269 results about "Disk array" patented technology

The invention discloses a disk array fault early warning method and related equipment, and relates to the technical field of computer storage, and the method comprises the steps: responding to a preset period triggering condition, and applying a preset mechanical excitation signal to a target disk array; collecting a vibration response frequency spectrum and an acoustic response waveform of the target disk array under the action of the mechanical excitation signal; performing fusion analysis on the vibration response frequency spectrum and the acoustic response waveform through a preset feature fusion model to obtain a fault probability prediction vector; and determining a real-time fault early warning instruction for the target disk array according to the fault probability prediction vector and a preset health reference vector. Through periodic mechanical excitation and multi-mode signal fusion analysis, high-precision, non-intrusive and real-time fault early warning of the disk array can be realized, the reliability of the disk array is improved, and the operation and maintenance cost is reduced.

The invention relates to the technical field of storage, in particular to a test method, device, equipment, system, medium and product, and the method comprises the steps: obtaining a test management command of an input and output management command representing error injection in a real working environment of a disk array controller chip; the command is analyzed to obtain the error injection test type and the corresponding related parameters, and the error processing mode is changed according to the error injection test type, so that the exception is only reported and not processed when encountering the exception in the test, the interference of exception processing on the test process is avoided, and the test can be smoothly carried out according to the preset error injection scene; and according to the error injection test type and the related parameters, constructing analog input and output and injecting the analog input and output into the target hardware unit to perform an execution behavior test, thereby realizing accurate test of the specific hardware unit in a specific error scene in an environment of performing input and output test based on a read-write input and output test program, so that the test is more comprehensive, and the test efficiency is improved. And the test precision is higher.

The invention discloses a data verification method and device for a redundant disk array, equipment and a medium, and relates to the technical field of data verification, when a data verification value of target data is generated, the target data is firstly divided into a plurality of data blocks, and correspondingly reference data is also divided into one-to-one corresponding reference blocks; then, the unit verification value of each data block is determined by taking the data block as a unit, and the data verification value of the target data is obtained through block-by-block calculation, so that the data verification of the target data is realized according to the data verification value, the memory occupation in the data verification value generation process is reduced, the storage requirement of temporary data is reduced, and the data verification efficiency is improved. The high memory overhead of processing the whole target data at a time is avoided, and the calculation efficiency of the data verification value is improved. The size of the data block can be flexibly adjusted according to requirements, the application range is wide, the flexibility is high, the check and problem positioning of the stored data are facilitated, and the troubleshooting of abnormal conditions such as data damage of the stored data is facilitated.

The invention discloses an abnormal data positioning method and device, equipment, a program product and a storage medium, belongs to the field of redundant arrays of independent disks, is used for positioning a disk where abnormal data is located in a stripe, and solves the problem that the disk where the abnormal data is located cannot be positioned. In consideration of the fact that in a target stripe with abnormal data, if a check chain with a zero calculation result exists, it is indicated that each business data block is normal, and at the moment, a disk corresponding to a check chain with a non-zero calculation result is a disk where the abnormal data is located, so that the target stripe with the abnormal data can be subjected to the non-zero calculation, and the abnormal data can be stored in the target stripe. According to the method and the device, the check chain calculation result of each check chain is determined, and if the check chain calculation result part is zero, the disk corresponding to the check chain of which the calculation result is not zero can be used as the disk where the abnormal data is located, so that the disk where the abnormal data is located can be efficiently and accurately positioned, the abnormal data can be conveniently recovered, and the user experience is improved.

The invention relates to a server disk RAID state monitoring method and device and a readable storage medium. The method comprises the steps that the health state of a battery backup unit is judged according to RAID hardware information; obtaining SMART attribute information to judge the health state of a server disk; obtaining the state of a server disk RAID array, reconstruction progress information and availability information of a hot spare disk so as to judge the performance of the server disk; when the RAID array has the degradation state, a fault disk corresponding to the degradation state in the RAID array is determined, reconstruction of the RAID array is automatically triggered, replacement operation of the fault disk is executed, and alarm information is sent to an upper computer; the RAID hardware information, the SMART attribute information, the state of the RAID array, the reconstruction progress information, the availability information of the hot spare disk and the position information of the fault disk are uploaded to a log file; and encrypting the log file by using an AES algorithm. The accuracy of the method for monitoring the RAID state of the server disk and the safety and reliability of the log file are improved.

