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Difficulty: EasyBlob, File, and Disk Storage Solutions

You are designing a storage solution for a shared file repository in Azure. The repository must be accessible simultaneously by multiple Azure Virtual Machines (VMs) using the SMB protocol. The storage configuration must ensure that data remains available even if a single physical datacenter in the primary region undergoes an outage. Which two storage configurations should you recommend to meet these requirements? (Select two.)

  1. Azure Files premium tier configured with zone-redundant storage (ZRS)Answer
  2. Azure Files transaction optimized tier configured with zone-redundant storage (ZRS)Answer
  3. C
    Azure Files premium tier configured with locally redundant storage (LRS)
  4. D
    Azure Page Blobs configured with zone-redundant storage (ZRS)

Answer

Azure Files premium tier configured with zone-redundant storage (ZRS) and Azure Files transaction optimized tier configured with zone-redundant storage (ZRS)
To support multi-VM shared file access over the SMB protocol while ensuring resilience against a single datacenter outage, you should use Azure Files (which natively supports SMB) configured with zone-redundant storage (ZRS). Both the premium tier and transaction-optimized tier of Azure Files can be configured with ZRS to meet these constraints.

Step-by-Step Solution

1
Analyze protocol requirements
The solution requires SMB protocol access for multiple VMs. Azure Files natively supports SMB, while Page Blobs are virtual disks and not suitable for multi-VM shared file access over SMB.
This filters out page blob options.
2
Analyze high availability and disaster resilience requirements
The storage must survive a single datacenter outage in the region. Zone-redundant storage (ZRS) replicates data across three separate availability zones, whereas locally redundant storage (LRS) keeps data within a single datacenter.
This rules out LRS configurations.
3
Select the compliant storage configurations
Both the premium and transaction-optimized tiers of Azure Files configured with ZRS satisfy all protocol and resiliency requirements.
Both configurations meet the business and technical constraints.

Key Concept

Selecting the appropriate Azure Files tier and redundancy option to support SMB access with availability zone protection
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Topics

Blob, File, and Disk Storage Solutions

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