Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 301 discussion

AWS DataSync is a data transfer service that can copy large amounts of data between on-premises storage and Amazon FSx for Windows File Server at high speeds. It allows you to control the amount of bandwidth used during data transfer. • DataSync uses agents at the source and destination to automatically copy files and file metadata over the network. This optimizes the data transfer and minimizes the impact on your network bandwidth. • DataSync allows you to schedule data transfers and configure transfer rates to suit your needs. You can transfer 30 TB within 5 days while controlling bandwidth usage. • DataSync can resume interrupted transfers and validate data to ensure integrity. It provides detailed monitoring and reporting on the progress and performance of data transfers.

As read a little bit, I assume that B (FSx File Gateway) requires a little bit more configuration rather than C (DataSync). From Stephane Maarek course explanation about DataSync: An online data transfer service that simplifies, automates, and accelerates copying large amounts of data between on-premises storage systems and AWS Storage services, as well as between AWS Storage services. You can use AWS DataSync to migrate data located on-premises, at the edge, or in other clouds to Amazon S3, Amazon EFS, Amazon FSx for Windows File Server, Amazon FSx for Lustre, Amazon FSx for OpenZFS, and Amazon FSx for NetApp ONTAP.

Even if we allocate 60% of total bandwidth for the transfer, that would take 5d2h. Considering that " many other departments in the university share", that wouldn't be feasible. Ref. https://expedient.com/knowledgebase/tools-and-calculators/file-transfer-time-calculator/ On the other hand, snowcone isn't also a great option, because "you will receive the Snowcone device in approximately 4-6 days". Ref. https://aws.amazon.com/snowcone/faqs/#:~:text=You%20will%20receive%20the%20Snowcone,console%20for%20each%20Snowcone%20device.

Snow cone can support up to 8TB for HDD and 15TB for each SSD devices. Shipped within 4-6 days. Data migration can begin on next 5 days. Does not use any amount of bandwidth and impact the production network. Device came with 1G and 10G Base-T Ethernet port. That's the Maximum performance in data transfer. defined in the question.

Bandwidth control = Data Sync https://docs.aws.amazon.com/datasync/latest/userguide/configure-bandwidth.html

Bandwidth Optimization and Control Transferring hot or cold data should not impede your business. DataSync is equipped with granular controls to optimize bandwidth consumptions. Throttle transfer speeds up to 10 Gbps during off hours and set limits when network availability is needed elsewhere

C. AWS DataSync

https://aws.amazon.com/datasync/features/

"Amazon FSx File Gateway" is for storing data, not for migrating. So the answer should be C.

Snowcone to small and delivertime to long. With DataSync you can set bandwidth limits - so this is fine solution.

Why not B?

A not possible because Snowcone it's just 8TB and it takes 4-6 business days to deliver B why cannot be https://aws.amazon.com/storagegateway/file/fsx/? C I don't really get this D cannot be because not compatible - https://aws.amazon.com/aws-transfer-family/

Voting C

C. - DataSync is Correct. A. Snowcone is incorrect. The question says data migration must take place within the next 5 days.AWS says: If you order, you will receive the Snowcone device in approximately 4-6 days.

DataSync can be used to migrate data between on-premises Windows file servers and Amazon FSx for Windows File Server with its compatibility for Windows file systems. The laboratory needs to migrate a large amount of data (30 TB) within a relatively short timeframe (5 days) and limit the impact on other departments' network traffic. Therefore, AWS DataSync can meet these requirements by providing fast and efficient data transfer with network throttling capability to control bandwidth usage.

https://docs.aws.amazon.com/datasync/latest/userguide/configure-bandwidth.html

https://aws.amazon.com/datasync/