The invention discloses a fault reconstruction method, device and equipment for a mechanical hard disk and a storage medium, and relates to the technical field of storage, and the method comprises the following steps: obtaining fault area information of a current fault hard disk in a disk array group; wherein the fault area information is information of a strip of a disk array group where a fault occurring in the current fault hard disk is located; the fault area information comprises a fault hard disk identifier and a fault strip identifier; determining a target reconstruction region corresponding to the fault region information; wherein the target reconstruction area is an area in the current mechanical hard disk; reconstructing data of a fault area in the current fault hard disk in the target reconstruction area, and recording a corresponding relation between the target reconstruction area and the fault area; reconstruction is still carried out on the faulty mechanical hard disk, a new disk does not need to be inserted, the reconstruction efficiency of the RAID group and the utilization rate of the faulty mechanical hard disk are improved, the cost is greatly reduced, and therefore the IO performance of a host is improved.

The invention discloses a processing analysis system and method based on information data storage, and relates to the technical field of information processing. Comprising an NAS server, a network switch and a computer group, the computer group is formed by connecting a plurality of computers with the network switch, the NAS server comprises an HDD hard disk array, a processor, an SSD read cache and an SSD write-in cache, the data storage mode of the HDD hard disk array is RAID10, the HDD hard disk array exchanges data with the computers in the computer group through the network switch, and the processor is connected with the SSD read cache and the SSD write-in cache. According to the method, the idle computer memory and the idle computer hard disk are used for balancing the continuous read-write requirement which cannot be met by the NAS server, the upper limit of the data read-write redundancy performance of the NAS server is improved, the computer memory and the computer hard disk are evaluated and graded, the data read-write redundancy performance of the NAS server is improved, and the storage capacity of the SSD read cache and the storage capacity of the SSD write cache are consistent. The read-write performance response speed outside the NAS server can be improved, and the read-write experience of the computer group is optimized.

The invention discloses a disk scheduling method, and relates to the technical field of storage systems, and the method comprises the steps: collecting a historical input / output access mode of a disk array card, the mode covering access information of a disk requested to be input / output in a historical time period, and generating a disk scheduling strategy adaptive to a business rule by using a pre-trained disk scheduling model; and meanwhile, monitoring the interface traffic of the disk array card in real time, calculating the bandwidth utilization rate of the disk array card according to the interface traffic, and dynamically adjusting the number of active and dormant disks in combination with a strategy. Therefore, the disk number and bandwidth allocation are flexibly self-adapted, the problems of bandwidth imbalance, burst load response delay and the like caused by rigid configuration in the traditional technology are effectively solved, and the service continuity and the system reliability are guaranteed.

The invention relates to the technical field of servers, and discloses a foreground task processing method and device for a disk array, equipment and a medium, and the method comprises the following steps: obtaining an operation range of a foreground task and a state interval of the disk array corresponding to the foreground task; according to the operation range and the state interval, a first identifier corresponding to the foreground task is obtained, and the first identifier is used for determining the state interval corresponding to the operation range; a second identifier of the disk array and third identifiers of all disks in the disk array are obtained, the second identifier is used for determining whether background tasks exist in the disk array or not, and the third identifiers are used for determining whether the disks are operated by the background tasks or not; and according to the first identifier, the second identifier and the third identifier, determining a care-over strategy of the foreground task, the care-over strategy being used for determining to use firmware or hardware to process the foreground task. According to the invention, the problems of frequent interaction between software and hardware and low IO task processing efficiency caused by transferring a large number of IO tasks to software for processing are solved.

