Efficient fault-tolerance method for storage mediums
A storage medium and high-efficiency technology, applied in the direction of response error generation, error detection/correction, redundant code for error detection, etc., can solve problems such as uncorrectable, data and check mismatch, and data storage on disk. To achieve the effect of highlighting substantive features, reliable design principles, and wide application prospects
Inactive Publication Date: 2017-12-15
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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Problems solved by technology
If failures such as power outages and system crashes occur during the writing process, the data stored on the disk and the checksum will not match. If there is no good log or snapshot mechanism for recovery, the wrong data will always be stored on the disk. up without correction
[0004] Finally, traditional raid construction is limited by the number of hard disks. In the era of rapid increase in data capacity, it cannot meet the needs of enterprises for unified and flexible allocation of resources. more and more powerless
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[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0022] combine figure 1 , the present invention provides the following technical solutions:
[0023] An efficient fault-tolerant method for a storage medium, comprising the following steps:
[0024] The file system interface layer encapsulates all write operations, including metadata and actual data, into transactions, and puts multiple write operations into one transaction. The transaction will not be written to the physical hard disk immediately, but will be collected and put into a transaction group , and finally write to the hard disk synchronously or asynchronously.
[0025] In this embodiment, the writing operation in step S1 includes metadata and actual data.
[0026] The writing operation in the ...
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The invention relates to an efficient fault-tolerance method for storage mediums. The method is characterized by comprising the following steps that a file system interface layer encapsulates all write operation into an affair; the affair is collected into an affair set; the affair set is written into a hard disk in a synchronous or asynchronous mode. Checksum of a target block, which is verified again during reading, is added into each block pointer to ensure real-time verification during copy of data; an affair copy-on-write model is created to ensure integrity of the data.
Description
technical field [0001] The invention belongs to the field of data storage fault tolerance, and in particular relates to an efficient fault tolerance method for a storage medium. Background technique [0002] As a mature and reliable data protection standard for disk systems, raid technology has existed as the basic technology of storage systems since its birth. However, in recent years, with the rapid growth of data storage requirements and the continuous emergence of high-performance applications, traditional raid has gradually More and more problems are exposed. [0003] First of all, in order to meet the demand of data growth, disk device manufacturers continue to improve technology to increase the storage density per disk unit. When these high-capacity disks need to be reconstructed due to a disk failure, the reconstruction process will occupy system resources, resulting in a decrease in the overall performance of the application system. When the traditional reconstruc...
Claims
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Login to View More IPC IPC(8): G06F11/10G06F11/14
CPCG06F11/1004G06F11/1076G06F11/1446
Inventor 李萌孙超陈乃阔王振群李丽
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD