A cloud storage data node device

Abstract

The invention discloses a cloud storage data node apparatus, relates to the technical field of cloud storage, and aims at improving the data writing performance of a cloud storage system. The cloud storage data node apparatus provided by the embodiment of the invention comprises a service module, a virtual memory disc, a memory management module comprising multiple memory management units, a monitor, and at least one storage disc. The memory management module is used for respectively recording using states of corresponding buffer memory spaces in the virtual memory disc through the memory management units, and allocating the memory management units for the data sent by a client. The service module is used for receiving the data sent by the client, and writing the data in the corresponding buffer memory spaces according to the memory management units allocated by the memory management module. The monitor is used for monitoring using states of the memory management units in the memory management module, and instructing the storage disc to acquire the data from the virtual memory disc and store the data when preset conditions are met.

Description

technical field [0001] The present invention relates to the technical field of cloud storage, in particular to a cloud storage data node device. Background technique [0002] The process of the client writing data to the cloud storage data node is essentially the process of the client writing data to a certain hard disk. Existing cloud storage data writing is mainly based on the cache of the operating system, directly using the system interface for data writing operations, and using the cache of the operating system to implement data cache management and data flushing to disk operations. When the client needs to write more data to the cloud storage data node, it will happen that many requests are sent to the disk of the data node at the same time to request to write data, which results in a large number of random disks on a single disk. The write operation phenomenon, and a large number of random write operations will make the write performance provided by the disk drop sha...

AI Technical Summary

Problems solved by technology

[0003] To sum up, in the existing technology, when there are a large number of clients continuously writing to the cloud storage data nodes, the writing performance of the cloud storage system will be reduced, and a large number of file fragments will be generated at the same time, which in turn will lead to a decrease in the performance of the cloud storage cluster. Difference

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