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Difficulty: EasyHigh-Performing and Scalable Storage Solutions

A company is deploying a database application on a single Amazon EC2 instance. The database requires a dedicated block storage volume with 100 GB100\text{ GB} of capacity and a guaranteed performance of 10,000 IOPS10,000\text{ IOPS}. The performance must be provisioned independently of the volume size. Which AWS storage solution is the most cost-effective option that meets these requirements?

  1. An Amazon EBS gp3 volumeAnswer
  2. B
    An Amazon EFS file system
  3. C
    An Amazon S3 Standard-IA bucket
  4. D
    An Amazon S3 Glacier Flexible Retrieval vault

Answer

An Amazon EBS gp3 volume is the most cost-effective block storage option that meets the requirements.
The correct answer is the option specifying an Amazon EBS gp3 volume. Amazon EBS gp3 is a General Purpose SSD volume type that allows customers to provision IOPS (up to 16,00016,000) and throughput (up to 1,000 MiB/s1,000\text{ MiB/s}) independently of the volume size. This provides a cost-effective solution for database workloads that require high IOPS (10,00010,000) with a relatively small storage capacity (100 GB100\text{ GB}), avoiding the need to over-provision storage size (as required by gp2) or pay for expensive provisioned IOPS volumes (io2).

Step-by-Step Solution

1
Identify the storage type required by the application.
The database application runs on a single Amazon EC2 instance and requires a dedicated block storage volume.
Databases require block storage (EBS) rather than file (EFS) or object (S3) storage for high-performance transactions.
2
Evaluate the IOPS scaling requirements.
The volume needs 10,000 IOPS10,000\text{ IOPS} for a 100 GB100\text{ GB} capacity, with performance scaled independently of size.
This requirement rules out volume types like gp2 where IOPS scale strictly with storage size (3 IOPS3\text{ IOPS} per GB, requiring a 3.33 TB3.33\text{ TB} volume to get 10,000 IOPS10,000\text{ IOPS}).
3
Select the most cost-effective EBS volume type that supports independent IOPS provisioning.
Amazon EBS gp3 supports up to 16,000 IOPS16,000\text{ IOPS} independently of storage size at a lower cost than Provisioned IOPS (io2).
GP3 meets the 10,000 IOPS10,000\text{ IOPS} limit easily and is more cost-effective than IO2.

Key Concept

Provisioning independent IOPS and throughput on SSD-backed Amazon EBS volumes (gp3) for database workloads.
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High-Performing and Scalable Storage Solutions

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