Lessons and Actions: What We Learned from 10K SSD-Related Storage System Failures
summary
Study analyzes about 10K RASR failures across ~500k SSDs over three years in Alibaba Cloud and quantifies causes: passive heating from mixed rack placement raises SSD temps by up to ~25°C and drives bit error rates (media errors lead to drive replacements); a 128‑hour high‑temp test shows ~57% error increase unless a periodic host scanning read is run (drops to ~1%); SSD‑related reports are ~6% of replacements, faulty cables and human slot errors explain ~20% of incidents.
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