The invention discloses a command execution method and device, equipment and a medium, and relates to the field of command processing, and the method comprises the steps: determining whether to update a current aggregation command based on an original read-write command or not by judging whether the original read-write command currently issued by a host meets a preset aggregation condition or not; wherein the preset aggregation condition comprises that the original read-write command and the current aggregation command correspond to the same target disk array card and have the same identification information; and if the original read-write command does not meet a preset aggregation condition or the updated current aggregation command meets a preset end condition, determining the number of logic blocks required by a full stripe based on the target disk array card, and splitting the current aggregation command so as to execute corresponding read-write operation on the target disk array card based on the split command. According to the method, the aggregation command is subjected to full stripe splitting, and the read-write operation is executed on the disk array card based on the split command, so that the read-write frequency of the disk in the disk array card can be reduced, and the read-write performance of the disk is improved.

The invention discloses a method for a substrate management controller to acquire and record hard disk positions and electronic equipment, and relates to the technical field of servers, and the method comprises the following steps: acquiring a hard disk logic view from a disk array card by establishing an out-of-band communication session, traversing each hard disk in sequence after ensuring that all hard disk positioning lamps are turned off, a mapping relation table of a hard disk logic identifier and physical slot position information is accurately established and persistently stored through an automatic closed-loop process of lighting on, querying a hard disk backboard monitoring module, recording a physical slot position and turning off, manual plugging and naked eye recognition are replaced, and automatic discovery and recording of the physical position of the hard disk are achieved; and slot position information is directly obtained through the hard disk backboard monitoring module, so that the accuracy of the corresponding relationship between logic and physical positions is ensured.

The invention discloses a block code determination method of a storage system and the storage system, and relates to the technical field of storage systems.The method comprises the steps that space distribution of a redundant array of the storage system is divided into a plurality of data sets with the total number of disks as the cycle period, and strip distribution modes of all the data sets in the cycle period are repeated; spatial distribution is strictly aligned on physical storage, spatial distribution optimization of the independent redundant array of the storage system is achieved, no matter whether the number of disks is an odd number or an even number, a uniform cycle period model is adopted, continuous read-write operation of the disk array is facilitated, a cache structure is queried according to a data group number, block numbers are returned if a cache is hit, and the cache structure is optimized. If not, the block number is dynamically calculated, and the calculation result is written into the corresponding position, so that the step of solving the block code is simplified. Through a cyclic period space distribution structure and a cache acceleration mechanism, the problem that block numbering calculation is complex and time-consuming in the prior art is solved, and the performance and universality of a storage system are remarkably improved.

The invention discloses a method and device for adjusting signal parameters of a transmission link and electronic equipment, and relates to the field of computers.The method comprises the steps that in the first starting stage of a server, under the condition that it is determined that the current performance state of a disk array card of the server is inconsistent with the theoretical performance state, the current performance state of the disk array card is not consistent with the theoretical performance state; and adjusting the signal parameter of the link where the disk array card is located as the target parameter. In a second starting stage of the server, reading a signal parameter of a target link where the disk array card is located; under the condition that the signal parameter of the target link is inconsistent with the target parameter, the signal parameter of the target link is adjusted to be the target parameter, and the second starting stage is after the first starting stage. According to the method, the performance of the disk array card is detected and the link parameters are adjusted in the two different starting stages, so that the performance of the disk array card is stable, the performance reduction of the server caused by the performance reduction of the disk array card is avoided, and the comprehensive performance of the server is improved.

The invention discloses a data recovery method and electronic equipment, and relates to the technical field of storage systems.The data recovery method comprises the steps that a virtual disk array is created according to virtual disks, and the virtual disks in the virtual disk array are divided into data disks and verification disks; writing the write-in data of the write-in request into a data disk, obtaining verification information according to the data written into the data disk, and writing the verification information into a verification disk; and if the abnormal data exists, performing data reconstruction on the abnormal data according to the data except the abnormal data in the virtual disk array and the verification information to obtain repaired data. The problems that a data error correction mode of a storage system is single, only underlying data processing abnormity can be sensed, but abnormal data cannot be recovered can be solved. According to the method, when any virtual disk in the virtual disk array has abnormal data, the abnormal data can be recovered and corrected by means of data reconstruction, and the data stability and data security of a storage system are guaranteed.

