Disk data read-write method and system

Abstract

Embodiments of the present invention provide a disk data read-write method and system. The method comprises: receiving a read-write request, determining, according to the read-write request, disk data that needs to be read and written, and calculating a keyword in the disk data according to a preset hash algorithm, to obtain a hash value; searching a skip list for a storage node of the disk data in a cache according to the hash value; if the read-write request is a read request, reading the disk data from the storage node in the cache; and if the read-write request is a write request, storing the disk data into the storage node in the cache, and when a size of cache data, which is not written into a disk, in the cache is greater than a preset threshold value, writing all the cache data, which is not written into the disk, in the cache into the disk. Read and write times of the disk are effectively reduced, and a problem that an IO throughput capacity of the disk is low is resolved. Further, for a client, a problem of poor throughput capacity experience of the client is also improved efficiently.

Description

technical field [0001] The invention relates to the technical field of computer storage, in particular to a disk data reading and writing method and system. Background technique [0002] With the advent of the Internet era, a large amount of data is generated every day in all walks of life around the world, including personal data. In order to collect and manage these data, some large Internet companies or other companies that generate large amounts of data have to With the establishment of public or private data centers, the traditional storage model can no longer meet the explosive growth of data, and each enterprise building a data center will cause a huge waste of resources. Cloud storage technology came into being in this context. [0003] Cloud storage is a new concept extended and developed from the concept of cloud computing. It is an emerging network storage technology. It is a system in which various types of storage devices work together through application softw...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a disk data reading and writing method and system to solve the limitation of the physical index of disk IOPS in the prior art, and the maximum number of input and output IOs allowed per second of each disk is about 100 times In this way, the order and potential of the hardware cannot be utilized, and most of the time is wasted on disk seeks, resulting in low IO throughput of the disk and poor throughput experience of the client.

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