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Difficulty: HardConfigure Blob Storage Lifecycle and Replication

You manage a standard General Purpose v2 (GPv2) storage account named `storagedata2026` in the East US region. The storage account is configured to use locally-redundant storage (LRS). A lifecycle management policy is active on `storagedata2026` that automatically moves blobs to the Archive tier if they have not been modified for 30 days. Currently, the storage account contains 10 TB of blobs in the Archive tier. You need to convert the storage account to use zone-redundant storage (ZRS). The solution must minimize application downtime and avoid manual data replication. Which of the following actions should you perform first?

  1. Rehydrate the archived blobs to the Hot or Cool tier, and then submit a support request to initiate a live migration.Answer
  2. B
    Modify the replication setting of the storage account to Zone-redundant storage (ZRS) in the Azure portal.
  3. C
    Delete the lifecycle management policy, and then submit a support request to initiate a live migration.
  4. D
    Change the replication setting of the storage account to Geo-redundant storage (GRS), and then initiate a customer-managed failover.

Answer

Rehydrate the archived blobs to the Hot or Cool tier, and then submit a support request to initiate a live migration.
To migrate an LRS storage account to ZRS while avoiding downtime (via live migration) and avoiding manual copying, you must submit a support request. However, a primary prerequisite for live migration to ZRS is that the storage account cannot contain any archived blobs. Therefore, the administrator must first rehydrate all archived blobs to the Hot or Cool tier before requesting the migration.

Step-by-Step Solution

1
Identify the migration constraint for converting LRS to ZRS.
Direct configuration change in the portal is not supported; a live migration request or manual migration is required.
Azure does not allow standard replication setting updates to switch between LRS and ZRS directly.
2
Check the prerequisites for requesting a live migration from LRS to ZRS.
The storage account must not contain any blobs in the Archive tier.
Archived blobs block the live migration process and will cause the migration request to fail.
3
Determine the necessary first step to satisfy the live migration requirements without manual data copy.
Rehydrate all existing archived blobs to Hot or Cool tier, then request the live migration.
This avoids manual data copying (minimizing downtime and effort) while satisfying the Archive tier restriction.

Key Concept

Prerequisites and migration paths for converting Azure Storage replication from LRS to ZRS when archived blobs are present.
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Topics

Configure Blob Storage Lifecycle and Replication

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