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docs/BACKUPS.md

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+# Backup Strategy
+
+## Database Backups
+
+### Automated Backups
+- **Frequency**: Daily at 3 AM UTC
+- **Retention**: 7 days daily, 4 weeks weekly, 12 months monthly
+- **Storage**: Encrypted S3 bucket in separate region
+- **Type**: Full backup + WAL archiving for point-in-time recovery
+
+### Point-in-Time Recovery
+- **RPO**: < 15 minutes
+- **RTO**: < 1 hour
+- **Method**: WAL archive restoration to specific timestamp
+
+### Backup Verification
+- Monthly restore test to staging environment
+- Automated integrity checks on backup files
+- Alert on backup failure within 5 minutes
+
+## Redis Backups
+
+### Configuration
+- **RDB snapshots**: Every 6 hours
+- **AOF persistence**: Enabled for point-in-time recovery
+- **Storage**: Backed up to S3 daily
+
+### Recovery
+- Restore from latest RDB snapshot
+- Replay AOF for recent changes
+- Test data integrity after restore
+
+## Backup Monitoring
+
+### Alerts
+- Backup failure → Immediate PagerDuty alert
+- Backup size anomaly → Slack notification
+- Restore test failure → Jira ticket creation
+
+### Metrics
+- Backup duration
+- Backup size
+- Restore time
+- Data loss window (RPO)
+
+## Emergency Procedures
+
+### Complete Data Loss
+1. Activate disaster recovery plan
+2. Restore from latest backup
+3. Replay WAL/AOF for recent changes
+4. Verify data integrity
+5. Resume operations
+
+### Partial Data Corruption
+1. Identify affected data
+2. Restore specific tables from backup
+3. Verify data consistency
+4. Resume operations

docs/MIGRATIONS.md

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+# Database Migration Safety Guidelines
+
+## Principles
+
+1. **Additive changes only**: Production migrations should only add new columns, tables, or indexes
+2. **No destructive changes**: Never DROP columns or tables in production migrations
+3. **Two-phase migrations**: For destructive changes, use a two-phase approach:
+   - Phase 1: Add new schema, deploy code to use it
+   - Phase 2: Remove old schema after code is stable
+
+## Migration Process
+
+### Before Migration
+1. Test migration on staging database
+2. Verify application works with new schema
+3. Take database backup
+4. Document rollback procedure
+
+### During Migration
+1. Run migration in dry-run mode first
+2. Apply migration to production
+3. Verify migration completed successfully
+4. Monitor application for errors
+
+### After Migration
+1. Verify all queries work correctly
+2. Monitor performance metrics
+3. Update documentation if needed
+
+## Rollback Procedures
+
+### Emergency Rollback
+1. Stop application deployment
+2. Restore database from backup
+3. Revert to previous application version
+4. Verify application functionality
+
+### Planned Rollback
+1. Deploy previous application version
+2. Run rollback migration
+3. Verify application functionality
+4. Update monitoring dashboards
+
+## Migration Checklist
+
+- [ ] Migration tested on staging
+- [ ] Backup taken before production migration
+- [ ] Rollback procedure documented
+- [ ] Team notified of maintenance window
+- [ ] Monitoring dashboards prepared
+- [ ] Support team on standby