17 results about "Logical disk" patented technology

The invention provides a hard disk monitoring method, device and equipment and a medium, which are applied to the technical field of storage, and the method comprises the following steps: acquiring a user command for a target hard disk; wherein the user command carries first identification information of the target hard disk, the first identification information is a physical drive letter, an address code or a logic drive letter, and the address code comprises a bus number, a device number and a function number; under the condition that a target instruction corresponding to the user command needs second identification information of the target hard disk, the second identification information corresponding to the first identification information is determined based on a preset corresponding relation, and the preset corresponding relation is a corresponding relation among a physical drive, an address code and a logic drive of the target hard disk; the first identification information and the second identification information are different types of identification information, and calling the target instruction based on the second identification information to obtain state information of the target hard disk or configure the target hard disk. Therefore, the complexity of hard disk monitoring management can be reduced, and the operation and maintenance efficiency can be improved.

The invention relates to a data access method, system and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the steps of reading metadata corresponding to multiple pieces of data from a logic disk in a metadata access domain in response to access requests of the multiple pieces of data, determining logic disk addresses of the multiple pieces of data in the data access domain according to the metadata, and accessing the multiple pieces of data according to the logic disk addresses. Wherein the logic disk in the metadata access domain and the logic disk in the data access domain are obtained by logically dividing all physical disks in the storage system. By adopting the method, the metadata access throughput can be improved, so that the performance of a storage system is improved.

The invention discloses a hard disk information management system and a hard disk information management method, relates to the technical field of servers, and provides a hard disk module comprising a first hard disk unit for connecting a first type of hard disk and a second hard disk unit for connecting a second type of hard disk for a scene of mixed insertion of different hard disks. The hard disk information management system can dynamically generate a logic disk sequence through the first type of hard disk which cannot be directly monitored by the controller, the controller receives the logic disk sequence sent by the starting module and obtains physical information of the hard disk connected to the hard disk module, and the logic disk sequence and the physical information can be associated through the controller so that the logic disk sequence and the physical information can be associated. Therefore, the mapping relation between the logic disk sequence and the physical information is obtained, according to the mapping relation, the controller can rapidly position the physical information of the hard disk needing to be managed, accurate and rapid association of the logic disk sequence and the physical information of different types of hard disks is achieved through dynamic association, and efficient management of the hard disk is achieved.

This invention relates to the field of data processing and discloses a database log archiving method, apparatus, device, and medium, comprising: identifying a target redo log file to be archived from the database; creating a preliminary redo log file with the same attributes as the target redo log file and empty content within the same logical disk as the target redo log file; moving the target redo log file to a preset archiving directory located within the same logical disk via MV operations; changing the filename and storage path of the preliminary redo log file to the original filename and storage path of the target redo log file via MV operations; and mounting the revised preliminary redo log file to the database. This invention solves the problems of high I / O consumption and low archiving efficiency in existing database log archiving technologies.

This invention provides a controller and storage device that can suppress data loss even when reconfiguring storage media in a RAID configuration. [Solution] The controller of this embodiment is a controller that reads and writes common data to the first and second physical disks to configure a logical disk, and is capable of executing disk input / output requests to the first and second physical disks in response to disk input / output requests to the logical disk received from a host computer. This controller includes, for each of the first and second physical disks, an area setting unit that sets a data area to be the target of disk input / output requests and a spare area on which data recorded in the data area can be recorded; a monitoring unit that monitors the status of each of the first and second physical disks; and a maintenance processing unit that, if an error in the first physical disk is detected as a result of monitoring by the monitoring unit, writes the data in the data area of ​​the first physical disk to the spare area of ​​the second physical disk.

The invention relates to a logic disk array allocation method and device for a high-performance computing environment, equipment, a storage medium and a program product, and the method comprises the steps: obtaining the redundancy capability of a logic disk array corresponding to a disk when the state change of the disk in a system is detected, and then determining a ratio updating strategy according to the redundancy capability and the state change, and updating the current logic block ratio of the logic disk array according to the ratio updating strategy to obtain a new logic block ratio, and finally redistributing the logic blocks of the logic disk array according to the new logic block ratio. Wherein the state change comprises a disk fault or a new disk. According to the method, the proportion updating strategy is dynamically determined and executed according to the disk fault or different newly added state changes in combination with the redundancy capacity of the current logic disk array, so that the storage system can flexibly cope with various actual scenes, and the reliability and continuity of user services are greatly improved.

