43 results about "Disk controller" patented technology

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 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.

The invention discloses a solid state disk pre-reading method and a solid state disk. The method is applied to a solid state disk controller, and comprises the following steps: receiving a first read instruction sent by a host; determining a pre-read data volume of the first read instruction according to the state information of the solid state disk; determining a first pre-read address interval based on a first read address interval in the first read instruction and a pre-read data volume, generating a pre-read instruction according to the first pre-read address interval, sending the pre-read instruction to a flash memory controller to read first pre-read data, and storing the first pre-read data in an internal cache; receiving a second read instruction sent by the host, wherein an address intersection exists between a second read address interval in the second read instruction and the first pre-read address interval; and responding to the second read instruction according to the first pre-read data and the address intersection. Through the scheme provided by the embodiment, the host read delay of the SSD can be reduced, and the influence of the pre-read operation on the effective bandwidth of the SSD is reduced.

The invention discloses a hardware acceleration device and method for high-throughput lossless data compression, and relates to the field of integrated circuit design. The device comprises a front-end LZ77 compression module, a middle buffer module and a rear-end entropy coding module, wherein the front-end LZ77 compression module is configured to search and match input data; the intermediate buffer module is configured to realize decoupling of front and rear end processing time domains through an asynchronous symbol buffer; the back-end entropy coding module is configured to receive an output of the intermediate buffer module, construct a microcode packet intermediate representation containing codeword information, and parse the microcode packet to generate a serial compressed bit stream. According to the method, invalid memory reading and assembly line pause can be effectively eliminated, the throughput and the energy efficiency ratio of the hardware compressor are remarkably improved on the premise of not sacrificing the compression rate, and the method is suitable for unloading acceleration of a high-performance solid state disk controller, an intelligent network card and a cloud server.

The utility model relates to the technical field of magnetic disk control, and discloses an ultra-thin magnetic disk controller, which comprises a controller main body, a metal heat dissipation plate is tightly attached and fixed at the bottom of the controller main body, and a plurality of heat dissipation fins are uniformly and vertically distributed at the bottom end of the metal heat dissipation plate so as to increase the heat dissipation area; and a heat-conducting copper pipe. According to the utility model, the controller main body is tightly connected with the metal heat dissipation plate, and the heat dissipation fins reasonably distributed at the bottom end are matched, so that the heat dissipation area is greatly increased, and heat generated by the controller main body can be quickly dissipated to the surrounding; secondly, the heat conduction copper pipe is accurately connected with the heating source main chip, the power amplifier and the heat dissipation fins, an efficient heat conduction channel is opened up for heat by means of the excellent heat conduction performance, and it is ensured that the heat is conducted out in time; and moreover, the shell is made of a high-thermal-conductivity plastic material and is provided with regular micro heat dissipation holes, so that the ultrathin structure is maintained, the efficient heat exchange between the inside and the outside air is ensured, and the heat dissipation is further enhanced.

A method, computer system, and a computer program product are provided for operating a primary and a backup RAID storage array. A disk drive configuration is loaded into a disk controller in a primary RAID array and a disk controller in a backup RAID array. The disk drive configuration includes a schedule for a sequence of selectively power cycling the disk drives, which is executed by the disk controller in the primary and in the backup RAID arrays. Upon detecting a disk failure, each disk controller executes a recovery procedure according to instructions included in the disk drive configuration. Recovery procedure includes suspending power cycling all disk drives and powering on all intentionally powered off disk drives. Data is copied from the corresponding backup RAID array disk drive to primary RAID array to rebuild the failed drive. The RAID configuration remains in this state until failed disk drive is repaired.

The invention discloses a data transmission method and device, equipment and a storage medium, and relates to the technical field of storage. In the method, a descriptor storage area is arranged in a hard disk controller, and data transmission is performed according to data transmission information issued by a host and used for controlling data transmission and the remaining storage space of the descriptor storage area; according to the method, the number of descriptor entries which can be stored in the descriptor storage area can be determined, and the descriptor entries can be read from the host in batches according to the number of the descriptor entries, so that the interaction times of the hard disk controller and the host can be reduced, and the reading efficiency of the descriptor entries can be improved; therefore, the problem that the acquisition efficiency of PRP / SGL descriptor entries in some technologies is relatively low can be solved.

