A company needs to back up on-premises NFS file storage to Amazon S3 and retain archives after 5 days. They can accept a multi-day retrieval time for archived data. Which solution is the MOST cost-effective while providing NFS compatibility?
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Correct answer: Deploy an AWS Storage Gateway File Gateway backed by an S3 bucket. Copy files from the on-premises NFS storage to the File Gateway. Create an S3 lifecycle rule to transition objects to S3 Glacier Deep Archive after 5 days..
Why this is the answer
The correct solution uses AWS Storage Gateway File Gateway because it provides NFS compatibility, allowing seamless backup of on-premises NFS storage. Backing it with an S3 bucket enables scalable storage. The key to cost-effectiveness for archives with multi-day retrieval tolerance is transitioning objects to S3 Glacier Deep Archive after 5 days via a lifecycle rule. This storage class offers the lowest cost for long-term archiving. Option 1 is incorrect because S3 Standard-Infrequent Access is more expensive than Glacier Deep Archive for data with multi-day retrieval tolerance. Option 2 is incorrect because Volume Gateway provides block storage, not NFS file access, and S3 Glacier Deep Archive is the correct archival tier, but the gateway type is wrong. Option 3 is incorrect because Tape Gateway emulates a virtual tape library and is not suitable for direct NFS file backups, and S3 Standard-Infrequent Access is not the most cost-effective archival tier.
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