The invention discloses a disk capacity expansion method and device, equipment and a storage medium, and relates to the technical field of storage, in the disk capacity expansion method, under the condition that a bad disk is detected during disk array capacity expansion, at least one original stripe before capacity expansion is determined according to an abnormal stripe containing the bad disk after capacity expansion; restoring the bad disk data element according to the check code in the original stripe and the normal data element in the original stripe to obtain a restored target data element; then determining a target stripe according to the restored target data element and the normal data element in the abnormal stripe; writing the target strip into a reserved area of any normal disk; and finally, under the condition that a preset migration condition is met, migrating the target strip stored in the reserved area to the expanded target disk array. According to the method and the device, on the premise of ensuring the data consistency of the RAID system, the continuous capacity expansion under the condition that the disk breaks down during the online capacity expansion of the RAID can be realized.

The invention discloses a disk array initialization method and a storage cluster, and relates to the technical field of computers, the disk array is divided into a plurality of particles, bitmap information is generated according to the position of each particle in the plurality of particles in the disk array and the initialization state, and the plurality of particles are correspondingly distributed to storage nodes in the storage cluster, therefore, the storage node executes the initialization operation on each particle according to the position information of the particle allocated in the bitmap information and the initialization state, the technical problem of low execution efficiency of the initialization task of the disk array in the related technology is solved, and the technical effect of improving the execution efficiency of the initialization task of the disk array is achieved.

The invention discloses a power supply control method of a hard disk array and electronic equipment, and relates to the technical field of server storage. The method comprises the following steps: acquiring hard disk starting power consumption in a server power-on stage; according to the hard disk starting power consumption, determining an initial starting number, simultaneously electrifying a plurality of hard disk groups which are initially started in the hard disk array, and obtaining first power consumption of the hard disk array; according to the first power consumption, the remaining hard disk groups in the hard disk array are powered on in batches, so that all the hard disk groups in the hard disk array are powered on; in a server operation stage, obtaining second power consumption of the hard disk array to construct a power consumption regulation and control model; and based on the power consumption regulation and control model and the power consumption tracking sequence, determining a target power supply current adjustment signal, so that the first logic device adjusts the power supply current of the hard disk array according to the target power supply current adjustment signal. Therefore, tracking and stable control of the power consumption of the hard disk array are realized.

The invention provides an address mapping method and device, a storage system, a program product and a storage medium, and relates to the technical field of storage. According to the method, a storage system receives an input initial logic block address and a disk array identifier at the same time, and can query the stripe size configured by a disk array corresponding to the disk array identifier, so that a stripe identifier is determined by utilizing the initial logic block address, the disk array identifier and the stripe size at the same time; and determining the stripe where the initial logic block address is located by combining the disk array identifiers and stripe sizes of different disk arrays. And then, the storage system can query stripe physical address information corresponding to the stripe identifier in a preset mapping table, and determine a physical block address corresponding to the initial logic block address according to the stripe physical address information. Therefore, different disk arrays can be arranged in the storage system, and the different disk arrays can correspond to scenes with different stripe sizes, so that the conversion efficiency of the initial logic block address is improved, and the data operation efficiency is improved.

The invention discloses an encrypted disk management method and device, equipment and a program product, and the method comprises the steps that a disk array drive program calls a first drive program to obtain disk configuration data and key management server configuration data, and the first drive program is an interface program between an encrypted disk and an operating system; the first driving program establishes network connection with the secret key management server based on the secret key management server configuration data; the first driving program calls a second driving program to send the disk configuration data to the secret key management server by using the network connection, so as to obtain a secret key of the encrypted disk from the secret key management server, the second drive program is a client drive program created based on a key management interoperability protocol.

