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Difficulty: EasyAzure Storage Accounts, Blob, Disk, Files, and Storage Tiers

A company stores media files in Azure Blob Storage. The files are accessed frequently for the first 30 days. After 30 days, the files are rarely accessed but must remain online and available for immediate download. Which solution should the company implement to minimize storage costs after 30 days?

  1. Transition the blobs to the Cool access tier using an Azure Storage lifecycle management policy.Answer
  2. B
    Transition the blobs to the Archive access tier using an Azure Storage lifecycle management policy.
  3. C
    Replicate the blobs to another Azure region using Geo-redundant storage (GRS).
  4. D
    Host the files on an Azure Disk Storage volume attached to an Azure Virtual Machine.

Answer

Transition the blobs to the Cool access tier using an Azure Storage lifecycle management policy.
The correct option is to transition the blobs to the Cool access tier using an Azure Storage lifecycle management policy. The Cool tier is designed for data that is infrequently accessed but must remain immediately available online. A lifecycle management policy can automate this transition after 30 days, reducing storage costs without affecting application availability.

Step-by-Step Solution

1
Analyze the requirements for data availability and frequency of access.
The files need to be accessed frequently for 30 days (Hot tier), then infrequently but must remain online and available for immediate download (Cool tier).
This establishes that the Archive tier is not suitable because it takes hours to rehydrate and is offline.
2
Evaluate the cost-effective storage services and features that support automated tiering.
Azure Storage lifecycle management allows defining rules to automatically transition blobs to colder tiers (such as Cool) based on the age of the blob.
This automates the transition to minimize costs without manual intervention.

Key Concept

Azure Blob Storage access tiers and lifecycle management
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Topics

Azure Storage Accounts, Blob, Disk, Files, and Storage Tiers

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