ishenwei/nexus
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Auto-sync: 2026-04-21 17:12

Browse Source
This commit is contained in:
weishen
2026-04-21 17:12:45 +08:00
parent 914c8f6925
commit 0fe7ba237f
1888 changed files with 220 additions and 68174 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
wiki/concepts/RPO.md
View File

@@ -1,32 +0,0 @@
---
title: "RPO (Recovery Point Objective)"
type: concept
tags: [灾难恢复, 数据保护, 指标]
sources: ["https://launchdarkly.com/blog/rto-vs-rpo/"]
last_updated: 2025-07-26
---
## Definition
RPO（Recovery Point Objective，恢复点目标）是指可接受的最大数据丢失量，以时间度量。从最后一次有效备份到故障发生所经历的时间。
## Key Characteristics
- 衡量数据保护程度
- 从故障时刻向后计算（倒计时）
- 与备份频率直接相关
- 需要与 RTO 共同规划，不能只优化其中一个
## Tiered RPO Targets (from this source)
| Tier | Examples | RPO Target |
|------|----------|------------|
| Critical | Payment processing, user auth | < 1 minute |
| Important | Admin dashboards, reporting | < 15 minutes |
| Nice-to-have | Internal tools, dev environments | < 1 hour |
## Example
如果数据库在下午3点崩溃，而最后一次备份是下午2点，则 RPO 为1小时。2点到3点之间的所有数据丢失。
## Connections
- [[RTO (Recovery Time Objective)]] ← 配对指标 → [[RPO (Recovery Point Objective)]]
- [[灾难恢复]] ← 应用领域 → [[RPO (Recovery Point Objective)]]
- [[持续交付]] ← 现代上下文 → [[RPO (Recovery Point Objective)]]
- [[Feature Flag]] ← 保护工具 → [[RPO (Recovery Point Objective)]]