Next-Gen Server Administration & InfraOps
Disaster Recovery and Chaos Engineering
Disaster recovery defines how you restore service after failure. Chaos engineering tests those assumptions before real outages. Together they turn recovery plans from documents into verified capability.
要点
- Define RTO and RPO per service and get business sign-off.
- Maintain tested backups with documented restore procedures.
- Run restore drills quarterly and time them against RTO.
- Use chaos experiments to validate failover, backup, and scaling behavior.
- Start chaos in staging, then expand to production with guardrails.
- Automate failover where it is safe and reversible.
- Document incident roles and communication templates in advance.
- Review and update recovery plans after every real incident.
よくある質問
Is chaos engineering safe?
Yes with scope, blast-radius limits, and rollback plans. Never experiment without them.
How often should we drill?
Quarterly for critical services, at least annually for the rest.
What is the first chaos experiment?
Usually killing a single instance or dependency in staging and watching recovery.
Do small teams need this?
Yes, scaled to size. Even simple restore drills beat untested plans.
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