1244 results about "Solid-state" patented technology

The invention belongs to the technical field of computer storage, and particularly relates to a solid state disk data management and efficient storage distribution method, which comprises a data characteristic sensing and classifying unit, a data characteristic sensing and classifying unit, a data processing unit, a data storage unit and a data distribution unit, wherein the data characteristic sensing and classifying unit is configured for analyzing write-in request data flow entering a solid state disk in real time or periodically, extracting various characteristic parameters associated with data blocks and storing the data blocks; classifying the data on the basis of the characteristic parameters, and distributing one or more data classification labels for each data block to be written or stored; and the self-adaptive storage allocation strategy unit is configured to be used for dynamically selecting an optimal physical block for data writing according to the data classification label and in combination with the physical block state information of the current flash memory medium. According to the invention, the solid state disk can better adapt to various dynamic and variable workloads, and especially shows more excellent continuous write-in performance, lower delay jitter and obviously prolonged service life when processing a large amount of random write-in, small block write-in and write amplification sensitive applications.

The invention relates to the technical field of data storage, and discloses a solid state disk total write-in data volume testing method, which comprises the following steps of: initializing a testing environment and self-adaptive parameter configuration of a solid state disk; creating a plurality of parallel data acquisition threads, acquiring test data through the data acquisition threads, and storing the acquired test data into a database; establishing a preset health degree evaluation model, analyzing the collected test data in real time according to a preset health degree index system, dynamically adjusting a test load based on a dynamic acceleration stress model and according to the real-time state of the solid state disk, executing a corresponding test operation according to an adjustment result, and recording a test result; and analyzing the test result, and automatically generating a test report according to the analysis result. According to the method, the dynamic acceleration stress model is introduced, so that the test load is dynamically adjusted according to the real-time state of the SSD, and the test efficiency and accuracy are improved.

The invention relates to the technical field of data storage optimization, and discloses a solid state disk wear leveling global optimization method and system based on multi-granularity data features. The solid state disk wear leveling global optimization method specifically comprises the following steps that S101, lightweight data feature monitoring points with blocks, units and chips as basic granularity are deployed in a solid state disk controller, and original multi-dimensional data features related to wear are continuously collected and quantified in real time, all collected multi-dimensional data features are converted into dimensionless feature scores which can be transversely compared through normalization processing. According to the method, multi-dimensional feature fusion and normalization processing of three-level granularity of blocks, units and chips of a fixed hard disk are utilized, a prediction model based on a time sequence is combined, a dynamic risk thermodynamic diagram covering the whole disk is generated, a system can accurately position current and future potential abrasion hot spots, and the system reliability is improved. And passive equalization operation is converted into active risk prevention.

The invention discloses a dormancy and awakening system and method of an enterprise-level solid state disk, and belongs to the technical field of power consumption management of the enterprise-level solid state disk. According to the system, a nonvolatile cache unit, an independent hardware state machine and an ultra-low power consumption wake-up detection circuit are integrated in a main controller. When entering the dormancy state, key data such as an FTL mapping table are stored in a nonvolatile cache, then the power management module cuts off power supply to the NAND flash memory and the main control core, and only the operation of the minimum circuit is maintained, so that the dormancy power consumption is reduced to be below 100mW; and during wakeup, the detection circuit identifies a physical layer signal to trigger rapid power-on, and the hardware state machine directly recovers the system state from the cache and bypasses the software initialization process, so that wakeup is completed and the NAND access capability is reconstructed within 1ms, and the industrial problem that ultra-low power consumption and rapid wakeup cannot be considered at the same time is effectively solved.

The invention relates to the field of computer security, and discloses a data storage security protection method and system based on a solid-state hard disk, which comprises the following steps: identifying the inherent physical difference of a flash memory chip in the solid-state hard disk so as to calculate the read-write time sequence micro-deviation of the solid-state hard disk; performing hash operation on the device root key and the unique identifier of the controller corresponding to the solid state disk to obtain a bound master control key; generating a temporary encryption key of the write-in operation to encrypt plaintext data of the host system to obtain ciphertext data; writing the ciphertext data into a flash memory physical page corresponding to the physical page address to obtain a ciphertext physical page address; when the access mode is a hostile attack mode, secretly updating the ciphertext physical page address into a new physical page address, and deleting the ciphertext physical page address; and when the access mode is a secure access mode and the verification key is consistent with the bound master control key, normal loading and data access requests of the solid state disk are allowed. According to the invention, the security and integrity of data storage can be improved.

The embodiment of the invention provides a heat dissipation structure of electronic equipment and the electronic equipment, and belongs to the technical field of electronic equipment.The heat dissipation structure of the electronic equipment comprises at least two heat conduction parts which are arranged at intervals, and the heat conduction parts are used for making contact with a heating element so as to transfer heat of the heating element; the cooling piece is arranged on any heat conduction part and is connected with the heat conduction part so as to exchange heat with the heat conduction part; the connecting piece is connected with the heat-conducting piece and the cooling piece, the cooling piece and / or the at least one heat-conducting part can rotate around the axis of the connecting piece, and the cooling piece and / or the at least one heat-conducting part have / has a preset position where a mounting gap is formed after rotating to be closed; the locking assembly is configured to detachably connect the cooling part at the preset position and / or at least one heat conduction part with the adjacent heat conduction part. According to the heat dissipation structure of the electronic equipment, the heat dissipation effect on the heating element can be enhanced, and installation and maintenance of the solid state disk are facilitated.

The invention discloses a key value storage system indexing method oriented to an NVM-NVMe SSD (Non-Volatile Memory-Non-Volatile Memory Express Solid State Disk) hybrid architecture, which comprises the following steps of: constructing a heterogeneous storage architecture taking cold and hot data perception as a core driving mechanism, coordinating and managing two types of storage media, namely a non-volatile memory NVM and a solid state disk NVMe SSD, and realizing efficient identification, layered writing and dynamic migration of cold and hot data. According to the method, the characteristics of low delay, durability and byte addressing of the NVM are utilized, the frequency and I / O overhead of Flush and Compaction operations are reduced in a data write-in path, meanwhile, the problem of mixed storage of cold and hot data is avoided, and therefore the overall performance and storage efficiency of a system are remarkably improved. In addition, by introducing an asynchronous migration module, the method can dynamically adapt to the change of data popularity along with time evolution, and effectively support high performance and high availability of the key value system in long-term operation.

The invention relates to a cache data processing method and device, computer equipment, a computer readable storage medium and a computer program product. The method is applied to a distributed storage system adopting a three-layer architecture design, and the three-layer architecture comprises a service application layer, a data processing layer and a persistence layer. Comprising the following steps: acquiring access request monitoring information through a service application layer to obtain an access feature data set, and performing pattern classification identification on the access feature data set to obtain a predicted access pattern; generating a prefetching task list and prefetching data according to the predicted access mode, and storing the prefetching data to a data processing layer for caching processing; and executing each prefetching task according to the sequence of the prefetching task list, and reading the prefetching data from the mechanical hard disk and writing the prefetching data into a cache space in a solid state disk resource pool under the condition that the prefetching data does not exist in the solid state disk resource pool of the persistence layer. By adopting the method, the cache performance can be improved.

The invention relates to the technical field of hard disks, in particular to a data protection method of a solid state disk and the solid state disk, the method comprises the steps that a flash memory medium is divided into a data block area, a log block area and a metadata area, and the metadata area comprises a mapping directory, a mapping block and a check point block; a block mapping table and a log page mapping table are established in a volatile memory, and dbMSN and lbMSN are stored. Adding write-in data to a log block page, updating a log page mapping table, and generating check points according to full writing of a log area. When no free page exists, the damaged log blocks are selected in a rotating mode to be combined, new data block migration pages are distributed, mapping is updated, the MSN is progressively increased, changes are written into the mapping blocks, and the mapping catalogue is updated when the mapping blocks are addressed. After restarting, positioning a mapping block by a mapping directory to recover block mapping, reading check points in a reverse order, and traversing an uncovered log area to reconstruct log page mapping; and comparing the dbMSN with the lbMSN, setting inconsistent log pages to be invalid, establishing consistent access and shielding invalid pages. According to the method and the device, the problems of data consistency and availability caused by metadata loss, uncertain merging state and low recovery efficiency of the hybrid mapping FTL in a crash scene can be solved.

