Research And Construction Of High Performance Storage Uninterrupted Service System

With the development of cloud computing,big data and other emerging technologies and hot industries,the construction of information system has higher requirements for the reliability and performance of information storage.Take the big telecom operators for example,storage array in the actual application of the high reliability and high availability of type,the prototype SAN network deployment application accounts for larger proportion.At present,the basic use of the storage array disks is achieved through the RAID(independent redundant disk array)technology,which can effectively improve IO processing capacity on existing interface types and disks,satisfying the requirements of information storage on data reliability and availability.Compared to the traditional cold and hot backup,the Active-Active system can evolve from Active-Standby mode into two active systems are running together,and the data is backed up by each other,it also keeps at least one device running in a disaster situation,and multiple devices could run together to improve performance and efficiency in the daily operating situation.At present,the Active-Active system that mainly applied in the data center level is network Active-Active,database Active-Active and storage Active-Active,"Active-Active" has become the high level image of uninterrupted service.A storage-based storage Active-Active system is the lowest level of the entire application system,and is the key to building a high availability high reliability business system.This paper first studied the RAID,storage mode and the storage of data migration between storage technology,then analyzed the storage Active-Active technique and implement scheme comparison,on this basis on problems how to keep application in almost without interruption of production system high availability of data under the condition of assuring data redundancy and improve operating efficiency.Based on the implementation of storage Active-Active system schemes of an corporate group as an example,the paper focuses on high-performance storage Active-Active system scheme design and construction,mainly includes the following several aspects: the overall storage Active-Active system requirements analysis;the design of underlying storage design,storage network design and configuration selection;the scheme of storage Active-Active system based on GAD.In the end,the main failure mode of storage Active-Active system,such as host failure,arbitration storage failure,Active-Active channel failure and storage single point failure,is designed for experiment.In each specific failure mode,IO communication is tested for the construction storage Active-Active system,and the results show that the proposed scheme would meet the design requirements of the business.