161 results about "Disk array" patented technology

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 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 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 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 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 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.

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.

The application provides a hard disk health monitoring method and device, electronic equipment and storage medium, and belongs to the technical field of computers. The method comprises the following steps: obtaining hard disk related information of a server, wherein the hard disk related information comprises a model configuration file corresponding to the server, information of a redundant array of independent disks card of the server, hard disk backplane information of the server, and hard disk information of all hard disks of the server; performing slow disk detection on each hard disk of the server based on the hard disk information; performing sub-health detection on each hard disk of the server based on the information of the redundant array of independent disks card and the hard disk information; in the case that a target hard disk is detected to be in a slow disk state or a sub-health state, issuing a prompt information, and based on the model configuration file and the hard disk backplane information, lighting up a fault light of the target hard disk, so as to realize automatic health monitoring of the hard disks assembled in the server, and improve the universality, implementability, accuracy and positioning of the server hard disk health monitoring.

The invention relates to a control method and device for a disk array, and belongs to the technical field of new generation information technology industries. In thread pool parallelization, a serial verification step is divided into a plurality of independent tasks, the independent tasks are executed in parallel by different threads, and parallel verification is performed through a thread pool, so that the total delay is reduced, and the requirements of a high-priority module are met; thread blockage and resource competition are avoided, and thread safety of task distribution and result processing is ensured; the DMA transmission mode and the verification type are adjusted according to the request priority, hardware changes such as disk faults and bandwidth fluctuation can be responded through dynamic selection of the DMA transmission mode and the verification type, the real-time performance and the resource utilization rate are balanced, the switching overhead is reduced through thread pre-binding, and the safety is improved through multi-dimensional verification.

Embodiments of the present disclosure provide an abnormal data processing method and device, a storage medium and an electronic device, and relate to the technical field of computers. The method comprises: in response to an abnormal processing request, obtaining information of a disk array; determining the number of check disks according to the information of the disk array, and determining a processing strategy according to the number of check disks; the number of check disks in the disk array is different, and the processing strategy adopted is different; the number of check disks is greater than the number of error correction check disks adopted in the processing strategy; and abnormal data positioning and abnormal data recovery are performed on the abnormal strip according to the processing strategy. In this way, different processing strategies are used to perform abnormal data positioning and recovery on the abnormal data disk and / or check disk in the strip.

The invention discloses a disk array data leakage detection method, a product, equipment and a medium, and relates to the technical field of computers, and the method comprises the following steps: obtaining audit log content information, and carrying out data leakage detection of an operation behavior on the audit log content information to obtain a first detection result; under the condition that the first detection result is that the data leakage risk does not exist, obtaining an outgoing data packet generated by the disk array system; performing data leakage detection of data features on the outgoing data packet to obtain a second detection result; under the condition that the second detection result is that the data leakage risk does not exist, determining that the disk array system does not have data leakage; under the condition that the first detection result shows that the data leakage risk exists and / or the second detection result shows that the data leakage risk exists, it is determined that data leakage happens to the disk array system, and the technical problems that disk array data leakage detection is low in accuracy and too large in resource overhead are solved; the technical effects of improving the detection accuracy and reducing the resource overhead are achieved.

The invention discloses an intelligent management method, system and device for disk data, and the method comprises the steps: analyzing the data storage condition of all first data currently stored by a target system, the data storage condition comprising at least two data storage demands and a demand proportion corresponding to each data storage demand; each data storage demand is used for indicating a storage demand of data for data security and read-write speed; for each target disk included in the target system, performing partition operation and array construction operation on the target disk in sequence according to the data storage condition to obtain a partition and array construction result comprising at least one partition and a disk array tag corresponding to the partition for the target disk so as to update the target disk; each updated target disk is used for executing partition-based read-write operation on the to-be-processed data. It can be seen that by implementing the method, multiple array modes can be compounded in the disk, and the data storage flexibility, pertinence and accuracy of the disk are improved.