The invention relates to the technical field of data security, in particular to a mobile solid state disk data encryption storage method based on a trusted computing module. According to the method, integrity measurement is carried out on an operating environment through a trusted computing module, and a trusted measurement value is generated; generating a session-level encryption key based on the trusted magnitude; encrypting data using the key and storing key metadata; during data reading, correlation verification is carried out to determine whether decryption is authorized or not; and baseline adjustment can be triggered according to the measurement deviation. According to the invention, the data security of the mobile storage device is improved, and an environment-aware dynamic key management mechanism is realized.

The invention discloses a memory access method based on a memory expansion controller, a memory expansion card and equipment, and relates to the technical field of computers, and the method comprises the following steps: carrying out twice address mapping on a target access address in a memory read-write instruction through the pre-created memory expansion controller, the target access address is mapped to a hard disk storage space from a processor memory physical address space, whether the mapped access address is hit in a preset cache space or not is judged, and if the mapped access address is hit, read-write operation is directly conducted on corresponding target data in the preset cache space; and if not, performing read-write operation on the corresponding target data in the solid state disk. By means of the mode, the solid state disk can be used as the extended memory of the host, the memory extension cost is remarkably reduced, ultra-large-capacity memory extension can be achieved, accordingly, the memory access cost is reduced, and meanwhile the access speed is taken into account in the mode of presetting the cache space.

The invention discloses a spaceborne high-performance calculation module and system based on a SpaceVPX standard and a control method. The calculation module comprises a board card following the SpaceVPX standard, and a core processor module, a storage module, a communication interface module, a monitoring module, a power management module and a VPX connector which are integrated on the board card. The core processor module adopts an anti-radiation reinforced high-performance processor; the storage module comprises a DDR4, a NORFLASH and an SSD (Solid State Disk); the communication interface module comprises an Ethernet, an SRIO high-speed interface and a debugging interface; the monitoring module collects state information through an I2C bus; the power management module provides stable power supply; the VPX connector leads out an SRIO bus, an ETH bus and an I2C bus, and star interconnection with other units on a satellite is achieved. Through standardized and modular design, the problems that an existing satellite-borne computing architecture is fixed, poor in expansibility and insufficient in reliability are solved, and high-performance, high-reliability and flexibly-combined satellite-borne data processing capacity is achieved.

The invention discloses a multi-dimensional power consumption test method and device for a solid state disk and a storage medium, and the method comprises the steps: controlling a test environment parameter and the solid state disk to enter a preset initial state in response to a test start instruction; based on a test matrix which predefines a plurality of temperature and capacity occupation combinations, controlling a test device to apply a multi-dimensional dynamic working load to the solid state disk, and synchronously acquiring power consumption data, internal state data and performance data; performing time synchronization and data fusion on the collected multi-source data to form an associated data set; and performing intelligent analysis on the data set, extracting power consumption characteristics of the solid state disk, and generating a power consumption evaluation report based on the power consumption characteristics. According to the method, the problems of single test dimension, incomplete test condition coverage, failure in effective fusion of multi-source data and lack of intelligent analysis in the prior art are solved, and comprehensive, accurate and automatic evaluation of the power consumption of the solid state disk is realized.

The invention discloses a test case scheduling method and device, equipment, a storage medium and a computer program product, and relates to the technical field of tests.The method comprises the steps that when a to-be-executed test task sent by a user to a solid state disk is received, a to-be-executed test case contained in the to-be-executed test task is obtained; marking an execution priority corresponding to the to-be-executed test case according to the defect occurrence probability of the to-be-executed test case; querying an available test environment under the current test version and historical execution data of the to-be-executed test case; and scheduling the to-be-executed test case based on the execution priority, the available test environment and the historical execution data. According to the method, the corresponding execution priority is determined according to the defect occurrence probability of the to-be-executed test case, and then the to-be-executed test case is scheduled based on the available test environment under the current test version, the historical execution data of the to-be-executed test case and the execution priority, so that the test efficiency of a test link and the test resource utilization rate are improved.

