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Difficulty: MediumEstimating GCP Costs with the Pricing Calculator

An architect is using the Google Cloud Pricing Calculator to project the monthly operational expense for a reporting server hosted on Compute Engine. The workload requires a single custom VM running 730730 hours per month with a base un-discounted rate of $0.20\$0.20 per hour. The organization purchases a 1-year Committed Use Discount (CUD) for this compute instance, which grants a 37%37\% discount on the instance compute costs. Additionally, the instance uses 250 GB250\text{ GB} of Standard Persistent Disk storage priced at $0.04\$0.04 per GB per month, and generates 500 GB500\text{ GB} of internet egress data per month priced at $0.12\$0.12 per GB. What is the total estimated monthly cost in USD for this workload using the Pricing Calculator?

Answer: 161.98 USD

Answer

The total estimated monthly cost for the workload using the Pricing Calculator is $161.98.
The correct total monthly estimate is 161.98.Computecostswithoutdiscountsequal730hours∗161.98. Compute costs without discounts equal 730 hours * 0.20 = 146.00.Applyingthe37146.00. Applying the 37% Committed Use Discount reduces compute costs to 146.00 * 0.63 = 91.98.Adding91.98. Adding 10.00 for Persistent Disk storage (250 GB * 0.04)and0.04) and 60.00 for network egress (500 GB * 0.12)yields0.12) yields 161.98.

Step-by-Step Solution

1
Calculate un-discounted monthly VM compute cost
730 hours * 0.20/hour=0.20/hour = 146.00
Compute Engine base cost is determined by multiplying total monthly running hours by the hourly rate.
2
Apply 1-year Committed Use Discount (CUD) to compute cost
146.00∗(1−0.37)=146.00 * (1 - 0.37) = 91.98
CUDs apply a percentage discount exclusively to baseline compute resource usage.
3
Calculate Standard Persistent Disk storage cost
250 GB * 0.04/GB=0.04/GB = 10.00
Storage pricing is flat per GB-month and does not receive CUD compute discounts.
4
Calculate network egress cost
500 GB * 0.12/GB=0.12/GB = 60.00
Egress data transfer is billed per GB based on destination rates.
5
Calculate total monthly cost estimate
91.98+91.98 + 10.00 + 60.00=60.00 = 161.98
The final monthly cost in the Pricing Calculator aggregates discounted compute costs with non-discounted storage and network fees.

Key Concept

Estimating GCP Costs with Committed Use Discounts, Storage, and Egress in the Pricing Calculator
Estimated Time:1m 30s
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Topics

Estimating GCP Costs with the Pricing Calculator

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