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云存储以其强大的容错性、部署的灵活性、可扩展性、维护的便捷性等优势,在各行业得到普遍推广和广泛应用,但是因云存储数据冗余保护的需要,高消耗是其不可避免的弊端。如何降低其磁盘空间的消耗,对云存储系统的成本优化意义重大。本文基于Ceph文件系统,研究文件和磁盘的映射关系以及数据冗余和磁盘利用率的关系,对云存储的实际生产运行有重要意义。
Due to its strong fault tolerance, deployment flexibility, scalability, and ease of maintenance, cloud storage has been widely promoted and widely used in various industries. However, due to the need of redundancy protection of cloud storage data, cloud storage is its high consumption Inevitable drawbacks. How to reduce the consumption of disk space is of great significance to the cost optimization of the cloud storage system. Based on the Ceph file system, this paper studies the relationship between file and disk mapping and the relationship between data redundancy and disk utilization, which is of great significance to the actual production and operation of cloud storage.