The application discloses an inline small data transmission method and system based on an NVMe command queue, and belongs to the field of electronic digital data processing. The application aims at the problem that the PRP / SGL mechanism in the existing NVMe protocol takes 4KB physical pages as the minimum transmission granularity, leading to bandwidth amplification and redundant direct memory access operation in the small data scene. The submission queue is expanded into a mixed transmission channel of commands and data. When the effective load is less than or equal to a preset threshold, the host side segments the data, constructs an NVMe command containing a combined command type code, and writes the command and the data segment as a continuous 64-byte entry into the submission queue in sequence. The solid state disk controller sequentially reads the submission queue, identifies the inline transmission mode according to the combined command type code, directly extracts the data segment or triggers the direct memory access engine to perform multi-source aggregation transmission. The application eliminates redundant direct memory access transactions, improves the high-speed peripheral component interconnect link bandwidth utilization, and reduces the small data transmission delay.

The present invention relates to the field of interrupt loads, and specifically discloses an interrupt load balancing optimization method and device. The method obtains a hard disk affinity physical CPU list of a disk controller based on links of various server components; obtains the physical CPU where each CPU affinity core in the original CPU affinity core list is located through the kernel, and records it as the original physical CPU; calculates the workload of each original physical CPU; if the workload of an original physical CPU exceeds a first load threshold, deletes the CPU affinity core corresponding to the original physical CPU from the original CPU affinity core list, selects a physical CPU with a load less than the first load threshold and the smallest load from the hard disk affinity physical CPU list, selects a CPU core from the physical CPU and adds it to the original CPU affinity core list to obtain an optimized CPU affinity core list. The present invention adjusts the original CPU affinity core of the interrupt by adding an interrupt load balancing monitoring service, thereby achieving balanced processing of the interrupt load and reducing the probability of CPU soft lock.

The invention discloses a host command processing system and method, storage equipment and electronic equipment, and relates to the technical field of computers.According to the command type of a data migration command, whether a data migration task is conversion capable of omitting part of DMA descriptors or not is distinguished, if yes, a first descriptor conversion module is used for omitting a conversion strategy according to a preset descriptor; according to the method, the data migration command is converted into the target descriptor, so that waste of DMA descriptor conversion resources by the solid state disk controller is avoided, meanwhile, the conversion efficiency of the DMA descriptor is improved, and a foundation is laid for improving the response efficiency of the data migration command.

The invention relates to the field of computer data security, in particular to a solid state disk data protection method based on USB flash disk authentication. The method comprises the following steps: triggering a security process when an authentication USB flash disk accesses a system; establishing a secure channel between the USB flash disk and the solid state disk controller, and carrying out bidirectional information exchange and verification; authentication information matching is carried out in the devices of the two parties; only when both the two-way verification are successful, the controller unlocks the secure storage area; if verification fails, the safe area is kept to be locked. According to the method, a dynamic check code is adopted to improve authentication security, user identity authentication is introduced to enhance access control, a protection measure is dynamically triggered by monitoring a read-write operation sequence in real time and identifying an abnormal mode, and an encrypted auditing log is recorded at the same time. According to the method, a data protection system combining equipment and user dual authentication, dynamic security monitoring and complete audit tracking is realized.

A method, computer system, and a computer program product are provided for operating a primary and a backup RAID storage array. A disk drive configuration is loaded into a disk controller in a primary RAID array and a disk controller in a backup RAID array. The disk drive configuration includes a schedule for a sequence of selectively power cycling the disk drives, which is executed by the disk controller in the primary and in the backup RAID arrays. Upon detecting a disk failure, each disk controller executes a recovery procedure according to instructions included in the disk drive configuration. Recovery procedure includes suspending power cycling all disk drives and powering on all intentionally powered off disk drives. Data is copied from the corresponding backup RAID array disk drive to primary RAID array to rebuild the failed drive. The RAID configuration remains in this state until failed disk drive is repaired.

Disclosed in the present disclosure are a method of controlling a read or write operation for disk data, a related component, and a front-end shared card. A first end of the front-end shared card is connected with a host through the M links, and the second end of the front-end shared card is respectively correspondingly connected with the disk through the N disk controllers. The front-end shared card is connected to the disk controllers, and if any one of the links has a fault and is disconnected, the host may still be connected to any one of the disk controllers through the front-end shared card, and therefore, the front-end shared card receives a read or write task request of the host, and controls, based on the read or write task request, a target disk controller to perform a read or write operation on the disk.

