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Zorluk: OrtaCost-Optimized Storage Tiering and Lifecycle Management

A smart home security provider uploads motion sensor activity logs to an Amazon S3 Standard bucket. The logs have an average file size of 320 KB320\text{ KB}. These logs are accessed frequently during the first 12 days12\text{ days} after upload. From day 1212 through day 4242, they are accessed occasionally but must remain available for immediate retrieval in the event of a security alert. After 42 days42\text{ days}, the logs are rarely accessed, but they must be retained for 5 years5\text{ years} for compliance and can tolerate a retrieval time of up to 12 hours12\text{ hours}. Which lifecycle configuration is the most cost-effective while meeting all access and retention requirements?

  1. A
    Transition the objects to S3 Standard-IA after 12 days12\text{ days}, and then transition them to Amazon S3 Glacier Deep Archive after 30 days30\text{ days}.
  2. B
    Transition the objects directly to Amazon S3 Glacier Deep Archive after 12 days12\text{ days}.
  3. Transition the objects to S3 Standard-IA after 12 days12\text{ days}, and then transition them to Amazon S3 Glacier Deep Archive after 42 days42\text{ days}.Cevap
  4. D
    Transition the objects to S3 Standard-IA after 12 days12\text{ days}, and then transition them to Amazon S3 Glacier Deep Archive after 25 days25\text{ days}.

Cevap

Transitioning the objects to S3 Standard-IA after 12 days12\text{ days}, and then transitioning them to Amazon S3 Glacier Deep Archive after 42 days42\text{ days} is the most cost-effective solution.
Transitioning the objects to S3 Standard-IA after 12 days12\text{ days} and then to Amazon S3 Glacier Deep Archive after 42 days42\text{ days} is the most cost-effective path. This ensures that the objects spend exactly 30 days30\text{ days} in S3 Standard-IA, which matches the minimum storage duration requirement and avoids early transition penalties. Once in Glacier Deep Archive, they are stored at the lowest possible cost while conforming to the 12-hour12\text{-hour} retrieval SLA.

Adım Adım Çözüm

1
Analyze the active and intermediate access windows.
Objects need S3 Standard for the first 12 days12\text{ days}. From day 1212 to 4242 (30 days30\text{ days}), they require occasionally accessed but immediate storage.
This determines when the transition to S3 Standard-IA should occur and how long they must remain there to satisfy retrieval requirements.
2
Check the S3 Standard-IA minimum storage duration constraint.
S3 Standard-IA has a minimum storage duration of 30 days30\text{ days}. Keeping objects in S3 Standard-IA from day 1212 to day 4242 (42−12=30 days42 - 12 = 30\text{ days}) meets this requirement exactly.
Transitioning objects out of S3 Standard-IA before 30 days30\text{ days} incurs an early transition charge, making the configuration less cost-effective.
3
Verify compliance and archival requirements for the final phase.
Transition to Amazon S3 Glacier Deep Archive after 42 days42\text{ days} is cost-optimized and supports the 12-hour12\text{-hour} retrieval SLA.
Amazon S3 Glacier Deep Archive is the lowest-cost storage class, and its 12-hour12\text{-hour} standard retrieval matches the compliance constraint.

Anahtar Kavram

Amazon S3 Lifecycle Policy Optimization
Tahmini Süre:1m 30s
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Cost-Optimized Storage Tiering and Lifecycle Management