What should a solutions architect do to meet these requirements?
Create an Amazon Elastic File System (Amazon EFS) file system. Mount the EFS file system from each EC2 instance.
Create an Amazon S3 bucket. Allow access from all the EC2 instances in the VPC.
Create a file system on a Provisioned IOPS SSD (io2) Amazon Elastic Block Store (Amazon EBS) volume. Attach the EBS volume to all the EC2 instances.
Create file systems on Amazon Elastic Block Store (Amazon EBS) volumes that are attached to each EC2 instance. Synchronize the EBS volumes across the different EC2 instances.
Explanations:
Amazon EFS provides a scalable, fully managed elastic file system that can be mounted concurrently by multiple EC2 instances across different Availability Zones. This allows for rapid and concurrent read/write operations, making it ideal for the applications needing shared storage.
Amazon S3 is an object storage service and is not suitable for applications that require a hierarchical directory structure and low-latency access for rapid concurrent reads and writes. It is designed for object storage, not for file system operations that EFS provides.
While a Provisioned IOPS SSD (io2) EBS volume can provide high performance, it can only be attached to a single EC2 instance at a time. This setup does not allow concurrent access from multiple instances, which is necessary for shared storage requirements.
Creating separate EBS volumes for each EC2 instance would not allow for concurrent access or a shared file system. Synchronizing EBS volumes would introduce complexity and potential data consistency issues, and it does not meet the requirement for rapid concurrent reads and writes.
If memory serves me right, the answer is:
Create an Amazon Elastic File System (Amazon EFS) file system. Mount the EFS file system from each EC2 instance.