The invention provides a solid state disk energy consumption optimization method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the throttling operation of the transmission bandwidth of a PCIe link if the first data transmission rate of the PCIe link does not meet the transmission rate requirement; performing layering operation on the cache space of the solid state disk based on the link transmission state of the throttled PCIe link to obtain a layered cache structure; determining a migratable task in each cache layer based on a data storage condition of each cache layer in the layered cache structure and a task execution condition of the solid state disk, and migrating the migratable task of each cache layer to a target cache region to obtain a cache layout after task migration; and if the second data transmission rate of the PCIe link after throttling meets the transmission rate requirement, adjusting the working mode of each component in the solid state disk based on the second data transmission rate and the cache layout. The energy consumption of the solid state disk is optimized, the read-write performance is improved, and the service life is prolonged.

The invention relates to the technical field of electric digital data processing security, and discloses a solid state disk data encryption method and a solid state disk. According to the method, a national cryptographic algorithm hardware encryption and decryption co-processing module is serially arranged on a data bus between a main control chip and a flash memory particle array, so that transparent encryption of write-in data and transparent decryption of read-out data are realized; the module performs encryption and decryption based on an SM4 algorithm and an XTS advanced encryption standard mode in combination with a logic address as an adjustment value, and securely injects a root key through an out-of-band interface to derive a data key. The system comprises a main control chip, a flash memory array and the co-processing module, wherein the co-processing module is integrated with a hardware encryption and decryption engine, a key management unit and data flow control logic. On the premise that a general main control chip is not changed, high-performance, high-compatibility and high-security national cryptographic hardware-level full-disk encryption is realized.

The invention discloses a garbage collection optimization method and device, equipment and a medium. The invention relates to the technical field of solid state disks, which comprises the following steps that: a global invalid data bit chart is established in a host memory, each table item in the global invalid data bit chart corresponds to a physical block, and a bitmap bit in each table item corresponds to a physical page in the physical block; bit values corresponding to the bitmap bits comprise a first bit value and a second bit value; responding to a data updating event through an access acceleration engine so as to dynamically update the bit value of the corresponding physical page in the global invalid data bit graph; and when garbage collection is triggered, screening the physical page of which the bit value is the second bit value in a to-be-collected source physical block according to the global invalid data bit chart and the access acceleration engine to perform validity verification and data migration, and skipping the physical page of which the bit value is the first bit value. According to the invention, the garbage recycling efficiency is improved.

The invention discloses a composite stress test method and device for a solid state disk, equipment and a medium, and the method comprises the steps: loading a test configuration parameter, and building communication connection with a to-be-tested solid state disk which is preset in a preset test environment; performing performance baseline calibration and preprocessing on the to-be-tested solid state disk; executing a composite stress performance test, and dynamically coupling at least two of temperature stress, capacity occupation stress, power interruption stress, garbage collection induced stress and mixed load stress; synchronously acquiring test data and constructing a time sequence data warehouse; and performing intelligent deep analysis based on the time sequence data warehouse, wherein the intelligent deep analysis comprises performance consistency deep analysis and health degree and risk prediction analysis. According to the method, a real complex environment is simulated through the composite stress test, the problem that a traditional test method is single in scene is solved, meanwhile, the problem that data analysis is shallow is solved through intelligent deep analysis, and the reliability of the solid state disk can be comprehensively and accurately evaluated.

The invention discloses a log management method and device for a solid state disk, equipment and a medium, and relates to the technical field of computers. The method is applied to a device side and comprises the steps that in the firmware compiling generation stage of the solid state disk, a log mapping table is generated through a preset script; in the running process of the solid state disk, persistently storing the generated log data into a nonvolatile storage medium of the solid state disk to obtain an original log text; when log export needs to be carried out, obtaining a log export command issued by the host side through the out-of-band channel, reading the original log text from the nonvolatile storage medium according to the log export command, and converting the original log text into target data containing numerical information; and sending the target data to the host side through the out-of-band channel, so that the host side restores the target data into the original log text according to the log mapping table. According to the technical scheme, the problem that the file transmission time is long in a traditional mode can be solved.

The invention provides a power-down continuous test data consistency verification method and device, equipment and a medium. The method comprises the following steps: issuing a query instruction to obtain disk information of a currently connected SSD (Solid State Disk); according to the disk information, judging whether to issue a continuous test request; if a continuous test request is issued, returning a processing result according to the disk information and the continuous test request through a preset processing rule; selecting a continuous test request corresponding to a successful result as a verification request according to the processing result; and performing consistency verification on the disk information according to the verification request. By systematically executing the steps of disk information acquisition, continuous test request decision, request filtering and screening, final consistency comparison and the like, an automatic closed-loop test process is constructed, and the problem that the consistency of SSD power failure continuous test data cannot be verified by various IO tools at present is solved; and consistency verification can be carried out on the successfully written data before and after power failure.