The application discloses a kind of management method, device, equipment and program product of disk array, wherein the method comprises: first program running in first kernel creates corresponding domain path for target group disk, and under the condition that domain path creation is determined to be completed, first notification message is sent to volume management driver running in the first kernel;The volume management driver responds to the first notification message, and sends second notification information to disk driver running in second kernel, and the second notification information is used to notify the disk driver to scan;The disk driver responds to the second notification information, and under the condition that the target disk group is scanned, third notification information is sent to equipment management program running in third kernel, so that the equipment management program responds to the third notification information, and the creation of the target disk group corresponding disk array is completed.

The invention discloses a method and system for improving RAID1 writing performance under a Linux system, and the method comprises the steps: mirroring a main IO request into a corresponding number of sub IO requests when the main IO request sent by an upper layer enters an RAID1 disk array, and transmitting the sub IO requests to each disk; initially marking the completion state of the sub IO request as an uncompleted state, and initially marking the notification state of the main IO request as a non-notification completion state; and each disk executes the corresponding sub IO request and marks the completion state of the sub IO request of the current disk as a completion state when the execution is finished, and informs the RAID1 disk array of completion of the main IO request in advance. The method aims at solving the problem that IO burr problems are overlapped and amplified in the RAID1 full flash memory array due to a synchronous write-in strategy adopted by an RAID1 write-in mechanism of a Linux kernel, and the write performance of the RAID1 full flash memory array is improved.

The embodiment of the invention relates to a method, equipment and a computer program product for writing data into a disk array in a storage system. The storage system includes a disk array. A method includes, in response to receiving a write request to write new data to a data block in at least one disk array group in a degraded mode of a disk array, reading old data stored in the data block and old check information stored in a check block associated with the data block. The method further includes determining new check information associated with the new data based on the old data, the old check information, and the new data. The method further includes writing the new data and the new check information into at least one cache page provided by a cache component in the storage system, the at least one cache page being allocated in a persistent memory in the cache component. In addition, the method further comprises the step of flushing new data and new verification information into the data blocks and the verification blocks in the at least one disk array group respectively.

This application relates to a clustered storage system, an upgrade method, a computer device, and a storage medium. The clustered storage system includes a file system and multiple nodes. The file system includes a disk array and redundant disks. A primary system space and a backup system space are established in the disk array. Both the primary system space and the backup system space store an operating system. Each node is a storage controller. All storage controllers share the operating system of the primary system space or the operating system of the backup system space. The storage controller includes a boot system. The boot system is used to boot the storage controllers of one or more nodes to the operating system of the primary system space or the operating system of the backup system space. The primary system space and backup system space based on the disk array improve the stability of the clustered storage system. The operating system upgrade method using the clustered storage system improves the upgrade efficiency of the operating system.

The embodiment of the invention discloses a data processing method and a computing device, and the method does not store a short address in an RAID (Redundant Array of Independent Disks) card, so that the storage overhead of the RAID card can be effectively reduced. The method comprises the steps that an RAID card obtains a first host memory address from a host, when the sum of the length of the first host memory address and the length of out-of-band information is smaller than or equal to the length of an address field, the RAID card generates a second host memory address comprising the first host memory address and the first out-of-band information, the second host memory address is sent to a hard disk array, and the first out-of-band information is sent to the hard disk array; and after receiving a direct memory access operation sent by the hard disk array, executing the direct memory access operation on the memory of the host according to a second host memory address in the direct memory access operation.

This invention discloses a RAID remapping method, comprising the following steps: obtaining the position of each data block constituting the data to be remapped on the RAID disk array; determining the disk where each data block resides based on its position on the RAID disk array; reading a plurality of corresponding data blocks from each disk; and sequentially placing the plurality of data blocks read from each disk into a page table in memory according to the disk number. This invention also discloses a system, a computer device, and a readable storage medium. The proposed solution calculates the actual data page size of each disk and, when reading and writing data to each RAID disk according to stripes, performs reading and writing according to the actual data size in the stripe size of each RAID disk and in page table address order.

