Step 4: Estimate Storage and I/OThis is often the hardest part to predict. Look at your current MongoDB metrics or application logs to estimate: Total storage: How many GBs of JSON data will you store? I/O Rate: How many read/write operations occur per second?
Navigate to the AWS Pricing Calculator, select "Amazon DocumentDB (with MongoDB compatibility)," and the real work begins.
AWS DocumentDB recently added (v4.0). Instead of picking r5.large , you pick "Serverless" and define a capacity range (0.5 to 16 ACUs—Application Capacity Units). aws documentdb pricing calculator
Delete Unused Clusters: In development environments, use automation to shut down or delete clusters during off-hours. Conclusion
If you are guessing your I/O rate ("Uh, maybe 500 IOPS?"), the calculator is worthless—garbage in, garbage out. However, if you export CloudWatch metrics from a staging environment (e.g., DatabaseCursors , ReadIOPS , WriteIOPS ), the calculator becomes a crystal ball. Step 4: Estimate Storage and I/OThis is often
AWS DocumentDB Pricing Calculator: A Complete Guide to Estimating Your Costs
| Instance Type | Monthly Costs | | --- | --- | | db.t3.medium | $26.40 | | db.t3.large | $52.80 | | db.r5.xlarge | $105.60 | Navigate to the AWS Pricing Calculator, select "Amazon
To estimate costs, we will use the following assumptions:
$$ \textTotal Compute Cost = (\textInstance Hourly Rate \times \textNumber of Instances \times 730 \text hours) $$
Step 4: Estimate Storage and I/OThis is often the hardest part to predict. Look at your current MongoDB metrics or application logs to estimate: Total storage: How many GBs of JSON data will you store? I/O Rate: How many read/write operations occur per second?
Navigate to the AWS Pricing Calculator, select "Amazon DocumentDB (with MongoDB compatibility)," and the real work begins.
AWS DocumentDB recently added (v4.0). Instead of picking r5.large , you pick "Serverless" and define a capacity range (0.5 to 16 ACUs—Application Capacity Units).
Delete Unused Clusters: In development environments, use automation to shut down or delete clusters during off-hours. Conclusion
If you are guessing your I/O rate ("Uh, maybe 500 IOPS?"), the calculator is worthless—garbage in, garbage out. However, if you export CloudWatch metrics from a staging environment (e.g., DatabaseCursors , ReadIOPS , WriteIOPS ), the calculator becomes a crystal ball.
AWS DocumentDB Pricing Calculator: A Complete Guide to Estimating Your Costs
| Instance Type | Monthly Costs | | --- | --- | | db.t3.medium | $26.40 | | db.t3.large | $52.80 | | db.r5.xlarge | $105.60 |
To estimate costs, we will use the following assumptions:
$$ \textTotal Compute Cost = (\textInstance Hourly Rate \times \textNumber of Instances \times 730 \text hours) $$