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Zorluk: OrtaDeveloping Procedures for Business Continuity and Disaster Recovery Validation

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?

  1. Audit and request required regional compute and network resource quota increases in the secondary disaster recovery region in advance of the scheduled validation drill.Cevap
  2. B
    Reconfigure the database tier to use cold-standby scheduled backups restored to regional Cloud SQL instances during the drill to lower continuous database replication overhead.
  3. C
    Rely on automatic GCP default quota expansions during the failover drill, initiating instance group scaling without pre-auditing target region resource capacity limits.
  4. D
    Temporarily reroute failover data traffic over an unencrypted HA VPN connection instead of the existing Dedicated Interconnect to reduce DR validation network costs.

Cevap

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.

Adım Adım Çözüm

1
Analyze the disaster recovery scenario and regional resource demands.
Identified that scaling up resources in a secondary failover region requires sufficient compute capacity quotas.
GCP regional quotas limit the maximum number of compute resources that can be provisioned in a given region.
2
Evaluate the pre-drill validation steps necessary to ensure seamless failover.
Confirmed that quota availability must be verified and requested ahead of time.
Quota approval can take time, and missing quotas will cause automated deployment or scaling scripts to fail during a disaster recovery scenario.

Anahtar Kavram

Disaster Recovery Validation and Resource Quota Management
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