The application discloses a kind of hardware spinlock logic interval check devices supporting multiprocessor programming, including interface control module and logic control module, interface control module includes bus interface, n input message queue, n return message queue and register control module, logic control module includes spinlock control module, logic interval check control module, logic interval information storage array and spin queue.N input message queue is connected with external n microprocessor respectively, for receiving and storing input message from microprocessor, spinlock control module is connected with n input message queue, register control module, logic interval check control module, spin queue, n return message queue, register control module is connected with bus interface.The application reduces the software overhead in solid state disk controller, including reducing the node queue, inter-core interaction queue in software maintenance on-chip cache resource occupation, improve the efficiency of interval check.

The invention discloses a flash memory controller, a solid state disk controller and electronic equipment, and belongs to the technical field of storage. The flash memory controller comprises a queue manager and a flash memory processor; the queue manager is coupled with the flash memory processor; the queue manager is used for managing a command queue aiming at a flash memory crystal grain, the command queue comprises a flash memory operation command to be executed, and the flash memory operation command comprises at least one of a cache reading command and a cache programming command; and the flash memory processor is used for executing the flash memory operation command.

The application relates to the field of solid state disk applications, and discloses a solid state disk controller and a control method thereof, a solid state disk, and a solid state disk system. A virtual machine is arranged in the solid state disk controller to run solid state disk firmware, and an emulator is arranged to simulate the hardware module of the solid state disk controller. When the solid state disk firmware sends an access request to the hardware module, the access request is intercepted by the virtual machine and forwarded to the emulator to simulate the behavior of the hardware module. On the one hand, the virtual machine and the emulator arranged in the solid state disk controller can decouple software and hardware, realize the running of the solid state disk firmware on the virtual machine, and be beneficial to realizing the customized development of the solid state disk. On the other hand, the secondary development of a third party can be realized based on the emulator, and the development efficiency is improved.

The application discloses a flash translation layer management method and system based on flow-aware cache, solves the problems of insufficient hot spot identification, cold and hot mixed writing, more GC migration pages and local wear imbalance of the existing flash translation layer under complex load, and belongs to the solid state disk controller and flash translation layer management technology.The application first identifies a target flow, determines the category of the target flow according to statistical information and sequential access proportion of the target flow, and the category at least includes hot flow, warm flow and cold flow; according to the category of the target flow, a physical partition is selected, and the data to be written is written into the corresponding physical partition; a read request is received, corresponding reading is carried out, a to-be-recovered partition request is generated according to the free page state of each physical partition and is queued according to the priority; garbage collection is carried out according to the priority order, and different sacrifice block recovery strategies are selected; the difference in erasing times between the hot partition and the cold partition is monitored, and the data is migrated from the high-wear block in the hot partition to the low-wear block in the cold partition.

The invention discloses a target hard disk determining method and device, electronic equipment and a storage medium, and relates to the technical field of communication, the target hard disk determining method comprises the steps that whether the first in-place number of multiple first hard disks is equal to the second in-place number of the multiple first hard disks or not is determined, the first in-place number is obtained through a complex programmable logic device, and the second in-place number is equal to the second in-place number; the second in-place number is obtained through the hard disk controller; when it is determined that the first in-place number is larger than the second in-place number, whether a plurality of first power signals of a plurality of third hard disks in a plurality of second hard disks are abnormal or not is determined through a three-stage filtering sampling circuit; when it is determined that the first power signals are abnormal, the third hard disks are determined as target hard disks, and the target hard disks are hard disks disconnected with the server. Therefore, the problem that the traditional detection means is inaccurate in detection under the condition that the physical connection is abnormal but the power failure is not complete in the prior art can be solved.

