Data writing optimization method

Abstract

The present invention discloses a data writing optimization method. The method comprises the following steps that (1) a system is initialized; (2) when the client needs to write data, a metadata management node is requested to obtain metadata information firstly, and the metadata management node selects a specific storage node according to a load balancing algorithm, generates metadata information, and returns the response to the client, and after receiving the metadata information, the client directly sends data to the data storage node; and (3) the data storage node is started and creates the write data thread, and the write data thread selects a write disk according to the load balancing algorithm, returns the response to the client after successful writing, and informs the metadata management node to update the metadata information. The method disclosed by the present invention has high reliability and multi-copy of data, and that the whole system crash due to the failure of a data storage node cannot occur; and the method has high scalability, and as the central control component, the metadata management node dynamically divides all loads into the data storage node, so that the data is easy to be extended, upgraded and replaced.

Description

technical field [0001] The invention relates to the technical field of disks, in particular to a data writing optimization method aiming at disk performance bottlenecks. Background technique [0002] In the prior art, the rotational speed of the mainstream hard disk has stayed at 7200RPM for many years. Except that the disk capacity can continue to increase, the performance of other aspects has not been effectively improved. The more sectors read by the magnetic head per unit time, the better the performance. The improvement of disk performance can only be achieved by increasing the speed and increasing the track density of the disk. The speed of mainstream hard drives is almost impossible to break through at 7,200 rpm. If it is above 10,000 rpm, not only the cost of the hard drive will increase a lot, but also the heat and noise will also increase a lot, and it is also very difficult to increase the track density. Contents of the invention [0003] The technical problem ...

AI Technical Summary

Problems solved by technology

The speed of mainstream hard drives is almost impossible to break through at 7200 rpm. If it is above 10,000 rpm, not only the cost of the hard drive will increase a lot, but also the heat and noise will also increase a lot. It is also very difficult to increase the track density.

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