一种基于Ceph提供弹性块存储的研究及实现

Research and implementation of an elastic block storage based on Ceph

首先分析了当前弹性块存储提供方式存在一系列的缺陷,然后阐述了采用Rbd与i SCSI之间的协议转换和存储网关之间的多服务器多活实现的设计思路和实现过程,最后将改进后的弹性块云存储在生产系统进行了初步的试验。详细的理论分析和试验结果表明:该方法具有良好的动态扩展能力、稳定性高、性能达到预期的目标,以及易于维护的特点。该方式进行的块存储提供方式的相关研究工作,对于后期高端磁盘阵列替换、并网和后期系统维护提供了参考依据。

This paper first analyzes the elastic block storage provides a series o f defects, and then describes the design o f the multi server between the protocol conversion between Rbd and iSCSI and storage gateway live and realization process, finally the elastic block cloud storage improved in the production system has carried on the preliminaiy test The detailed the（？retical analysis and experimental results show that Hie proposed method has good dynamic scalability, high stability, satis＆ctory per- f（？mance, and easy maintenance. The research work o f block storage provides a reference for later disk array replacement, grid connectioa and later system maiatenance.