The application discloses a disk array expansion method and device, electronic equipment and medium, and relates to the technical field of computers. The method comprises the following steps: determining a corresponding stripe set of a to-be-generated stripe in a post-expansion disk array in a pre-expansion disk array according to a preset expansion rule; in the case that there is an abnormal disk in the pre-expansion disk array, reading data corresponding to a first type of data block in the stripe set from the pre-expansion disk array; obtaining data corresponding to a second type of data block in the to-be-generated stripe based on data corresponding to all first type of data blocks; and writing the data corresponding to all second type of data blocks in the to-be-generated stripe into the disks corresponding to the second type of data blocks in the post-expansion disk array respectively, so as to complete the expansion of the pre-expansion disk array. Through the application, the expansion can be continuously performed in the case of disk abnormalities.

The utility model provides a disk array device which comprises an array cabinet connected with a server, one side of the array cabinet is hinged with a cabinet door, a plurality of partition plates are fixed in the array cabinet, air ducts are arranged in the partition plates, an air blower is arranged on the array cabinet, a plurality of fixing plates are fixed in the array cabinet, damping blocks are arranged on the fixing plates, and the damping blocks are arranged on the fixing plates. A positioning plate is arranged on the damping block, a sliding plate is arranged on the positioning plate, a plurality of fixing structures are arranged in the array cabinet, and an auxiliary heat dissipation structure is arranged on the partition plate. According to the utility model, the auxiliary heat dissipation structure is arranged on the partition plate, the air duct is arranged in the partition plate, and the air blower is arranged on the array cabinet, so that a better ventilation and heat dissipation effect can be achieved, and a poor heat dissipation effect caused by the use of a plurality of disk arrays can be prevented; the damping block is arranged on the fixed plate, the positioning plate is arranged on the damping block, and the sliding plate is arranged on the positioning plate; the magnetic disk can be installed and fixed, and a certain damping effect can be achieved.

The invention provides a distributed storage collaborative optimization method and device, electronic equipment and a storage medium, and relates to the technical field of computer storage. Mapping the virtual disk into a logical volume of the distributed storage system, constructing dual redundancy protection by adopting a multi-replica redundancy strategy based on the logical volume, and when a single physical hard disk in the virtual disk generates a slow disk or a fault, initiating and executing a data reconstruction operation in the storage node by a disk array controller. The problems that in the prior art, due to the fact that traditional distributed storage depends on a multi-copy redundancy mechanism, large-scale data reconstruction is triggered by single-disk faults, disk I / O pressure is dramatically increased, operation and maintenance complexity is high, performance and reliability are contradictory, and fault processing efficiency is low due to immature collaborative optimization of hardware RAID and distributed storage can be solved.

The application provides a data writing method, a storage system and a server, and relates to the technical field of data storage. The method is used for a storage system, the storage system comprises a disk array and a disk array card, the disk array card comprises a cache, and the disk array is divided into a plurality of strips. In the method, after receiving a write request, if the write request involves a target writing mode, such as read-modify-write or reconstruction write, it is first determined whether the target data is stored in the cache. If the target data is stored in the cache, the target data stored in the cache is used to write the to-be-written data into a target strip in the target writing mode. Since the target data stored in the cache is directly used to write the to-be-written data into the target strip in the target writing mode, when the write request involving the target writing mode is executed, the target data does not need to be read from the disk array, which helps to improve the read performance in the read-modify-write mode, thereby improving the write performance of the write request and further improving the write performance of the storage system.

Provided in the present application are a disk array card monitoring method, a computer program product, and a device and a medium. The method comprises: in response to a server being powered on, establishing a management component transport protocol network between a baseboard management controller and PCIe devices; identifying whether there is a monitorable disk array card in the PCIe devices included in the management component transport protocol network; in response to the identification that there is a monitorable disk array card in the PCIe devices included in the management component transport protocol network, triggering the baseboard management controller to start a disk array card monitoring thread, and issuing a target monitoring command to the identified monitorable disk array card, wherein the target monitoring command is a command defined on the basis of a communication protocol of a standard data model; and by means of the baseboard management controller, acquiring disk array card data that is fed back by the monitorable disk array card and matches the target monitoring command, so as to realize monitoring of the disk array card. An efficient, real-time, compatible and easily managed disk array card monitoring method is provided.