Choosing High-Performing and Scalable Storage Solutions

1. What is the purpose of using a higher level of IOPS when ordering EBS volumes?
IOPS is a measure of data throughput per second for an EBS volume. Ordering a higher level of IOPS will greatly increase the performance of the EBS volume.

2. What type of EBS volume can be shared among multiple EC2 instances?
The EBS io2 volume can be shared with up to 16 EC2 instances that are hosted on the Nitro hypervisor.

3. What must you plan for when deciding whether to use storage-optimized EC2 instances?
Although ephemeral storage volumes are incredibly fast, they are volatile as they provide temporary storage that is deleted when the server is turned off or fails. You have to plan how to combine EBS volumes and back up your ephemeral volumes to storage, if necessary.

4. How are EFS file systems accessed from a VPC?
Mount targets must be created in each VPC for each subnet that needs access to the EFS shared storage.

5. How can you save money by storing files on an EFS file system?
The cost of running EFS can be greatly reduced by enabling infrequent access and creating a lifecycle policy. Files that have not been accessed for the defined period will then be moved to the infrequent access storage class automatically, saving you money.

6. What file system can be used for parallel processing of massive amounts of data stored in S3?
You can use FSx for Lustre to analyze your stored S3 data and scale to hundreds of gigabytes per second of throughput with millions of IOPS performing at sub-millisecond latencies.

7. What is the advantage of ordering a Snowball Edge device over ordering a Snowball device?
A Snowball Edge device combines compute processing and storage, allowing you to manage or compute your data records before sending the device back to Amazon.

8. What is the advantage of deploying a Storage Gateway Volume Gateway for a company that is migrating to AWS?
The Volume Gateway Cached mode allows you to store frequently used data locally, while storing the data records in S3. You can begin to move your data records to AWS as a migration project while still having access to the data records on a daily basis.