Gabardo Engineering

Gabardo Engineering

How a simple S3 design decision turned into a $7M cost

The hidden tax of 1.5 trillion objects and why your lifecycle policies might be a financial time bomb.

Adrian Gabardo's avatar
Adrian Gabardo
Apr 20, 2026
∙ Paid

AWS S3 is widely viewed as inexpensive, effectively unbounded object storage. In this case study, that is exactly how it behaved - with the caveat that the data storage decisions our team took cost us close to 40x more than they should have, and a lifecycle policy decision nearly exploded into a $7.2 million bill whilst trying to stop the cost bleed.

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