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Zorluk: OrtaAmazon S3 Storage Class and Lifecycle Optimization

A company stores scanned contract documents in an Amazon S3 Standard bucket. The documents are accessed frequently during the first 45 days after creation. After 45 days, access frequency drops significantly, but the documents must be retained for 3 years. The company requires immediate, millisecond-level access to any document throughout the entire retention period.

Which TWO S3 Lifecycle transitions should a SysOps administrator configure to meet these requirements in the most cost-effective manner?

  1. Transition objects from S3 Standard to S3 Standard-IA after 45 daysCevap
  2. Transition objects from S3 Standard-IA to S3 Glacier Instant Retrieval after 90 daysCevap
  3. C
    Transition objects from S3 Standard to S3 Standard-IA after 15 days
  4. D
    Transition objects from S3 Standard-IA to S3 Glacier Flexible Retrieval after 90 days
  5. E
    Transition objects from S3 Glacier Instant Retrieval to S3 Standard-IA after 180 days

Cevap

Transition objects from S3 Standard to S3 Standard-IA after 45 days, and transition objects from S3 Standard-IA to S3 Glacier Instant Retrieval after 90 days.
Transitioning to S3 Standard-IA after 45 days aligns with the drop in access frequency and satisfies the minimum residency constraint. Transitioning from S3 Standard-IA to S3 Glacier Instant Retrieval after 90 days is a valid sequence because the objects spend 45 days in S3 Standard-IA (exceeding the 30-day minimum) and S3 Glacier Instant Retrieval maintains the required millisecond retrieval latency.

Adım Adım Çözüm

1
Analyze the access pattern and latency requirements of the document storage lifecycle.
The documents require S3 Standard for the first 45 days, followed by a lower-cost tier that still supports millisecond-level access for the remainder of the 3-year compliance period.
This establishes the constraints: we cannot use Glacier Flexible Retrieval or Glacier Deep Archive due to their retrieval latencies (minutes to hours).
2
Evaluate the first transition from S3 Standard.
Transitioning from S3 Standard to S3 Standard-IA after 45 days matches the frequent access period and meets the S3 lifecycle requirement that objects must reside in S3 Standard for at least 30 days before transitioning to S3 Standard-IA.
This ensures the transition is cost-optimal and avoids early transition penalties.
3
Evaluate the second transition to a colder class that still supports millisecond-level retrieval.
Transitioning from S3 Standard-IA to S3 Glacier Instant Retrieval after 90 days is valid. Since the object transitioned to S3 Standard-IA at 45 days and then to S3 Glacier Instant Retrieval at 90 days, it spent 45 days in S3 Standard-IA, which meets the 30-day minimum storage duration for S3 Standard-IA.
This minimizes ongoing storage costs while adhering to all S3 storage class constraints and compliance access speeds.

Anahtar Kavram

Designing S3 Lifecycle transitions that respect minimum storage durations, transition directions, and access latency requirements.
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Amazon S3 Storage Class and Lifecycle Optimization

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