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We built a 30 PB storage cluster in the heart of SF.

Check out the writeup!—
si.inc/posts/the-heap/
Building the heap: racking 30 petabytes of hard drives for pretraining
How we spent under half a million dollars to build a 30 petabyte data storage cluster in downtown San Francisco
si.inc
October 1, 2025 at 3:28 PM