Recovery Point Objective (RPO) is a business continuity and disaster recovery metric that defines the maximum tolerable period of data loss, measured in time, that an organization can accept following a system disruption. It determines the required frequency of data backups or replication by answering the question: 'How much work, in terms of time, can we afford to redo?' An RPO of one hour, for instance, means systems must be designed to lose no more than the last hour's worth of data, dictating backup intervals and replication lag targets.
