backup system

Secondary operational reserve

A backup system is a secondary mechanism designed to take over if the primary one fails.

The term appears most often in computing, where backup systems preserve data or maintain operations during outages: The backup system kicked in when the main server crashed.

More broadly, any redundant arrangement kept in reserve: We have a backup system in case the generator fails.

Related

restore · safeguard · fallback · contingency · safety net · belt and suspenders · spare · reserve · duplicate · mirror · archive · tape drive · snapshot · disaster · crash · server · data · cloud

Categories
Opposites
primary vs. secondary function

backup systemprimary

Chief in importance

main

redundancy vs. single point of failure

backup systemsingle point of failure

Lone vulnerable component

Family

backup, back, system, backed, backing, backs, systematic, systemic, systematically

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G