Advanced System Tools

Procedure for complete platform restoration when all primary systems are unavailable. Estimated recovery time: 3-4 hours.

1. Activate DR failover site and verify network connectivity
2. Restore database cluster from latest S3 vault backup
3. Deploy application containers from configuration backups
4. Verify data integrity and run automated health checks
5. Update DNS records and redirect traffic to DR site

Procedure for recovering a single failed compute node. Estimated recovery time: 30-60 minutes.

1. Isolate the failed node from the load balancer pool
2. Migrate active workloads to healthy nodes
3. Perform hardware diagnostics and repair or replace
4. Restore node configuration from backup
5. Re-add node to cluster and verify health checks

Procedure for restoring database services from backup when primary database is corrupted or unavailable. Estimated recovery time: 1-2 hours.

1. Stop all write operations and enable maintenance mode
2. Identify the latest clean backup point from backup logs
3. Restore full backup then apply incremental transactions
4. Validate data integrity with checksums and spot checks
5. Resume services and monitor for anomalies

Procedure for activating DNS failover when the primary datacenter becomes unreachable. Estimated propagation time: 5-30 minutes.

1. Confirm primary site is unreachable via multiple checks
2. Activate secondary DNS records with pre-configured low TTL
3. Verify secondary site services are healthy and accepting traffic
4. Monitor DNS propagation and client connectivity

Procedure for recovering from a network partition or complete network failure. Estimated recovery time: 15-45 minutes.

1. Identify the scope and cause of the network partition
2. Activate backup network paths and BGP failover routes
3. Reconfigure affected firewalls and load balancers
4. Verify inter-node communication and service mesh health
5. Run full connectivity test suite across all regions