Method for reducing energy consumption of server by using mixed storage of solid-state drive and mechanical hard disk

A technology of solid-state hard disk and mechanical hard disk, applied in the direction of data processing power supply, input/output to record carrier, etc., to achieve the effect of reducing power consumption, low power consumption, and improving work efficiency

Inactive Publication Date: 2012-09-12
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a gap between existing solid-state drives and trad

Method used

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  • Method for reducing energy consumption of server by using mixed storage of solid-state drive and mechanical hard disk
  • Method for reducing energy consumption of server by using mixed storage of solid-state drive and mechanical hard disk
  • Method for reducing energy consumption of server by using mixed storage of solid-state drive and mechanical hard disk

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with examples.

[0020] At present, many companies and institutions have large-scale data centers and use thousands of servers to process massive amounts of data. Most of the servers are equipped with mechanical hard disks as data storage media. These disks become one of the energy consumption of servers. An important part of. At the same time, because the data accessed by different service requests are usually stored in different locations on the disk, the repeated movement of the magnetic head back and forth also causes a waste of energy. By adopting the present invention, adding a solid-state hard disk as the storage layer of the mechanical hard disk in the original storage structure can greatly reduce the access frequency to the disk, greatly improve the efficiency of each disk read and write, and reduce unnecessary head movement. A typical data center is equipped with a large number of disks, so ...

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Abstract

The invention belongs to the technical field of operation systems of servers and particularly relates to a method for reducing energy consumption of a server by using mixed storage of a solid-state drive and a mechanical hard disk. The method disclosed by the inventing is specifically realized by the following steps: for a read request of disk data, looking up a read request of disk data from a solid-state drive buffer zone and a cache zone; if the read request is hit, directly returning back to avoid the read operation of the mechanical hard disk; for a read request of disk data, writing a write request of the disk into the solid-state drive buffer zone, then periodically writing back to the mechanical hard disk and sorting the write operation for the disk position before writing back to reduce the invalid motion of a magnetic head; and controlling operation parameters of the mechanical disk according to an actual work load and a data access mode and reducing the rotating speed of the mechanical hard disk during idle operation and even closing the mechanical hard disk, so as to further reduce invalid energy consumption. According to the method, the energy consumption caused by the mechanical hard disk can be reduced and the work efficiency of the server can be increased, and thus the integral energy consumption of the server system is reduced.

Description

technical field [0001] The invention belongs to the technical field of server operating systems, and in particular relates to a method for reducing server energy consumption by using a solid-state hard disk and a mechanical hard disk for mixed storage. Background technique [0002] In today's world, the total amount of energy storage is decreasing, while the total energy consumption in the world is increasing day by day, which makes energy-saving technology more and more attention. With the continuous development of science and technology, the popularity of computer servers is getting higher and higher, and its manufacturing cost is getting lower and lower, especially with the rapid development of cloud computing in recent years, major companies have launched their own data centers, which The server scale even reaches millions. The energy consumption of such a large number of servers is very high, so how to reduce the energy consumption of the servers has become an importan...

Claims

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Application Information

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IPC IPC(8): G06F1/32G06F3/06
Inventor 夏虞斌陈海波臧斌宇
Owner FUDAN UNIV
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