A financial technology company is migrating a critical, single-instance relational databas… — AWS Certified Solutions Architect - Associate

A financial technology company is migrating a critical, single-instance relational database to AWS. The database requires a single $2\text{ TB}$ volume that must sustain a consistent write throughput of $3,200\text{ MB/s}$ and $120,000\text{ IOPS}$ with sub-millisecond storage latency. Which Amazon EBS volume configuration should a solutions architect recommend to meet these performance requirements?

A single Amazon EBS $\text{io2}$ volume attached to an Amazon EC2 instance type that supports EBS Block ExpressAnswer
B
A single Amazon EBS $\text{gp3}$ volume provisioned with the maximum throughput and IOPS settings
C
A RAID $0$ configuration using eight Amazon EBS $\text{gp3}$ volumes to aggregate throughput and IOPS
D
A single Amazon EBS $\text{io1}$ volume provisioned with $120,000\text{ IOPS}$ and $3,200\text{ MB/s}$ throughput

Answer

A single Amazon EBS io2 volume attached to an Amazon EC2 instance type that supports EBS Block Express

The correct answer is a single Amazon EBS io2 volume attached to an Amazon EC2 instance type that supports EBS Block Express. Amazon EBS io2 Block Express volumes are designed for the most demanding I/O-intensive workloads, providing up to

256,000\text{ IOPS}

4,000\text{ MB/s}

throughput, and sub-millisecond latency per volume. This meets all specified constraints (

120,000\text{ IOPS}

and

3,200\text{ MB/s}

throughput) on a single volume.

Step-by-Step Solution

Analyze the workload's storage volume requirements.

The requirements are a single volume of

2\text{ TB}

size, needing

120,000\text{ IOPS}

3,200\text{ MB/s}

throughput, and consistent sub-millisecond latency.

This establishes the minimum baseline limits for selecting the EBS volume type.

Evaluate EBS gp3, io1, and standard io2 limits.

gp3 limits are

16,000\text{ IOPS}

and

1,000\text{ MB/s}

. io1 and standard io2 limits are

64,000\text{ IOPS}

and

1,000\text{ MB/s}

. None of these configurations meet the

120,000\text{ IOPS}

and

3,200\text{ MB/s}

throughput target on a single volume.

Understanding the limits of standard EBS volumes eliminates options that cannot scale to the required performance.

Identify EBS io2 Block Express capability.

EBS io2 Block Express volumes (available when io2 is attached to supported EC2 instances) support up to

256,000\text{ IOPS}

4,000\text{ MB/s}

throughput, and sub-millisecond latency on a single volume.

io2 Block Express provides the required IOPS, throughput, and sub-millisecond latency natively without the complexity of RAID configurations.

Key Concept

Amazon EBS io2 Block Express architecture and performance limits

Estimated Time:2m 0s

Question

Answer

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Key Concept

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