AWS Certified Solutions Architect – ProfessionalAccelerate Workload Migration and ModernizationHard
A global media company is migrating a large video archive (hundreds of petabytes) from on-premises tape libraries to AWS. The archive is rarely accessed, but when it is, retrieval must be possible within a few hours. Cost optimization for storage is the primary concern, followed by reliable retrieval. Which AWS storage service and strategy should be employed?
- AAmazon S3 Glacier Instant Retrieval for rapid access to archived data.
- BAmazon S3 Glacier Deep Archive with S3 Lifecycle policies.
- CAmazon S3 Standard for immediate access.
- DAmazon FSx for Lustre for high-performance file access.
Show answer & explanationAnswer & explanation
Correct answer: B. Amazon S3 Glacier Deep Archive with S3 Lifecycle policies.
Amazon S3 Glacier Deep Archive is the most cost-effective storage class for long-term archiving of infrequently accessed data (hundreds of petabytes). With retrieval times ranging from 12 hours, it meets the 'within a few hours' requirement for rarely accessed data when considering the extreme cost savings. S3 Lifecycle policies can automate transitions if data retention requirements change.
Why the other options are wrong
- A. S3 Glacier Instant Retrieval offers millisecond retrieval, but at a higher cost than Deep Archive, which is not the primary concern. For 'rarely accessed' and 'cost optimization primary', Deep Archive is more suitable.
- C. S3 Standard is too expensive for rarely accessed, long-term archives of hundreds of petabytes.
- D. Amazon FSx for Lustre is a high-performance file system for compute-intensive workloads, not suitable or cost-effective for long-term, rarely accessed archiving.
Amazon S3 Glacier Storage Classes
A family of Amazon S3 storage classes optimized for archiving data that is infrequently accessed, offering various retrieval times and cost points.
- Includes S3 Glacier Instant Retrieval, S3 Glacier Flexible Retrieval, and S3 Glacier Deep Archive.
- Designed for cost-effective long-term data retention.
- Different classes offer trade-offs between retrieval speed and cost.
Memory trick: Cost vs. Time: Standard, IA, Glacier, Deep Archive.