Question

Difficulty: MediumAzure Files Backup and Restore

You manage an Azure subscription containing a Recovery Services vault named rsv-prod-east and a Premium storage account named sa-finance-east in the East US region. The storage account hosts an SMB file share named accounting-records. The firewall of sa-finance-east is configured to restrict access to selected virtual networks. You attempt to configure backup for the accounting-records file share using the rsv-prod-east vault, but the storage account is not discovered during the configuration process. What should you configure to resolve this issue?

  1. A
    Assign the Storage File Data Privileged Contributor role to the Recovery Services vault's managed identity.
  2. B
    Configure a private endpoint for the Recovery Services vault in the same subnet as the storage account.
  3. In the Firewalls and virtual networks settings of sa-finance-east, select 'Allow Azure services on the trusted services list to access this storage account'.Answer
  4. D
    Assign the Backup Operator role to the storage account's resource group.

Answer

In the Firewalls and virtual networks settings of sa-finance-east, select 'Allow Azure services on the trusted services list to access this storage account'.
The correct option is to enable the 'Allow Azure services on the trusted services list to access this storage account' setting under the Firewalls and virtual networks configuration of the storage account. Azure Backup is a trusted service, and enabling this exception allows the Recovery Services vault to bypass the firewall rules and successfully communicate with the storage account to discover and back up the SMB file share.

Step-by-Step Solution

1
Analyze the problem scenario
The Premium SMB file share backup configuration fails because the storage account has its firewall enabled, blocking the vault's access.
Before configuring backup, the Recovery Services vault must be able to communicate with the storage account to discover file shares.
2
Determine the firewall bypass mechanism
Identify that Azure Backup is categorized as a trusted Microsoft service.
By enabling the trusted services exception on the storage account firewall, Azure Backup can securely access the storage account over the network.
3
Select the correct configuration option
Selecting the option to allow trusted Microsoft services to access the storage account resolves the network communication issue.
This allows the vault to discover and successfully back up the SMB file share.

Key Concept

Bypassing Azure Storage firewall using trusted Microsoft services exception for backup operations
Estimated Time:1m 30s
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