Which solution will provide the MOST cost savings without impacting the performance of the database?

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In: SAP-C01
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A company is running a custom database in the AWS Cloud.The database uses Amazon EC2 for compute and uses Amazon Elastic Block Store (Amazon EBS) for storage.The database runs on the latest generation of EC2 instances and uses a General Purpose SSD (gp2) EBS volume for data.The current data volume has the following characteristics:✑ The volume is 512 GB in size.✑ The volume never goes above 256 GB utilization.✑ The volume consistently uses around 1,500 IOPS.A solutions architect needs to conduct an analysis of the current database storage layer and make a recommendation about ways to reduce cost.

Which solution will provide the MOST cost savings without impacting the performance of the database?

Convert the data volume to the Cloud HDD (sc1) type. Leave the volume as 512 GB. Set the volume IOPS to 1,500.

Convert the data volume to the Provisioned IOPS SSD (io2) type. Resize the volume to 256 GB. Set the volume IOPS to 1,500.

Convert the data volume to the Provisioned IOPS SSD (io2) Block Express type. Leave the volume as 512 GB. Set the volume IOPS to 1,500.

Convert the data volume to the General Purpose SSD (gp3) type. Resize the volume to 256 GB. Set the volume IOPS to 1,500.

Explanations:

The Cold HDD (sc1) volume type is unsuitable for consistently high IOPS workloads like a database, as it is designed for infrequent access and low-cost storage, and it does not support setting specific IOPS.

Although Provisioned IOPS SSD (io2) supports high and consistent IOPS, it is more expensive than General Purpose SSD (gp3), making it less cost-effective for this use case.

Provisioned IOPS SSD (io2) Block Express is a premium offering for high-performance workloads, which is unnecessary for a workload with 1,500 IOPS and results in higher costs.

General Purpose SSD (gp3) is cost-effective and allows for separate scaling of IOPS and storage size. Reducing the volume to 256 GB and setting IOPS to 1,500 will meet performance needs while reducing costs.

2025-10-18

1 Comment

  1. Shirley
    Author

    I classify that the answer is:
    Convert the data volume to the General Purpose SSD (gp3) type. Resize the volume to 256 GB. Set the volume IOPS to 1,500.

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