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CASE STUDY: ShopGlobal
Company Overview:
ShopGlobal is an international e-commerce retailer. They are preparing for their largest annual sales event (Black Friday) and want to migrate off their aging on-premises infrastructure.
Current Technical Environment:
- 3 on-premises data centers (US-East, US-West, EU-Central).
- VMware vSphere environment with 500 VMs.
- Monolithic Java application running on Tomcat.
- Oracle RAC database for transactions.
- 50 TB of product images on SAN storage.
Business Requirements:
- Ensure 100% availability during the upcoming holiday season.
- Modernize the application architecture over the next 3 years.
- Reduce capital expenditure (CapEx) by shifting to an OpEx model.
Executive Statements:
- CEO: "Downtime during Black Friday costs us $1M per hour. We need bulletproof reliability."
- CFO: "We want to stop buying hardware. Move everything to a pay-as-you-go model."
- CTO: "We want to eventually move to microservices, but we don't have time to rewrite the app before the holidays."
Technical Requirements:
- Migrate the existing VMs to the cloud with minimal changes initially.
- Implement a global CDN for product images to reduce latency.
- Set up disaster recovery with an RPO of 15 minutes and RTO of 1 hour.
- Ensure PCI-DSS compliance for payment processing.
Constraints:
- The migration must be completed in 4 months (before the code freeze).
- The Oracle database license cannot be easily transferred to the cloud.
- The team has no experience with Kubernetes or containers yet.
QUESTION:
Given the 4-month timeline and the CTO's constraints, which migration strategy should you recommend for the VMware environment?
GCP PCA · Question 09 · Technical Requirements
CASE STUDY: ShopGlobal
Company Overview:
ShopGlobal is an international e-commerce retailer. They are preparing for their largest annual sales event (Black Friday) and want to migrate off their aging on-premises infrastructure.
Current Technical Environment:
- 3 on-premises data centers (US-East, US-West, EU-Central).
- VMware vSphere environment with 500 VMs.
- Monolithic Java application running on Tomcat.
- Oracle RAC database for transactions.
- 50 TB of product images on SAN storage.
Business Requirements:
- Ensure 100% availability during the upcoming holiday season.
- Modernize the application architecture over the next 3 years.
- Reduce capital expenditure (CapEx) by shifting to an OpEx model.
Executive Statements:
- CEO: "Downtime during Black Friday costs us $1M per hour. We need bulletproof reliability."
- CFO: "We want to stop buying hardware. Move everything to a pay-as-you-go model."
- CTO: "We want to eventually move to microservices, but we don't have time to rewrite the app before the holidays."
Technical Requirements:
- Migrate the existing VMs to the cloud with minimal changes initially.
- Implement a global CDN for product images to reduce latency.
- Set up disaster recovery with an RPO of 15 minutes and RTO of 1 hour.
- Ensure PCI-DSS compliance for payment processing.
Constraints:
- The migration must be completed in 4 months (before the code freeze).
- The Oracle database license cannot be easily transferred to the cloud.
- The team has no experience with Kubernetes or containers yet.
QUESTION:
Which database migration strategy addresses the Oracle licensing constraint while meeting the performance requirements for the monolithic application?
CASE STUDY: ShopGlobal
Company Overview:
ShopGlobal is an international e-commerce retailer. They are preparing for their largest annual sales event (Black Friday) and want to migrate off their aging on-premises infrastructure.
Current Technical Environment:
- 3 on-premises data centers (US-East, US-West, EU-Central).
- VMware vSphere environment with 500 VMs.
- Monolithic Java application running on Tomcat.
- Oracle RAC database for transactions.
- 50 TB of product images on SAN storage.
Business Requirements:
- Ensure 100% availability during the upcoming holiday season.
- Modernize the application architecture over the next 3 years.
- Reduce capital expenditure (CapEx) by shifting to an OpEx model.
Executive Statements:
- CEO: "Downtime during Black Friday costs us $1M per hour. We need bulletproof reliability."
- CFO: "We want to stop buying hardware. Move everything to a pay-as-you-go model."
- CTO: "We want to eventually move to microservices, but we don't have time to rewrite the app before the holidays."
Technical Requirements:
- Migrate the existing VMs to the cloud with minimal changes initially.
- Implement a global CDN for product images to reduce latency.
- Set up disaster recovery with an RPO of 15 minutes and RTO of 1 hour.
- Ensure PCI-DSS compliance for payment processing.
Constraints:
- The migration must be completed in 4 months (before the code freeze).
- The Oracle database license cannot be easily transferred to the cloud.
- The team has no experience with Kubernetes or containers yet.
QUESTION:
Which database migration strategy addresses the Oracle licensing constraint while meeting the performance requirements for the monolithic application?
Answer options:
Migrate the Oracle database to Cloud SQL for PostgreSQL using the Database Migration Service.
Install Oracle on Compute Engine VMs and bring your own license (BYOL).
Migrate the Oracle database to Google Cloud Bare Metal Solution (BMS).
Migrate the data to Cloud Spanner and update the Java application to use the Spanner JDBC driver.
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