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Zorluk: OrtaData Lifecycle Management and Retention

A construction engineering firm stores high-resolution CAD blueprints of completed projects in an Azure Blob Storage General-purpose v2 (GPv2) storage account. The blueprints are accessed frequently during the project delivery phase, which lasts for 90 days. For the next 270 days (up to day 360 total), the blueprints are accessed occasionally for maintenance requests. The firm's customer service agreement guarantees that blueprints must be available for download in less than 30 seconds. After 360 days, the blueprints must be retained for 10 years (3,6503,650 days) for regulatory audit compliance. During this audit phase, retrieval delays of up to 12 hours are acceptable. The company wants to minimize storage costs while meeting all access and retention requirements. Which of the following lifecycle management policies should you recommend?

  1. A
    Transition blobs to the Archive tier after 90 days, and delete blobs after 3650 days.
  2. B
    Transition blobs to the Archive tier after 90 days, transition blobs to the Cool tier after 360 days, and delete blobs after 3650 days.
  3. Transition blobs to the Cool tier after 90 days, transition blobs to the Archive tier after 360 days, and delete blobs after 3650 days.Cevap
  4. D
    Transition blobs to the Cool tier after 90 days, and delete blobs after 3650 days without transitioning to the Archive tier.

Cevap

Transition blobs to the Cool tier after 90 days, transition blobs to the Archive tier after 360 days, and delete blobs after 3650 days.
Transitioning the blobs to the Cool tier after 90 days matches the requirement for low-latency retrieval up to day 360 at a lower cost than the Hot tier. Moving them to the Archive tier after 360 days minimizes storage costs for the remaining retention period where up to 12 hours of retrieval delay is acceptable. Finally, deleting the blobs after 3,650 days satisfies the long-term retention compliance requirement.

Adım Adım Çözüm

1
Analyze the access frequency and latency constraints for each phase.
Phase 1 (days 0-90): Frequent access, Hot tier (default). Phase 2 (days 91-360): Occasional access, sub-30 second retrieval required (requires online tier like Cool or Cold). Phase 3 (day 361-3650): Rare access, 12-hour latency acceptable (Archive tier is suitable).
Ensures the selected storage tiers meet the performance SLA of each lifecycle stage.
2
Evaluate the cost-effective transitions.
Transition to Cool tier after 90 days, then to Archive tier after 360 days.
Cool tier offers cheaper storage than Hot while maintaining millisecond retrieval times. Archive tier offers the lowest storage cost for the compliance phase where high retrieval latency is allowed.
3
Verify retention and deletion configuration.
Set deletion to occur after 3,650 days (1010 years) total.
Aligns the data deletion with the regulatory retention period.

Anahtar Kavram

Azure Blob Storage Lifecycle Management Tiers and Latency Constraints
Tahmini Süre:1m 30s
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Konular

Data Lifecycle Management and Retention

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