0063 容错、高可用、灾备:概念与区分 episode artwork

EPISODE · Jun 29, 2025 · 8 MIN

0063 容错、高可用、灾备:概念与区分

from Web技术动态

这段文本定义并区分了IT领域中三个常被混淆的术语:容错、高可用性和灾难恢复。容错系统即使在组件故障的情况下也能持续运行,就像一架有多个发动机的飞机。高可用性设计承认可能发生短暂中断,但通过快速替换故障组件来确保系统迅速恢复运行,例如汽车的备胎。最后,灾难恢复专注于在基础设施发生重大故障时拯救业务核心,其核心思想是保护数据和运营,而不是挽救受损的系统,就像飞行员从坠毁的飞机中弹射逃生一样。

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0063 容错、高可用、灾备:概念与区分

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