Which action will meet these requirements?

A SysOps administrator has launched a large general purpose Amazon EC2 instance to regularly process large data files. The instance has an attached 1 TB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volume. The instance also is EBS-optimized. To save costs, the SysOps administrator stops the instance each evening and restarts the instance each morning.

When data processing is active, Amazon CloudWatch metrics on the instance show a consistent 3.000 VolumeReadOps. The SysOps administrator must improve the I/O performance while ensuring data integrity.

Which action will meet these requirements?
A . Change the instance type to a large, burstable, general purpose instance.
B . Change the instance type to an extra large general purpose instance.
C . Increase the EBS volume to a 2 TB General Purpose SSD (gp2) volume.
D . Move the data that resides on the EBS volume to the instance store.

View Answer

Answer: C

Explanation:

Step-by-Step

Understand the Problem:

The EC2 instance processes large data files and uses a 1 TB General Purpose SSD (gp2) EBS volume.

CloudWatch metrics show consistent high VolumeReadOps.

The requirement is to improve I/O performance while ensuring data integrity.

Analyze the Requirements:

Improve I/O performance.

Maintain data integrity.

Evaluate the Options:

Option A: Change the instance type to a large, burstable, general-purpose instance.

Burstable instances provide a baseline level of CPU performance with the ability to burst to a higher level when needed. However, this does not address the I/O performance directly.

Option B: Change the instance type to an extra-large general-purpose instance.

A larger instance type might improve performance, but it does not directly address the I/O performance of the EBS volume.

Option C: Increase the EBS volume to a 2 TB General Purpose SSD (gp2) volume.

Increasing the size of a General Purpose SSD (gp2) volume can increase its IOPS. The larger the volume, the higher the baseline performance in terms of IOPS.

Option D: Move the data that resides on the EBS volume to the instance store.

Instance store volumes provide high I/O performance but are ephemeral, meaning data will be lost if the instance is stopped or terminated. This does not ensure data integrity.

Select the Best Solution:

Option C: Increasing the EBS volume size to 2 TB will provide higher IOPS, improving I/O performance while maintaining data integrity.

Reference: Amazon EBS Volume Types

General Purpose SSD (gp2) Volumes

Increasing the size of the General Purpose SSD (gp2) volume is an effective way to improve I/O performance while ensuring data integrity remains intact.