A global online multiplayer gaming enterprise hosts its real-time session management application on Google Cloud. The architecture uses Compute Engine Managed Instance Groups (MIGs) across a primary region and an secondary failover region, connected to a multi-region Cloud Spanner database for player profile states. The lead cloud architect is tasked with creating a standardized Disaster Recovery (DR) validation procedure to periodically test complete regional failover readiness without risking service disruption. Which validation procedure must be executed prior to initiating the compute failover drill to prevent deployment failures during DR execution?
- Audit and request required regional compute and network resource quota increases in the secondary disaster recovery region in advance of the scheduled validation drill.Answer
- BReconfigure the database tier to use cold-standby scheduled backups restored to regional Cloud SQL instances during the drill to lower continuous database replication overhead.
- CRely on automatic GCP default quota expansions during the failover drill, initiating instance group scaling without pre-auditing target region resource capacity limits.
- DTemporarily reroute failover data traffic over an unencrypted HA VPN connection instead of the existing Dedicated Interconnect to reduce DR validation network costs.
Answer
Audit and request required regional compute and network resource quota increases in the secondary disaster recovery region in advance of the scheduled validation drill.
Pre-verifying and requesting necessary resource quota increases in the target DR region ensures that when failover occurs, the Managed Instance Groups can successfully scale to full operational capacity without failing due to project quota limits.
Step-by-Step Solution
Key Concept
Disaster Recovery Validation and Resource Quota Management