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TechnologyGenerated accuracy model review: 2026-05-06

Disaster Recovery RTO/RPO Calculator accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

  • Data at risk = change rate GB/hour * RPO hours. Recovery gap = RTO target - estimated recovery time. Required Mbps = GB/hour * 8192 / 3600 * overhead factor.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

  • RTO Target: 4 hours
  • Estimated Recovery Time: 3.5 hours
  • RPO Target: 60 min
  • Changed Data Rate: 25 GB/hr
  • Replication Overhead: 20%

Expected outputs

  • RTO Status: Meets RTO target
  • Recovery Gap: 0.5 hours
  • Data at Risk: 25 GB
  • Required Replication Bandwidth: 68.27 Mbps

Known limitations

  • This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
  • Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

  • Change rate is averaged over the protection window.
  • Bandwidth does not include seeding or full restore transfer time.
  • No operational details are stored.

Unit handling

  • RTO Target accepts values in hours.
  • Estimated Recovery Time accepts values in hours.
  • RPO Target accepts values in min.
  • Changed Data Rate accepts values in GB/hr.
  • Replication Overhead accepts values in %.
  • Recovery Gap is displayed in hours.
  • Data at Risk is displayed in GB.
  • Required Replication Bandwidth is displayed in Mbps.

Rounding rules

  • Number displays use up to 2 decimal places in the calculator UI.
  • Input precision follows configured step values where provided.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current disaster-recovery-rto-rpo-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Disaster Recovery RTO/RPO Calculator.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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