Research On Energy-saving Data Layout Adaping To Dynamic Load

With the rapid development of contemporary science and information technology,there has been an explosive growth of data,the scale of storage devices has grown rapidly.High-energy-consuming storage devices have become a serious problem in data centers.The study of energy-saving devices for storing data becomes more and more important.Continuous data storage has become more and more widely used in recent years.Since these storage systems are mainly based on sequential data access,for the random performance and bandwidth,the requirements are not high;however,the requirements for data reliability and storage space are high;and the load is mainly based on write operations.Taking full consideration of the above factors of continuous data storage system.The article is devoted to energy-related research on data layout and disk scheduling,finding out the most suitable energy-saving layout for data storage,and improving methods to reduce the energy consumption of the storage system as effectively as possible.Based on the original relevant energy conservation research,the article systematically introduces energy conservation in the following points:(1)The theoretical knowledge of storage technology is introduced,and the internal structure,performance indicators,and energy consumption characteristics of current mainstream storage media disks and solid-state disks are analyzed.The typical structure that appears in the course of RAID and its reliability development is described in detail.(2)Based on the traditional S-RAID,we proposed an energy-saving data layout suitable for dynamic load or sudden load based on: ADL-RAID(Adapted to Dynamic Load based on Redundant Array Independent Disks).ADL-RAID still continues S-RAID locality in the data layout,adopts the parallel access energy-saving strategy,when writing data,according to the load demand sent by the upper application,it will adjust the number of parallel disks according to the change of the load,making the disk Maximum utilization of parallel performance.Experiments show that under the condition of meeting performance requirements and single-disk fault tolerance,ADL-RAID has obvious advantages over fixed-group S-RAID.Its energy consumption is reduced by 33.6% compared with S-RAID5,and at the same time,with sequential write requests of 100%.,write performance increased by 34.3% over S-RAID5.(3)Describes the implementation of ADL-RAID in detail,including the distribution of basic data,dynamic mapping of space,perception of performance requirements,proposes an avoidance strategy for the occurrence of spatial conflicts,and proposes a creative approach to space waste in the implementation of avoidance strategies.Space optimization strategies and so on.