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Stratus fault-tolerant server ran for 24 years without an unplanned shutdown

computerworld.com Editor score 6/10

A Stratus fault-tolerant server booted in 1993 and reportedly ran without an unplanned shutdown for 24 years, with about 80% of its system original. Its redundancy and long-life maintenance offer a small-scale reliability case study.

What

A Stratus fault-tolerant server booted in 1993 and was still operating at the time of the 2017 report.

How

Its hardware was redundant; drives and power supplies were replaced, while the owner reported no unplanned shutdowns caused by faults.

Why it matters

The case shows how redundancy and replaceable parts can sustain critical systems, while also highlighting the long-term challenge of planning upgrades.

Read on computerworld.com → Hacker News · 103 comments

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