Cloud Intermediate
Cloud Disaster Recovery — Strategie¶
Disaster RecoveryRTORPOBusiness Continuity 5 min read
DR strategie, RTO/RPO, multi-region setup a testování.
Strategies¶
- Backup & Restore — RPO/RTO hodiny, nejlevnější
- Pilot Light — core infra ready, RPO min, RTO desítky min
- Warm Standby — scaled-down kopie, RPO s, RTO min
- Active-Active — RPO/RTO ~0, nejdražší
Multi-Region¶
# RDS cross-region replica
resource "aws_db_instance" "dr" {
provider = aws.us_east_1
replicate_source_db = aws_db_instance.primary.arn
instance_class = "db.r6g.large"
}
# + S3 CRR + ECR replication + Route 53 failover
Testing¶
- Tabletop — kvartálně
- Functional failover — pololetně
- Full-scale — ročně
- DR plán bez testu = žádný plán
Summary¶
Definujte RTO/RPO per app, zvolte strategii, pravidelně testujte.
Need Help with Implementation?¶
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