disaster recovery; fault clearing; fault restoration
Technical term used in IT, engineering, and disaster management for restoring systems or services after a failure or outage.
It took several hours to recover from the system failure.
It is important to establish a disaster recovery plan in advance.
復旧 is a general term for restoration or recovery, while 障害復旧 specifically refers to recovery from a fault or disaster.
災害復旧 focuses on recovery from natural disasters, whereas 障害復旧 is broader and includes system faults and technical failures.
Compound of 障害 (fault, obstacle) and 復旧 (restoration, recovery). The exact historical derivation is uncertain, but the term is a modern technical coinage.