zhiqiang feng
587f8f51be
- flight-wiki fully merged into airport-wiki/concepts/flight-operations/ - concepts/ restructured: tech-infrastructure/ (9 pages) + flight-operations/ (10 pages) - aodb.md (380 lines) split into aodb-core.md + aodb-vendors.md - SCHEMA.md updated: Domain covers '智算中心+航班運營' dual domains - new: airport-systems-landscape.md (flight ops system architecture) - index.md rewritten with visual directory tree - log.md updated
31 lines
920 B
Markdown
31 lines
920 B
Markdown
---
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title: Tier IV 数据中心设计
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created: 2026-04-08
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updated: 2026-04-08
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type: concept
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tags: [tier-iv, design]
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sources: []
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---
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# Tier IV 数据中心设计
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## 标准参考
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- **ANSI/TIA-942-B**: 数据中心电信基础设施标准
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- **Uptime Institute Tier Standard**: Tier IV 为最高等级
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## Tier IV 核心要求
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- **可用性**: 99.99%（年停机 ≤ 0.8 小时）
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- **冗余等级**: 2N（完全冗余，任何单点故障不影响运行）
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- **容错能力**: 任意单一故障不影响 IT 负载
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- **电力路径**: 2N UPS，双市电引入
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- **冷却系统**: 2N 冗余，确保任何故障下制冷不中断
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- **物理安全**: 生物识别门禁、全区域 CCTV
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## 机场适用性
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适用于机场应急指挥中心、空管核心系统等不允许停机的关键设施。建设成本约为 Tier III 的 1.5-2 倍。
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> 相关：[[tier-iii-design]] | [[power-and-cooling]] | [[security-design]]
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