Glossary
RTO (recovery time objective)
Also called: Recovery time objective
In one sentence
The longest your business can afford to be without a system before the outage causes serious harm — your target for getting it back.
Your recovery time objective is a deadline you set in advance: “If our practice management system goes down, we need it working again within four hours.” It isn’t a promise that nothing will break. It’s the yardstick you use to decide how much protection a system needs and how your backups and recovery plan should be designed.
Different systems get different RTOs. Email might tolerate a day. The scheduling and charting system at a dental office probably can’t tolerate more than a morning, because the front desk can’t check patients in, look up insurance or see the day’s schedule. A shared folder of old marketing files might be fine for a week. Setting these numbers forces an honest conversation about what really matters.
RTO drives cost. Restoring a whole server from an off-site copy can take most of a day once you count downloading the data and testing. If your RTO is two hours, you need something faster — a local backup appliance that can run the server temporarily, a cloud-hosted system, or a second internet line so you’re not waiting on your provider. Use our downtime cost calculator to see what each hour actually costs, then decide what a shorter RTO is worth.
Example: a five-dentist practice decides its imaging and practice software need an RTO of four hours, while email can wait until the next day. Their backup design, and their disaster recovery plan, are built around those two numbers — and tested twice a year to prove they’re realistic. RTO pairs with RPO, which measures how much data you can afford to lose.
Related terms
- RPO (recovery point objective)The maximum amount of recent work, measured in time, that you could lose in a disaster and still be OK.
- Disaster recovery (DR)The plan and tools for getting your systems and data back after a serious failure such as ransomware, a fire, a flood or a dead server.
- Business continuityYour plan for keeping the business serving customers or patients during a disruption — not just restoring IT afterwards.
- 3-2-1 backup ruleKeep three copies of your data, on two different kinds of storage, with one copy kept off site.
- FailoverAutomatically switching to a backup system or connection when the main one fails, so work carries on with little or no interruption.