The application relates to the technical field of hard disks, in particular to a garbage collection method and system of a solid state disk controller based on a network on chip. The method comprises the following steps: selecting a garbage collection target block from a plurality of NAND flash memory blocks, identifying valid pages and reading the valid pages to a flash memory storage controller buffer; keeping valid page cache data and obtaining error analysis results; judging whether the valid pages need error correction according to the error analysis results and determining available target pages in a migration target block; directly writing the buffer valid pages into the available target pages when error correction is not needed, executing error correction by an error correction processing unit and writing the available target pages through network on chip interconnection when error correction is needed; cyclically executing the above steps for each valid page of the target block, and erasing the target block after migration is completed to recover storage space, so that the internal data transmission path of valid page migration is shortened, garbage collection latency is reduced, and the influence on host request processing performance is reduced.

The invention provides a power failure data protection method and device, equipment, a storage medium and a product, applied to an RAID controller, the method comprises the steps that PCIe configuration spaces of all connected hard disks are read in the initialization stage, and at least one target hard disk conforming to a preset white list is screened; obtaining a base address register space mapped by the PMR of the target hard disk; verifying whether the total base address register space corresponding to all the target hard disks meets the total data volume of the cache; if yes, setting a backup enabling flag in the PCIe configuration space of the target hard disk to be in an enabled state, and enabling a power-down backup scheme; and when the RAID controller is in a power-down state, concurrently writing the cache data into a base address register space of the target hard disk, and backing up the cache data to the PMR, so that the hard disk controller stores the cache data of the PMR to a flash memory. Compared with a traditional scheme in which the capacity of a super capacitor is in direct proportion to the cost, the scheme does not need to depend on a high-capacity super capacitor, and the cost of the RAID storage system is reduced.

The application relates to a storage device, a method and an electronic device, the storage device comprising a controller and a first memory, the first memory comprising a plurality of disks, the controller comprising a second memory for caching data, the controller being configured to: generate a virtual address corresponding to first address information of first data to be operated and a category of a target disk; generate an operation instruction according to the virtual address; send the operation instruction to the target disk to make the target disk generate an address reading instruction for the virtual address; and in the case that the address reading instruction sent by the target disk is received, interact with the target disk according to the first address information corresponding to the virtual address. The embodiment of the application can simplify address management inside the storage device through address virtualization, thereby improving processing efficiency.

The present application relates to the technical field of hard-disk drive backplanes. Disclosed are a hard-disk drive backplane module and a server. The hard-disk drive backplane module comprises a first hard-disk drive backplane, which comprises a first gold finger, a redundant-array-of-independent-disks controller chip, a first connector and a first hard-disk drive interface, wherein the first gold finger is configured to connect to a first signal connector of a motherboard; some of pins of the first gold finger are connected to the first hard-disk drive interface, and are configured to transmit a first data signal; the redundant-array-of-independent-disks controller chip is connected to the other pins of the first gold finger, and is configured to perform conversion between a data signal of the first gold finger, a second data signal and a third data signal; the redundant-array-of-independent-disks controller chip is configured to transmit the second data signal to the first hard-disk drive interface and transmit the third data signal to the first connector; and the first connector is configured to transmit the third data signal to another hard-disk drive backplane. The present application can support different types of hard disk drives, and can support a relatively large number of hard disk drives, thereby meeting the storage requirements of a server.

The present application discloses a power supply circuit, a power supply method, a hard disk controller and a redundant power supply system, which relate to the field of electronic circuit technology. The circuit includes: an anti-backflow module, a hot-swap control module, and a voltage conversion module; the first anti-backflow port is electrically connected to the third voltage conversion port, the second anti-backflow port is electrically connected to the first hot-swap control port, the third anti-backflow port is used to output voltage, the second hot-swap control port is electrically connected to the second voltage conversion port, and the first voltage conversion port is connected to the input voltage. When the power supply circuit is working normally, redundant power supply is provided to the electrical appliances; when the power supply circuit needs to be hot-swapped for maintenance, the electrical appliances are powered stably after removal preparation. The power supply circuit, power supply method, hard disk controller and redundant power supply system disclosed in the embodiments of the present application can ensure that the power supply to the electrical appliances is stable during the hot-swap maintenance of the power supply circuit, and improve the maintainability of the power supply circuit.

