---
title: "stream · link"
url: "https://colindismuke.com/stream/2026-10-03-how-761217"
published: "2026-10-03T12:49:21.217Z"
---

[How to Rack 30 Petabytes of Storage](https://si.inc/posts/the-heap/?utm_source=substack&utm_medium=email)

Building a 30-petabyte storage cluster near San Francisco to hold 90 million hours of video for training computer-use models, which cost $354k yearly versus $12 million on AWS—achieved by skipping enterprise-grade redundancy and writing 200 lines of custom Rust instead of using Ceph.