fault root cause information of the target memory block based on a second similarity between each piece of attribute information in the target memory block and corresponding preset fault attribute information; the target memory block is any memory block of the target solid state disk. According to the method, the fault root cause of the solid state disk can be quickly positioned, and an accurate decision is made for the solid state disk.

A module identifier and a request address associated with an access request are received at a host memory buffer (HMB) access module in a solid-state drive (SSD) system. A translated address is determined based at least in part on the module identifier and the request address, including by accessing at least one translation table that stores address mappings between (1) a plurality of processors in the SSD system and (2) a host memory buffer; each processor in the plurality of processors has a non-overlapping memory space in the host memory buffer. The access request is performed at a host interface, including by accessing the host memory buffer using the translated address, wherein the host memory buffer is located in host memory that is external to the SSD system.

The present disclosure provides a method of operating a memory system, a memory controller, a memory system, and a storage medium, and relates to the technical field of semiconductor chips. The method includes: obtaining an erase count and a hot id of each virtual block, determining a first virtual block from which data is moved and a second virtual block into which the data is moved according to the erase count and the hot id of each virtual block, and moving data stored in the first virtual block to the second virtual block. The method of operating a memory system provided by the present disclosure is intended to improve the problem that the service life of a solid state drive is shorten due to the movement of newly-written data.

The invention provides an intelligent accelerated data reading method and system for a solid state disk, and the method comprises the steps: reading basic information of each data block in the solid state disk when a data reading request is received, and constructing an information fingerprint of each data block based on the basic information; constructing an information fingerprint of request data based on the data reading request, and eliminating unmatched data blocks by adopting a Bloom filter; performing similarity calculation on the information fingerprints of the request data and the information fingerprints of the excluded data blocks by using a locality sensitive hash algorithm, and positioning the data block most similar to the request data; and reading the request data from the solid state disk according to a positioning result. According to the method and the device, unmatched data blocks are eliminated by adopting a Bloom filter; similarity calculation is carried out on the information fingerprints of the request data and the information fingerprints of the excluded data blocks, the data block most similar to the request data is positioned, and the defects of long time consumption and system resource waste during current data reading are overcome.

Mechanisms for reducing the impact of drive parameter writes on solid state drive (SSD) performance are provided, the methods including: saving one or more SSD drive parameters of an SSD to volatile memory of the SSD using an SSD controller; detecting a power-loss condition in the SSD; and copying the one or more SSD drive parameters from the volatile memory of the SSD to non-volatile memory of the SSD. In some embodiments, the SSD is a NAND SSD. In some embodiments, the one or more SSD drive parameters include one or more of: a drive health parameter, a drive internal statistic, drive thermal information, drive debug information, a number of host and non-volatile memory read and writes, media error handling data, temperature and throttle information, and firmware download information. In some embodiments, the volatile memory is one or more of: random-access memory and dynamic random-access memory.

The invention relates to the technical field of solid state disks, in particular to a data management method and device for a solid state disk and related equipment. The method comprises the steps of determining whether the solid state disk is running a foreground garbage collection process or not in response to a condition that current wear data of the solid state disk meets a start condition of a wear leveling process; wherein the wear data indicates the wear difference degree of the storage area in the solid state disk; if the solid state disk is running the foreground garbage collection process, controlling the foreground garbage collection process and the wear leveling process to be executed in parallel at respective parallel execution speeds; wherein the parallel execution speed of the wear leveling process is smaller than that of the foreground garbage collection process; the sum of the parallel execution speeds of the wear leveling process and the foreground garbage collection process is equal to a preset limit execution speed. The technical problem that in the prior art, if the condition that wear leveling and foreground garbage collection are executed at the same time occurs, the overall performance of the SSD fluctuates can be solved.