btier是一个开源tiering项目，附件是代码分析，希望对大家有帮助

Key Features Leverage Ceph's advanced features such as erasure coding, tiering, and Bluestore Solve large-scale problems with Ceph as a tool by understanding its strengths and weaknesses to develop the best solutions A practical guide that covers en

对Ceph介绍的知识导图，主要包括管理工具，支持的存储类型，冗余机制，Cache tiering，相关概念解释等

官方资料：Oracle Database 12c新特性设计与实现 Oracle ASM;Online Datafile Move;ILM;Automatic Compression & Tiering;Hot/Cold Data Classification;Data Guard 异步;ADG Far Sync 远程同步;ASM通过写冗余实现存储高可用;Oracle Extended RAC的读写模式;Multitenant Architecture;