备份、容灾基础知识.docxVIP

备份、容灾基础知识

目录

1.备份与容灾概述..........................................3

1.1备份的定义...........................................4

1.2容灾的定义...........................................5

1.3备份与容灾的关系.....................................5

2.备份策略................................................6

2.1备份类型.............................................7

2.1.1完全备份.........................................8

2.1.2差分备份.........................................9

2.1.3增量备份........................................10

2.2备份模式............................................11

2.2.1离线备份........................................11

2.2.2在线备份........................................12

2.2.3定期备份........................................14

2.3备份周期与规模......................................14

3.容灾规划...............................................16

3.1容灾目标............................................17

3.2容灾等级............................................18

3.3容灾设施规划........................................18

3.3.1备用数据中心....................................19

3.3.2网络灾备........................................21

3.3.3应用服务灾备....................................22

4.备份技术...............................................23

4.1常用备份技术........................................25

4.1.1压缩技术........................................26

4.1.2加密技术........................................27

4.2异地容灾技术........................................28

4.2.1网络同步技术....................................30

4.2.2分布式存储技术..................................31

5.容灾实施...............................................32

5.1容灾架构设计........................................33

5.2容灾实施流程........................................34

5.2.1现状评估........................................35

5.2.2制定容灾方案....................................37

5.2.3购买设备与软件..................................38

5.2.4实施部署........................................39

5.2.5测试与验证.............