The invention provides an NAND flash memory write-in distribution method of a solid state disk, which is used for dynamically determining an optimal block for data write-in by analyzing content characteristics and update frequency of data to be written in, evaluating health state of each block of a flash memory and establishing data repetition and update frequency indexes. According to the method, static or repetitive data can be assigned to blocks with low or medium health degree according to data characteristics, data with high updating frequency is preferentially written into the healthy blocks, and the health state and statistical information of the blocks are updated in each writing period, so that the service life of the non-volatile flash memory is prolonged, the non-uniform service life distribution of the blocks is improved, and the service life of the non-volatile flash memory is prolonged. And the balance of writing efficiency is maintained. In addition, through feature abstract comparison and hash value check, data characteristics can be accurately identified, and a reliable, dynamic and efficiency-optimized flash memory management effect is achieved.

The invention relates to the technical field of data storage, and discloses a solid state disk compatibility testing method which comprises the following steps: after a solid state disk is started, automatically collecting basic performance information of the solid state disk based on a Python script and generating a standardized log file; running performance operation of the solid state disk in a preset time period, and simultaneously executing multi-user or multi-task concurrent test operation based on the automated script; a script is used for calling a system startup command or a shutdown command, the next startup process is automatically triggered after shutdown, a startup and shutdown cycle test mechanism is formed, and the startup time, the initialization duration and the abnormal interruption record of the solid state disk are synchronously collected in each startup and shutdown process; when the system runs, the Python script is used for safely removing and reinserting the solid state disk. The problem that an existing test method is narrow in platform coverage range is solved.

Provided is a method for writing data to a Solid State Disk (SSD), an apparatus and the SSD. According to the method, a Logical Block Address (LBA) of each of a plurality of pieces of written data stored into a target cache module is acquired to obtain a plurality of Logical Block Addresses (LBAs); the plurality of pieces of written data in the buffer is stored into a solid-state storage unit of the SSD; whether the plurality of LBAs are consecutive is determined to obtain a determination result. In a case where the determination result indicates that the plurality of LBAs are consecutive, a Physics Block Address (PBA) of each of the plurality of pieces of written data in the solid-state storage unit is acquired to obtain a plurality of PBAs and a target mapping table according to the plurality of LBAs and the plurality of PBAs is generated.

The invention relates to the technical field of electric digital data processing, and discloses a solid state disk controller circuit and a solid state disk. The controller circuit comprises a physical unclonable function unit based on an SRAM (Static Random Access Memory), which is used for dynamically generating a stable hardware trust root key during power-on; the secure boot and firmware decryption engine is used for deriving a firmware decryption authentication key and a data key packaging key by using the key, and carrying out decryption and integrity verification on the encrypted firmware; the runtime firmware execution monitoring unit is used for detecting illegal jump in real time and triggering safe shutdown through a hardware-level control flow diagram; and the dynamic data encryption key management unit recovers the plaintext data key and sends the plaintext data key to the encryption engine only during operation, and power failure disappears. By means of the scheme, end-to-end security protection of firmware and data is achieved, and the risks of static key leakage and firmware tampering are eradicated.

A power consumption prediction and management method and system based on a solid state disk, a medium and a product relate to the field of solid state disks. The method comprises the following steps: predicting the workload intensity of a host in a first preset time window based on an I / O (Input / Output) instruction stream to obtain an expected host workload curve, and determining an expected host idle time period; calculating an expected host power consumption value in the expected host idle time period; extracting internal state parameters of the solid state disk according to the historical operation log data; establishing a background task triggering probability model, and calculating the triggering probability of starting the high-power-consumption background task by the solid state disk in a first preset time window; performing power consumption conflict judgment according to the expected host power consumption value and the triggering probability, and generating a comprehensive predicted power consumption value; and based on the comprehensive predicted power consumption value, determining an optimal target power consumption state, and instructing the solid state disk to be switched to the optimal target power consumption state. By implementing the technical scheme provided by the invention, the stability of state switching of the solid state disk is improved.

