49.5

 Thank you for the helpful information. You've proposed using Amazon Elastic Block Store to ensure high availability and fault tolerance for the computational modules, and Amazon Elastic Compute Cloud to provide a flexible, scalable solution for our Java-based application. I'm ready to get started with building the solution. Let's get started!

Feature Block (EBS) File (EFS) Object (S3)
Structure Blocks Files/Folders Objects (key + data)
Access Block-level (raw) File-level (NFS) API-level (REST/S3)
Mountable? Yes (EC2 only) Yes (multi-EC2) No
Scalability Per volume (manual) Auto scales Virtually unlimited
Performance High IOPS/low latency Shared throughput High throughput
Durability 99.999% 99.999% 99.999999999% (11 9s)
Best for DBs, OS disks Shared files Static assets, backups
Cost Medium Higher Lowest

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