Create: 2025-04-09 Update: 2025-07-02 01:30:06

🔎 Когда падает дата-центр: кейс Яндекса и что с этим делать

30 марта в одном из дата-центров Яндекса произошло полное отключение электропитания. Инцидент затронул Яндекс Облако и вызвал сбои в работе ряда сервисов и клиентов.

Что важно понимать: у Яндекс Облака три зоны доступности. Пользователи сами выбирают, в какой зоне размещать свои ресурсы: виртуальные машины, базы данных, кластеры и так далее. Обычно это позволяет распределить нагрузку и повысить отказоустойчивость, но бывают случаи, когда срабатывают крайне редкие сценарии, что и произошло в этот раз.

Что можно было сделать заранее?
Чтобы снизить риски в таких ситуациях, облачные провайдеры предлагают ряд инструментов. Основные подходы:
- Распределение нагрузки. Размещайте сервисы в разных зонах.
- Балансировщики. Они могут быть сетевыми (уровень 4 OSI) или прикладными (уровень 7)
- Контейнеризация и оркестрация. Kubernetes (особенно в managed-варианте) даёт мощные инструменты для отказоустойчивости
- Резервное копирование. В случае физических повреждений (пожары, затопления) это критически важно.

Надежность в облаке — не по умолчанию. Она строится за счёт архитектуры, автоматизации и здравого смысла.

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🔎 Когда падает дата-центр: кейс Яндекса и что с этим делать

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