An online education platform hosts its web application on Amazon EC2 instances distributed across multiple Availability Zones. The platform requires a resilient storage architecture that includes a shared file system for active course media files which must be concurrently accessible by all EC2 instances. Additionally, database backups must be stored with high durability, ensuring a Recovery Time Objective (RTO) of minutes and a Recovery Point Objective (RPO) of hours. Which two storage configurations should a solutions architect recommend to meet these requirements?
- Use Amazon Elastic File System (Amazon EFS) to provide a shared, regional file system for the active course media files.Cevap
- Store the database backups in Amazon S3 Standard to ensure high availability and immediate data retrieval.Cevap
- CProvision a single Amazon Elastic Block Store (Amazon EBS) gp3 volume and attach it to all EC2 instances across the Availability Zones to share the course media.
- DStore the database backups in Amazon S3 Glacier Flexible Retrieval using standard retrieval to minimize storage costs.
- EConfigure Amazon RDS Read Replicas as the target for restoring the database backups during a disaster recovery event.
Cevap
Use Amazon Elastic File System (Amazon EFS) for the shared file system, and store the database backups in Amazon S3 Standard.
The correct configurations are using Amazon EFS for shared multi-AZ storage and Amazon S3 Standard for backup storage. Amazon EFS is a regional service that supports concurrent read and write access from EC2 instances in multiple Availability Zones. Amazon S3 Standard provides active storage with immediate (millisecond-level) access, which easily satisfies the 5-minute Recovery Time Objective (RTO) for restoring backups.
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Anahtar Kavram
Selecting highly available, multi-AZ shared storage (Amazon EFS) and low-latency backup storage (Amazon S3 Standard) to meet specific application access and RTO requirements.
Tahmini Süre:1m 30s