Art of Distributed System Architecture Design
May 30, 2015 · Industry Insights
How Facebook’s Cold Storage Cuts Power Use by 75% While Scaling Performance
Facebook’s Cold Storage system redesigns hardware and software to store rarely accessed data with up to 75% lower power consumption, modular 2U racks holding 30 disks, Reed‑Solomon erasure coding for cheap redundancy, and a self‑healing “anti‑entropy” process that improves performance as the system scales.
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