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Difficulty: MediumData Lifecycle Management and Retention

A healthcare provider stores patient diagnostic reports in an Azure Blob Storage General-purpose v2 (GPv2) account. The reports must be managed according to the following requirements:
- Reports are frequently accessed and updated during the first 14 days after creation.
- Between 15 and 180 days, reports are accessed occasionally. When requested, they must be available for immediate, sub-second retrieval.
- After 180 days, reports are rarely accessed, but must be retained for 7 years (2,555 days) to meet regulatory compliance. For these reports, a retrieval latency of several hours is acceptable.
- All reports must be deleted after 7 years.

You need to design a lifecycle management policy to minimize storage costs while meeting the access and retention requirements.

Which two actions should you include in the lifecycle management policy? (Select two.)

  1. Transition blobs to cool storage 14 days after modification.Answer
  2. Transition blobs to archive storage 180 days after modification.Answer
  3. C
    Transition blobs to archive storage 14 days after modification.
  4. D
    Transition blobs to archive storage immediately upon creation.

Answer

Include the actions to transition blobs to cool storage 14 days after modification and transition blobs to archive storage 180 days after modification.
The lifecycle policy must transition the blobs to cool storage 14 days after modification to save costs while keeping them immediately accessible, and then transition them to archive storage 180 days after modification to achieve the lowest storage cost for the remainder of the 7-year retention period where retrieval latency is acceptable.

Step-by-Step Solution

1
Analyze access frequency and latency requirements for the first phase (0-14 days).
Reports are frequently accessed and modified, requiring the default Hot storage tier.
Hot tier provides the lowest access costs for active data.
2
Analyze requirements for the second phase (15-180 days).
Reports must be retrieved immediately (sub-second latency) but are accessed occasionally, matching the Cool storage tier.
Transitioning to the Cool tier after 14 days reduces storage costs while maintaining immediate availability.
3
Analyze requirements for the third phase (after 180 days).
Reports are rarely accessed, can tolerate hours of retrieval latency, and must be stored for 7 years (2,555 days), matching the Archive storage tier.
Transitioning to the Archive tier after 180 days minimizes the cost of long-term compliance retention.

Key Concept

Azure Blob Storage lifecycle management policy design balancing retrieval latency and storage cost optimization.
Estimated Time:1m 30s
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Topics

Data Lifecycle Management and Retention

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