Looking up...
A set of policies, tools, and procedures designed to enable the recovery or continuation of vital technology infrastructure and systems following a natural or human-induced disaster.
在云计算环境中，灾难恢复通常涉及数据备份、冗余系统和快速切换机制。
In cloud computing environments, disaster recovery typically involves data backup, redundant systems, and rapid failover mechanisms.
Often abbreviated as DR. Includes both on-site and off-site recovery strategies.
A robust disaster recovery plan typically includes: 1) Regular data backups, 2) Identified recovery time objectives (RTO), 3) Identified recovery point objectives (RPO), 4) Clear roles and responsibilities, and 5) Regular testing of recovery procedures.
RTO (Recovery Time Objective) is the maximum acceptable time to restore services after a disruption. RPO (Recovery Point Objective) is the maximum acceptable amount of data loss measured in time. Both must be defined in any disaster recovery plan.
The term combines '灾难' (zāinàn, meaning 'disaster' or 'calamity') and '恢复' (huīfù, meaning 'recovery' or 'restoration'). The concept emerged with the rise of digital systems requiring protection against unexpected failures.
Commonly used in IT infrastructure contexts. May refer to both natural disasters (e.g., earthquakes) and technical failures (e.g., server crashes).