The invention discloses a disk array data reconstruction method and device, equipment and a medium, and relates to the technical field of storage, and the method comprises the following steps: monitoring the running state of each disk array in a storage system, and judging whether a fault disk exists in each disk array based on the running state; if it is monitored that a fault disk exists in the target disk array, the capacity of the fault disk is determined, and a logic disk with the corresponding size is created from a free area of a preset physical disk based on the capacity; taking the logic disk as a hot spare disk, and establishing a binding relationship between the hot spare disk and the target disk array, so as to perform data reconstruction on the fault disk by utilizing the hot spare disk; after it is monitored that reconstruction of the fault disk is completed, the binding relation between the hot standby disk and the target disk array is removed, and the hot standby disk is recycled to update the free area of the preset physical disk. The hot spare disk resource can be dynamically allocated, and the disk utilization rate is improved.

The invention discloses a data access method and device, equipment and a medium, and relates to the field of data access, and the method comprises the steps that a disk array card inputs an access address sequence containing a current data block access address and a historical data block access address into a probability distribution prediction model, so as to add corresponding physical position information to each address in the sequence, extracting time features and spatial features of the added sequence, and determining fusion features based on the time features and the spatial features to predict access probability distribution of each data block in the disk array next time; and after accessing the data of the actual to-be-accessed data block from the local cache by using the current data block access address, determining a to-be-added data block and a to-be-eliminated data block from the disk array based on the actual to-be-accessed data block and the access probability distribution so as to update the local cache. According to the method and the device, the data is prefetched into the local cache, so that efficient access of the data is realized when a large number of concurrent requests are faced.

The present application relates to the technical field of computers, and discloses a data processing system and method, a device and a nonvolatile readable storage medium. In the present application, each CPU core group of a disk array is bound with a physical network interface card, a physical hard disk drive, and a physical memory which are exclusive and would not be found by other CPU core groups, thereby implementing the isolation and division of physical network interface card resources, physical hard disk drive resources and physical memory resources in the disk array; by means of a network device, any host establishes, with the exclusive physical network interface card of a single CPU core group among a plurality of CPU core groups, an exclusive communication link which would not be found by other hosts and other CPU core groups; therefore, a CPU core group (i.e., a die) and a host communicate with each other by means of an exclusive communication link, so that the host accesses the CPU core group and the bound physical hard disk drive and physical memory, without using cross-die access, thereby shortening access paths, saving computer resources, and improving access performance and access efficiency.

The invention discloses a metadata bitmap flashing method, which relates to the technical field of computers, and comprises the following steps: dividing a storage space of a disk array into at least two storage areas; a processing line program column is distributed for the storage area, the processing line program column comprises at least two processing threads, the processing threads and metadata bitmap areas of the storage area are in one-to-one mapping, and the metadata bitmap areas are used for storing metadata bitmaps of strips in the storage area; in response to metadata bitmap writing instructions for at least two target metadata bitmap areas of the storage area, processing threads corresponding to the target metadata bitmap areas are determined respectively, and data writing is executed on metadata bitmaps in the target metadata bitmap areas through the processing threads corresponding to the target metadata bitmap areas, the flash efficiency of the metadata bitmap can be improved.

The invention discloses a disk fault processing method and device, equipment and a medium, and relates to the technical field of computers, and the method comprises the following steps: when it is detected that an input / output operation of a target disk is subjected to read-write failure, storing target data of the input / output operation into a target cache region, and restarting the target disk; when it is detected that the target disk is in a reset state after being restarted, cached target data are read from the target cache area, and input and output operation is executed again based on the target data; and determining the reliability state of the target disk according to the cumulative number of read-write failures of the target disk, and adjusting the running state of the target disk in the disk array according to the reliability state. In conclusion, the storage performance of the disk array can be prevented from being reduced, and the data security of the disk array is greatly improved.

