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

Your team uploads historical application logs to the Archive access tier of an Azure Storage account. To troubleshoot a newly reported issue, a developer needs to analyze a log file from three months ago. When trying to download the file directly, the download fails. What is required to read the contents of this log file?

  1. The blob must be rehydrated to either the Hot or Cool access tier.Answer
  2. B
    The developer must wait for the direct download to complete, as the Archive tier allows direct reads but with a high latency delay.
  3. C
    The developer must configure the guest operating system and database engines on the storage account.
  4. D
    The administrator must log in to the virtual machine hosting the storage account to manually patch its guest operating system.

Answer

The blob must be rehydrated to either the Hot or Cool access tier.
Data in the Archive access tier is stored offline and is not directly readable. To read or download the data, the blob must first be rehydrated by shifting it to either the Hot or Cool access tier, or by copying it to a new blob in an online tier.

Step-by-Step Solution

1
Identify the storage tier of the requested file.
The file is in the Archive access tier.
Different tiers have different access characteristics and latency profiles.
2
Determine if the Archive tier allows direct data access.
Direct read operations on Archive tier data are not allowed and will fail.
The Archive tier is offline to minimize storage costs and is not directly readable.
3
Choose the method to make the data readable.
Rehydrate the blob by copying it to an online tier or changing its tier setting to Hot or Cool.
Rehydration brings the data back online so it can be accessed by users or applications.

Key Concept

Azure Storage Access Tiers and Archive Rehydration
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Topics

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

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