The invention discloses an out-of-band management method and device based on a solid state disk, and relates to the technical field of solid state disks, and the out-of-band management method comprises the steps: obtaining an original signal from a system management bus channel or a PCIe expansion channel in a solid state disk system; determining an original command corresponding to the original signal; analyzing the original command into a target command, and executing the function of the solid state disk system based on the command type of the target command to obtain an execution result; according to the execution result, a response message adapted to the system management bus channel or the PCIe extension channel is generated, and the response message comprises operation data of the solid state disk; and adjusting the priority of the target command by using the operation data, and through the technical scheme disclosed by the invention, the problems of low efficiency and poor flexibility of out-of-band management in related technologies are solved, and the out-of-band management efficiency and flexibility of the solid state disk are improved.

The invention discloses an NVMe storage array virtualization device based on an FPGA (Field Programmable Gate Array), which is characterized in that single I / O (Input / Output) virtualization (SR-IOV) is realized in the FPGA, and a plurality of NVMe virtual functions which can be directly accessed by a virtual machine are externally provided; mapping from a virtual volume logic address to a physical storage address is completed in hardware, striping management and RAID verification calculation are carried out on a plurality of NVMe solid state disks at the rear end, and storage resource pooling is achieved; the partial reconfigurable characteristic of the FPGA is utilized, I / O scheduling, data compression and prefetching strategies are dynamically adjusted, and the adaptability and performance efficiency of the system are improved. Hardware unloading of the whole I / O path is completed in the FPGA, intervention of a host CPU is not needed, delay is remarkably reduced, the throughput capacity is improved, service quality isolation and elastic expansion in a multi-tenant environment are supported, and an effective technical path is provided for constructing a next-generation high-performance and low-delay storage infrastructure.

The invention relates to the technical field of solid state disks, and discloses a solid state disk data writing method and device.According to the solid state disk data writing method, a temporary standby space is constructed through a reserved standby block, and the standby space is started through comprehensive judgment of the firmware system resource state and the garbage collection module running state; when the idle blocks of the firmware system are insufficient or the garbage collection module runs to cause the shortage of write resources, a temporary write carrier can be quickly provided, and the write request of the Host end is prevented from being blocked or delayed; meanwhile, by monitoring the resource state of the free block in real time, data migration is completed in time and the standby block is released when the resources are sufficient, so that the continuity and the high efficiency of data writing are guaranteed, the standby block is ensured to return to a redundant backup role, the original bad block replacement function is not influenced, and the tail end writing performance and the operation stability of the solid state disk are effectively improved.

The invention provides an industrial-grade solid state disk firmware upgrading reliability detection method and system. The method comprises the steps that compatibility verification is conducted on the solid state disk and a to-be-upgraded firmware file, if verification passes, firmware upgrading is conducted in a standard test environment to obtain a basic success rate, and if verification is larger than a preset basic success rate threshold value, firmware upgrading is conducted in a disturbance environment, and process index monitoring is conducted; and performing real-time threshold detection according to the process indexes, performing multi-stage risk interception on the firmware upgrading process, obtaining solid state disk performance index data before and after upgrading, judging whether the hard disk has performance degradation or not through threshold comparison, if not, performing weighted processing on the solid state disk performance index data before and after upgrading, and then performing judgment. And if the performance degradation is not judged, performing firmware integrity and data consistency verification, and if the verification is passed, performing firmware upgrade reliability judgment, so that the aim of accurately detecting the firmware upgrade reliability is fulfilled.

The invention relates to the technical field of data storage, and discloses a solid state disk compatibility and reliability testing method which comprises the steps of initializing a testing environment, installing an operating system, compiling and executing a testing script and configuring a compiling environment. Basic information of the solid state disk is recognized and classified, an automatic script is written, the classified basic information of the solid state disk is created into file clusters of different sizes according to the automatic script, continuous / random reading and writing are conducted, and file integrity is verified; and performing performance test on the classified basic information of the solid state disk by using a Fio tool and recording performance indexes of the solid state disk, wherein the performance indexes comprise sequential read-write speed, random IOPS and response delay, compiling an automatic script, and simulating a database load to perform small block random read-write operation. According to the invention, a plurality of modules for basic function and compatibility test, performance test, power management and reliability test, safety characteristic test and the like are integrated into a complete and automatic test scheme.