Systems and methods for selectively bypassing an external cache (EC) of a storage system are provided. In one example, when the EC backing storage device is saturated, reads bypass the EC and are completed via a redundant array of independent disks (RAID) subsystem of the storage system. One or more performance metrics for the EC backing storage device may be monitored to predict one or more saturation thresholds (e.g., in terms of latency and / or throughput). Based on this monitoring, tuning may be performed to drive utilization of the EC into a “knee region” of a performance (or response) curve of the EC backing storage device. For example, the depth of one or more request queues at the front-end of an EC lookup may be manipulated based on a current measure of saturation relating to the EC backing storage device to limit the number of in-flight reads pending for the EC.

The application discloses a kind of magnetic disk array data leakage detection method, product, equipment and medium, it is related to computer technical field, including obtaining audit log content information, data leakage detection of operating behavior is carried out to audit log content information, obtain first detection result;In the case where first detection result is no data leakage risk, the outgoing data packet generated by disk array system is acquired;Data leakage detection of data feature is carried out to outgoing data packet, and second detection result is obtained;In the case where second detection result is no data leakage risk, it is determined that data leakage does not occur in disk array system;In the case where first detection result is there is data leakage risk, and / or second detection result is there is data leakage risk, it is determined that data leakage occurs in disk array system, solve the technical problem that disk array data leakage detection accuracy is low, resource overhead is too large, reach the technical effect of improving detection accuracy, reduce resource overhead.

The utility model discloses a server expansion hard disk array, and belongs to the technical field of server hardware. The server extended hard disk array comprises an extended hard disk base, placing grooves are formed in the two sides of the top face of the extended hard disk base respectively, hard disk mounting bases are arranged in the placing grooves, wire clamping assemblies are arranged on the portions, located on the two sides of the hard disk mounting bases, of the extended hard disk base respectively, and each wire clamping assembly comprises a square frame. A square frame is installed on the outer wall of the extended hard disk base, a sliding block is slidably connected into the square frame, a rotating shaft is installed on one side of the sliding block, the sliding block is rotationally connected with a clamping base through the rotating shaft, wire grooves are formed in the two sides of the outer wall of the clamping base respectively, elastic gaskets are installed on the inner walls of the wire grooves, and a lead screw is rotationally connected into the square frame. One end of the lead screw is in threaded connection with one side of the sliding block.

Embodiments of the present application relate to a hard disk backboard control method and a computing device. The method comprises: in the case that a first device is an upper host device connected to a hard disk backboard, a CPLD on the hard disk backboard is switched to a pass-through backboard mode, the pass-through backboard mode is used to indicate that the hard disk backboard is used as a pass-through backboard to manage hard disks connected to the hard disk backboard by the first device, and the first device is a motherboard or a PCIe Switch interchanger connected to the motherboard; in the case that a second device is an upper host device connected to the hard disk backboard, the CPLD on the hard disk backboard is switched to a hard RAID backboard mode, the hard RAID backboard mode is used to indicate that the hard disk backboard is used as a hard RAID backboard to manage the hard disks connected to the hard disk backboard by the second device, and the second device is a redundant array of independent disks (RAID) card or a device with a RAID function. The same hard disk backboard can be adapted to two different modes without hardware modification, and the hard disk backboard can be compatible with the functions of the pass-through backboard and the hard RAID backboard.

In some aspects, a memory system is provided. The memory system may include a memory device and a memory controller. The memory device may include one or more dies each including a plurality of planes. Each of the plurality of planes may include a subset of pages to form a striping group in the one or more dies, and one word line of multiple word lines may be coupled to R strings in each plane to form R pages. The striping group may form J stripes. A ratio of J to R can be a value greater than 1 and less than 2. The memory controller may be coupled with the memory device and configured to receive data portions corresponding to the J stripes; generate J parity data portions based on the data portions; and control the memory device to store the J parity data portions.

The application relates to the technical field of storage, and particularly provides a data protection method in a disk array expansion state, a terminal and a storage medium, which comprises the following steps: calculating the size of an overlapping area of a disk based on expansion information of a disk array, the overlapping area being a data overlapping area before and after expansion; creating a backup area which is not smaller than the overlapping area on the disk; and backing up original data of the overlapping area to the backup area before expansion is performed. The application guarantees the data safety and stability in the disk array expansion process at a minimum cost.