The method comprises the following steps: determining the association link between each logical disk and physical disk in a storage system; acquiring the mapping relationship between each node in the association link corresponding to the logical disk; performing health examination on each node in the association link, and when the health examination result of a target node is abnormal, outputting the position information of a target logical disk corresponding to the target node and the position information of a target physical disk based on the mapping relationship between each node. The technical solution can comprehensively check the disk, and the output result can indicate the service party to isolate the fault of the service on the target logical disk, and indicate the operation and maintenance personnel to repair and replace the target physical disk, so as to realize the effective linkage of service processing and disk repair, and realize the rapid processing of disk faults.

The invention discloses an XFS file system storage optimization method and system capable of achieving RAID automatic alignment. The method comprises the steps that the stripe size and the number of data disks of specified block equipment are obtained from RAID configuration; determining a corresponding XFS file system formatting parameter according to the strip size and the number of the data disks; creating and formatting an XFS file system logic disk according to the determined XFS file system formatting parameter; executing automatic mounting configuration for the XFS file system logic disk to realize automatic mounting after the equipment is restarted; mounting an XFS file system logic disk; and verifying the alignment state of the mounted XFS logic disk and outputting a verification result. According to the method, the parameters of the file system are automatically adjusted based on the configuration parameters of the RAID, seamless cooperation of the file system and the storage hardware is achieved, and therefore manual configuration errors are avoided, and the storage performance is improved.

This application discloses a hard disk information management system and a hard disk information management method, relating to the field of server technology. Addressing scenarios where different types of hard disks are mixed, it provides a hard disk module including a first hard disk unit for connecting a first type of hard disk and a second hard disk unit for connecting a second type of hard disk. The hard disk information management system can dynamically generate a logical disk order for the first type of hard disk that the controller cannot directly monitor. The controller receives the logical disk order sent by the boot module and obtains the physical information of the hard disks connected to the hard disk module. Through the controller, the logical disk order and physical information can be associated to obtain a mapping relationship between the logical disk order and physical information. Based on the mapping relationship, the controller can quickly locate the physical information of the hard disk to be managed. Through dynamic association, accurate and rapid association between the logical disk order and physical information of different types of hard disks is achieved, enabling efficient management of the hard disks.

This application relates to a data storage method, apparatus, device, storage medium, and program product. The method, upon receiving a service request, allocates multiple logical partitions on a logical disk and multiple target flash memory wafers on a physical disk for the service request. Then, it writes the data of the service request to the multiple logical partitions and stores the data from the multiple logical partitions to the multiple target flash memory wafers according to their stress status. In this method, by dynamically allocating logical partitions for service requests, it can better adapt to the diversity and dynamism of workloads, meet the performance needs of different users, and maximize the utilization of physical disk bandwidth by monitoring the wafer stress status in real time to guide wafer selection, thereby greatly improving data storage efficiency.

The invention discloses a data processing method, electronic equipment, a storage medium and a computer program product.The method comprises the steps that the number N of logic disks is determined according to the number of computing nodes in a storage system, and N is a positive integer; generating N logic disks; generating one or more replica sets based on the N logic disks, wherein each logic disk in the N logic disks has a corresponding relationship with one replica set. Through the method and the device, the replica set can be generated according to the logic disk, so that the flexibility of the replica set is improved.

When a large volume of abnormal data is supplied, this system quickly and accurately detects the abnormal supply and protects the normal data. [Solution] A duplicate redirect table is generated by duplicating a redirect table that stores location information indicating the location of a storage area that stores the actual data to be read and written via a logical disk, in the order of the data sequence on the logical disk. One of the multiple duplicate redirect tables is used as the source for comparison, and one of the duplicate redirect tables generated after the source is used as the target for comparison. Based on the frequency of occurrence of words in the differential data, which is data stored in the storage area indicated by location information in the target that does not match the location information in the source, and a predetermined frequency threshold, it is determined whether or not a predetermined protection process should be performed when writing to the logical disk.

