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Disaster Recovery Specification
Overview
Disaster recovery procedures and backup strategies.
Backup Strategies
Database Backups
Full Backups: Daily full database dumps Incremental Backups: Continuous WAL archiving (PostgreSQL) Storage: Off-site backup storage Retention: 30 days full, 7 days incremental
Application Backups
Configuration: Backup configuration files Secrets: Secure backup of secrets Code: Version control (Git)
Recovery Procedures
Recovery Scenarios
1. Database Corruption:
- Restore from latest backup
- Replay WAL logs
- Verify data integrity
2. Service Failure:
- Restart services
- Verify health
- Check logs
3. Data Center Failure:
- Failover to secondary region
- Restore from backups
- Verify functionality
Recovery Testing
Frequency: Quarterly Tests: Restore from backups, verify data integrity
RTO/RPO Targets
RTO (Recovery Time Objective): 1 hour RPO (Recovery Point Objective): 5 minutes (max data loss)
Multi-Region Failover
Failover Strategy
Primary Region: Active services Secondary Region: Standby/replica services Failover: Automatic or manual failover
Data Replication
Method: Database replication, data synchronization Latency: Acceptable replication lag Consistency: Eventual consistency acceptable
References
- Infrastructure: See
infrastructure.md - Scaling: See
scaling.md