Explain RTO and RPO with examples.

Beginner

Answer

Recovery Time Objective (RTO):

  • Maximum acceptable time to restore service after disruption
  • Measured from disaster occurrence to full service restoration
    Recovery Point Objective (RPO):
  • Maximum acceptable amount of data loss measured in time
  • Last point in time to which data can be recovered
    Examples:
  • E-commerce site: RTO = 2 hours (site must be online within 2 hours), RPO = 15 minutes (can lose max 15 minutes of orders)
  • Email system: RTO = 4 hours, RPO = 1 hour
  • Archived data: RTO = 3 days, RPO = 24 hours
    Key Point: Lower RTO/RPO requirements typically mean higher costs for backup and DR infrastructure.