The verdict in three sentences
A business SaaS with no documented disaster recovery plan gambles its reputation at every incident. In 2026, the real decision is not "should we back up" but "which RPO and RTO to target," because moving from a one-hour RPO to fifteen minutes changes the architecture and adds 15 to 30 % to infrastructure cost. The right level follows from your client SLA commitments: past a certain threshold, a minute of downtime costs more than the replication that prevents it.
Understanding RPO and RTO
RPO (maximum acceptable data loss) and RTO (maximum recovery time) drive architecture and budget. The lower they are, the more redundant and costly the infrastructure.
| Level | RPO | RTO | 2026 infra premium |
|---|---|---|---|
| Basic | 24 h | 24 h | +0 % (daily backup) |
| Standard | 1 h | 4 h | +10 to +15 % |
| Advanced | 15 min | 1 h | +15 to +30 % |
| Critical | < 5 min | < 30 min | +30 to +50 % |
Most B2B business SaaS sit at the standard or advanced level: a 15-minute to 1-hour RPO is enough to meet common SLAs without blowing the budget.
The components of a solid DR plan
A recovery plan is more than backups: it combines replication, procedures and regular testing. Here are the items to budget.
| Component | Role | 2026 order of magnitude |
|---|---|---|
| Automated backups | Point-in-time restore | Included / low |
| Multi-zone replication | Fast failover | +15 to +30 % infra |
| Restore testing | Validate real RTO | 1 to 2 d / quarter |
| Documented DR plan | Failover procedure | 2,000 – 6,000 EUR |
| Monitoring & alerting | Incident detection | Included in infra |
| Incident runbook | Execution guide | 1,000 – 3,000 EUR |
Without regular restore testing, a recovery plan stays theoretical: it is the only way to check the stated RTO is achievable.
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Mini case study
Karim, CTO of a logistics-management SaaS in Toronto, serves 140 B2B clients with a 99.9 % SLA (about 8 h 45 of tolerated downtime per year). His infrastructure costs 4,200 EUR / month. Moving from a 24 h RPO to a 15-minute RPO with multi-zone replication adds 25 %, i.e. 1,050 EUR / month (12,600 EUR / year), plus 4,000 EUR for a documented DR plan in year one. In return, a major full-day outage would trigger SLA penalties estimated at 9,000 EUR and the likely churn of two contracts worth 30,000 EUR / year. Karim approves the advanced architecture: the investment is less than a year of penalties avoided on a single serious incident.
FAQ
What is the difference between RPO and RTO? RPO is the maximum data you accept losing (measured in time); RTO is the maximum time to restore service. A 15-minute RPO means losing at most 15 minutes of data.
Are backups enough? No, not for a SaaS with an SLA. Backups restore data, but only multi-zone replication enables fast failover meeting a one-hour or lower RTO.
What does a good DR plan cost in 2026? Replication adds 15 to 30 % to infrastructure cost for an advanced level, plus 2,000 to 6,000 EUR to document the plan in year one.
How often should you test the DR plan? At least once a quarter. A restore test reveals the gap between theoretical and real RTO, which is often underestimated.
Does the DR plan affect the SLAs sold to clients? Directly. Your internal RPO/RTO determine the SLA level you can contract without penalty risk. A 99.9 % SLA assumes at least a standard DR plan.
Let's scope your project. Tell us about your SaaS, your SLA commitments and your RPO/RTO targets: we frame a backup architecture and a documented DR plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