The application provides a redundant array of independent disks (RAID) reconstruction method and device. When a fault disk is reconstructed, P target hot spare disks are selected to reconstruct a specified fault disk in the RAID. A logical disk for reconstructing the fault disk is created and divided into P subspaces. The space of the fault disk is divided into P subspaces. According to the corresponding relationship between the subspaces of the fault disk and the logical disk and the corresponding relationship between the subspaces of the logical disk and the mapping spaces of the target hot spare disks, the fault disk is reconstructed into each target hot spare disk in parallel. It can be seen that the technical solution provided by the embodiment does not reconstruct the fault disk into one selected hot spare disk according to the form that one fault disk corresponds to one hot spare disk, but selects multiple target hot spare disks at the same time and reconstructs the fault disk into the multiple selected target hot spare disks in parallel, so as to shorten the fault disk reconstruction time, improve the reconstruction efficiency of the fault disk in the RAID, and improve the reliability of the data in the RAID.

The invention provides a magnetic attraction queue type multi-substrate continuous manufacturing method, and relates to the technical field of additive manufacturing automation and production organization. By constructing a logic disk queue and establishing a mapping relationship with a plurality of physical disk positions, multi-task ordered scheduling is realized; coordinate mapping parameters are dynamically updated based on printing disc pose detection, a manufacturing task path is converted to an equipment global coordinate system, and high-precision machining is achieved; after the task is completed, safety avoiding, interlocking checking and automatic disc pushing are executed, and in-place confirmation is carried out during switching; the system also has abnormal monitoring and fault-tolerant processing capabilities. According to the method, efficient, robust and unmanned continuous manufacturing of desktop-level equipment is achieved, the equipment utilization rate and the first-layer printing success rate are remarkably improved, and the method is suitable for a small-batch multi-variety rapid manufacturing scene.

The application relates to the technical field of cloud computing, in particular to a cross-region data scheduling method and device, equipment and a storage medium, which are used for solving the problems of low business request processing efficiency and unguaranteed business continuity in the prior art. The method comprises the following steps: obtaining target information of each data center based on a request operation type contained in a business request sent by a client; and determining and sending data plane interface information of a target data center corresponding to the business request to the client based on data description information of to-be-transmitted data contained in the business request and the target information, wherein the target information comprises at least one of metadata information and state information, the metadata information represents stock data description information of each logical disk unit contained in any data center, and the state information represents running state description information of any data center; thus, the business request processing efficiency is improved, and the continuity of the business is guaranteed.

This invention discloses a data reading method, apparatus, electronic device, and storage medium. The method includes: in response to a logical disk repair request for a logical disk to be repaired, determining a target node associated with the logical disk to be repaired, and pre-reading initial metadata from the target node to a first target location including target memory to obtain current metadata; pre-reading initial copy data from the target node to a second target location including a target solid-state drive based on the current metadata to obtain current copy data; and reading the current copy data according to the logical disk repair request to write the current copy data to the logical disk to be repaired. By implementing the technical solution provided by this invention, the problem of reading normal copy data stored in a slower-processing location on other nodes for repair when a logical disk is damaged can be solved, thus reducing the efficiency of subsequent damaged logical disk repair. This achieves the beneficial effect of improving the efficiency of reading normal copy data.

Systems and methods for scaling application and / or storage system functions of a distributed storage system based on a heterogeneous resource pool are provided. According to one embodiment, the distributed storage system has a composable, service-based architecture that provides scalability, resiliency, and load balancing. The distributed storage system includes a cluster of nodes each potentially having differing capabilities in terms of processing, memory, and / or storage. The distributed storage system takes advantage of different types of nodes by selectively instating appropriate services (e.g., file and volume services and / or block and storage management services) on the nodes based on their respective capabilities. Furthermore, disaggregation of these services, facilitated by interposing a frictionless layer (e.g., in the form of one or more globally accessible logical disks) therebetween, enables independent and on-demand scaling of either or both of application and storage system functions within the cluster while making use of the heterogeneous resource pool.