The invention discloses a command processing method and device for address management, electronic equipment and a storage medium, and relates to the technical field of computers. And comprehensive processing is carried out according to an overlapping detection result of a logic block address and a pre-stored address and an operation type when the command is processed, so that each command from different central processing units and a processing result thereof are ensured to always keep strict matching and consistency on a hardware level; the technical problems of command response disorder and system reliability reduction caused by the fact that a processing result of a hardware address management module under a multi-central processing unit architecture cannot be correctly routed are solved, and the technical effect of remarkably improving the data processing efficiency and the overall performance of the multi-core solid state disk controller is achieved.

The application relates to the technical field of storage, and discloses a data processing method and device, computer equipment and a storage medium, which are applied to a read master core of a hard disk controller, and the hard disk controller further comprises at least one read backup core; the method comprises the following steps: in the process of reading and writing a source data block and a target data block, a first variable value is obtained from a hard disk cache at a first time, the first variable is used for measuring the load amount of the read master core at the first time; if the first variable value is a first numerical value at the first time, a request reading message is generated and sent to the at least one read backup core, the request reading message is used for instructing the at least one read backup core to start and assisting the read master core to execute the reading and writing operation on the source data block and the target data block, and the first numerical value is used for indicating that the read master core is in a load state. The application can solve the problem that, in the hard disk garbage collection process, if the read processing core is occupied by other services or is insufficient in performance, the reading speed is slow, and the service performance is affected.

The invention discloses an SSD low-cost out-of-order rearrangement method and device and a medium, and relates to the technical field of SSDs, and the method comprises the steps that three independent first-in first-out queues of a command, an address and write data are set in a solid state disk controller; in response to a plurality of memory read requests initiated to a host in sequence, writing an identifier of each request into a corresponding queue according to the data type of the request; and after the host returns data out of order, judging and processing the three queues in parallel: if the queues are not empty, checking whether the data corresponding to the identifiers at the head of the queues are returned or not, and reading the identifiers from the queues and processing the corresponding data when the data are returned. According to the method, a complex linked list sorting mechanism is replaced by simple sequence control logic of the first-in first-out queue, and the throughput is improved through independent parallel processing, so that the hardware implementation cost is effectively reduced and the processing efficiency is improved on the premise of ensuring correct rearrangement of the out-of-order data.

According to one embodiment, a magnetic head executes a magnetization operation of magnetizing a magnetic disk to one of a first polarity and a second polarity opposite the first polarity. The magnetization operation includes a first magnetization operation of magnetizing the disk with a first recording width and a second magnetization operation of magnetizing the disk with a second recording width larger than the first recording width. The controller magnetizes a first area unit to the first or second polarity in the first or second magnetization operation, and then magnetizes a second area unit to a polarity opposite to that of the first area unit in the second magnetization operation. The second area unit is an area unit, radially adjacent to the first area unit, included in a second track that is a track adjacent to a first track among tracks and to be written after the first track.

This invention discloses an independent disk redundant array controller and its control method, device, and host device, relating to the field of storage technology. The RAID controller includes: a communication endpoint unit, used to determine the target operating mode according to the control instructions sent by the host device; if the target operating mode is XOR accelerator mode, then calling the XOR calculation engine to process the direct-connect disk management operation tasks issued by the host device; wherein, the direct-connect disk management operation tasks include parity check operation tasks corresponding to the disk devices connected to the host device; this invention utilizes the RAID controller connected to the host device to realize hardware acceleration of the host device's hybrid hardware and software RAID, inheriting the high performance, high reliability, and low latency characteristics of hardware RAID, and possessing the convenience of hybrid RAID in terms of scalability and maintenance upgrades, which can significantly extend the life cycle of the storage system while reducing the cost of configuration and maintenance upgrades.

The application discloses a data storage system and electronic equipment, and relates to the technical field of data processing, and at least one acceleration hard disk containing multiple ports is arranged, a hard disk controller of the acceleration hard disk is used to establish a direct link with a processor of at least one node based on a computing express link (CXL) protocol and the multiple ports, shared access of the acceleration hard disk by multiple nodes is realized, and communication delay between the node and the acceleration hard disk is shortened based on the characteristics of low delay and high bandwidth of the CXL protocol; meanwhile, the processor of the node executes read and write operations on any acceleration hard disk through the direct link, data synchronization between multiple nodes is ensured, and on the other hand, data is actively migrated between different storage levels based on data access frequency, performance difference of storage media and capacity state of each storage level, so that the storage efficiency of the data storage system is improved.