SOA-C02 · Question #388
A company runs hundreds of Amazon EC2 instances in a single AWS Region. Each EC2 instance has two attached 1 GiB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volumes. A critical…
The correct answer is A. Increase the size of the 1 GiB EBS volumes. With Amazon EBS Elastic Volumes, you can increase the volume size, change the volume type, or adjust the performance of your EBS volumes. If your instance supports Elastic Volumes, you can do so without detaching the volume or restarting the instance. This enables you to…
Question
A company runs hundreds of Amazon EC2 instances in a single AWS Region. Each EC2 instance has two attached 1 GiB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volumes. A critical workload is using all the available IOPS capacity on the EBS volumes. According to company policy, the company cannot change instance types or EBS volume types without completing lengthy acceptance tests to validate that the company's applications will function properly. A SysOps administrator needs to increase the I/O performance of the EBS volumes as quickly as possible. Which action should the SysOps administrator take to meet these requirements?
Options
- AIncrease the size of the 1 GiB EBS volumes.
- BAdd two additional elastic network interfaces on each EC2 instance.
- CTurn on Transfer Acceleration on the EBS volumes in the Region.
- DAdd all the EC2 instances to a cluster placement group.
How the community answered
(35 responses)- A77% (27)
- B3% (1)
- C6% (2)
- D14% (5)
Explanation
With Amazon EBS Elastic Volumes, you can increase the volume size, change the volume type, or adjust the performance of your EBS volumes. If your instance supports Elastic Volumes, you can do so without detaching the volume or restarting the instance. This enables you to continue using your application while the changes take effect. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-modify-volume.html They have Elastic Volumes in place (per the question) and that's exactly why it is specified in the question. As others have mentioned, increasing the volume size increases IOPS, up to the volume type max. For gp2, you can have a volume size of 1 GiB - 16 TiB with a max IOPS of 16,000 for the 16 TiB volume size. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volume-types.html
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