A healthcare provider hosts a web application where medical imaging files must be stored. The storage solution must allow multiple web servers running on Amazon EC2 instances in different Availability Zones to read and write to the files simultaneously. In the event of an Availability Zone outage, the storage must remain available with a Recovery Time Objective (RTO) of zero. Which storage solution meets these requirements with the least configuration effort?
- Deploy an Amazon Elastic File System (Amazon EFS) file system with mount targets in each Availability Zone.Cevap
- BConfigure an Amazon S3 Glacier Flexible Retrieval vault and configure the EC2 instances to retrieve files directly via standard retrievals.
- CProvision a single Amazon EBS gp3 volume and enable Multi-Attach to share the volume across the EC2 instances in different Availability Zones.
- DSet up an Amazon RDS DB instance and use an RDS Read Replica in another Availability Zone as the primary file storage system.
Cevap
Deploy an Amazon Elastic File System (Amazon EFS) file system with mount targets in each Availability Zone.
Deploying an Amazon Elastic File System (Amazon EFS) is correct because it is a regional storage service that supports concurrent read/write access from EC2 instances in different Availability Zones. Because it replicates data across multiple Availability Zones, it offers native resilience and maintains availability with an RTO of zero if a single Availability Zone experiences an outage.
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Anahtar Kavram
Amazon EFS provides highly available, regional shared file systems that support concurrent read and write access from EC2 instances in multiple Availability Zones.
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