开源数据库备份的相关内容

阿里云文档 2025-06-27

PolarDB备份原理

PolarDB集群的数据备份是指在某个时间点上对集群的全量数据进行备份，生成一个备份集（快照）。该备份过程采用ROW（Redirect-on-Write）快照机制，直接存储在PolarDB集群的分布式存储系统上。在保存备份时，数据并未被真正复制。而当数据块发生修改时，系统会将历史版本的数据块保留给快照，同时生成一个新的数据块被原数据引用（Redirect）。本文将详细介绍创建备份、删除备份以及在数...

阿里云文档 2025-06-27

PolarDB备份原理

阿里云文档 2025-06-23

物理备份上云方案

阿里云文档 2025-06-12

查看数据灾备备份集

数据备份完成后，您可以通过备份集列表查看备份集，并对其进行管理、删除以及下载等操作。本文将介绍如何查看备份集。

文章 2025-02-21 来自：开发者社区

PolarDB开源数据库进阶课5 在线备份

背景穷鬼玩PolarDB RAC一写多读集群系列已经写了几篇: 《在Docker容器中用loop设备模拟共享存储》《如何搭建PolarDB容灾(standby)节点》《共享存储在线扩容》《计算节点 Switchover》本篇文章介绍一下如何进行在线备份? 实验环境依赖《在Docker容器中用loop...

阿里云文档 2025-02-13

PolarDB MySQL备份原理

文章 2023-09-23 来自：开发者社区

开源数据库Mysql_DBA运维实战（备份与还原）

Mysql数据库的备份与还原备份对于数据库而言是至关重要的。当数据文件发生损坏、MySQL服务出现错误、系统内核崩溃、计算机硬件损坏或者数据被误删等事件时，使用一种有效的数据备份方案，就可以快速解决以上所有的问题。MySQL提供了多种备份方案，包括：逻辑备份、物理备份、全备份以及增量备份，你可以选择最适合自己使用的方式备份数据。物理备份通过直接复制包含有数据库内容的目录与文件实现，这种备份方式适....

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