阿里云POLARDB云数据库分布式存储.pdf

POLARDB云数据库分布式存储引擎揭秘 PolarStore , An Ultra-low Latency and Fault Resilient Distributed Storage System for Cloud Database 阿里云资深技术专家 曹伟 Wei Cao, Senior Staff Engineer, Alibaba Cloud 1 2 3 4 计算和存储 控制平面与 超高性能 面向数据库优化的 分离的优势 数据平面分离 超低延迟 智能存储 The benefit of Distributed system Start of the art The smart storage decoupling architecture: distributed storage designed for storage from separation of system, database workload compute control plane and high performance data plane and ultra-low lantency 计算与存储分离的优势 The Benefit of Decoupling Storage from Compute 存储池化 计算存储 降低成本 硬件分离优化 Customization and Higher storage utilization rate and lower total cost of ownership Optimization for compute and storage separately 数据库 一份存储 快速迁移能力 多节点共享 Faster migration of database Shared storage for share node everything architecture 软件定义存储能力更强 Powerful Features Provided by Software Defined Storage 单盘扩容到 三副本一致性 100TB 数据安全 Capacity of a single disk can Data coherency guaranteed be scaled out to 100TB by three Replicas