Turn Downtime Tolerance Into Architecture
Translate business downtime and data-loss tolerance into a recovery design that is specific enough to review and test.
An ordering service supports revenue every weekday. Leadership says it cannot be unavailable for more than one hour and cannot lose more than fifteen minutes of completed order data. Translate business language into RTO and RPO, then choose the least complex recovery controls that actually meet those numbers. The common trap is to say 'we have backups' without checking whether the backup interval or restore speed satisfies the actual business promise. A fast restore from stale data or fresh replication with an untested failover path can both miss the target in different ways. Make the business promise measurable Convert 'cannot…
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