A company has an Azure subscription containing a standard General Purpose v2 (GPv2) storag… — Microsoft Azure Administrator (AZ-104)

A company has an Azure subscription containing a standard General Purpose v2 (GPv2) storage account named `storeprodwest2` in the West US 2 region. The storage account is configured with locally redundant storage (LRS) and contains a single blob container with $15\text{ TB}$ of data. A lifecycle management rule is currently active that transitions blobs older than $180$ days to the Archive tier, resulting in $4\text{ TB}$ of archived blobs. The company wants to migrate the storage account to zone-redundant storage (ZRS) with zero data loss and no downtime. You plan to request a live migration from Microsoft support. Which of the following actions must you perform before Microsoft can initiate the live migration?

Disable or modify the lifecycle management policy, rehydrate all archived blobs to the Hot or Cool tier, and then submit the support request for live migration.Answer
B
Assign the Storage Blob Data Contributor role to the Azure Support service principal, and then submit the support request for live migration.
C
Change the replication setting of the storage account to Geo-Redundant Storage (GRS) in the Azure portal, and then submit the support request for live migration.
D
Submit the support request for live migration directly, as Microsoft support will automatically migrate and maintain the archived blobs in the Archive tier of the new ZRS account.

Answer

Disable or modify the lifecycle management policy, rehydrate all archived blobs to the Hot or Cool tier, and then submit the support request for live migration.

Live migration from LRS to ZRS is blocked if the storage account contains any blobs in the Archive tier. To resolve this, the administrator must first stop the lifecycle policy from archiving further blobs, rehydrate all existing archived blobs to Hot or Cool, and then submit the support request.

Step-by-Step Solution

Analyze the migration blocker.

The storage account contains

4\text{ TB}

of archived blobs, which blocks live migration to ZRS.

Microsoft live migration from LRS to ZRS does not support accounts containing blobs in the Archive tier.

Disable or modify the lifecycle management policy.

The rule transitioning blobs to the Archive tier is disabled or paused.

This prevents rehydrated blobs from being automatically moved back to the Archive tier by the lifecycle engine before or during the migration.

Rehydrate the archived blobs.

All archived blobs are rehydrated to either the Hot or Cool tier.

Bringing the blobs back to an active online tier unblocks the live migration process.

Submit the support request.

The live migration request is successfully submitted and processed by Microsoft.

The account now meets the pre-requisites for live migration as all blobs reside in active tiers.

Key Concept

Replication live migration limitations and lifecycle management coordination

Question

Answer

Step-by-Step Solution

Key Concept

Common Mistakes

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