The AWS Bill Says $4,000. It Won't Tell You Which Database Owes What.

Short summary

AWS RDS bills arrive at instance level, hiding per-database costs behind shared infrastructure. HiFX built DBSteward to solve this blind spot: it reads SQL Server's dynamic management views to capture each database's actual CPU, I/O, memory, and storage usage, then allocates the instance bill fairly based on weighted metrics. Tracked databases pay only for their portion; system overhead and untracked resources remain explicit and honest.

• •Cloud bills are blind below the instance level—you can't see which database uses what
• •DBSteward reads database engine metrics to measure per-database resource consumption
• •Fair allocation uses weighted metrics that reflect what the instance is actually constrained on

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