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Difficulty: MediumDesign Azure Backup Solutions

A retail company's transactional data is hosted on Azure Virtual Machines. You need to configure Azure Backup for these VMs to satisfy the following requirements:
- Daily backups must run automatically.
- The Recovery Point Objective (RPO) must be 24 hours.
- File-level restores from backups taken within the last 4 days must be performed instantly without waiting for data transfer from the vault.
- All backups must be kept for 60 days.
- Backups must remain available even if the primary Azure region suffers a complete disaster, while keeping storage costs to a minimum.
Which configuration should you recommend?

  1. A Recovery Services vault configured with Geo-Redundant Storage (GRS), and a backup policy with instant restore retention set to 4 days and vault-standard retention set to 60 days.Answer
  2. B
    A Recovery Services vault configured with Locally Redundant Storage (LRS), and a backup policy with instant restore retention set to 4 days and vault-standard retention set to 60 days.
  3. C
    A Recovery Services vault configured with Geo-Redundant Storage (GRS), and a backup policy with instant restore retention set to 1 day and vault-standard retention set to 60 days, relying on the vault-standard tier for instant recovery of files older than 1 day.
  4. D
    A Recovery Services vault configured with Geo-Redundant Storage (GRS), and a backup policy with instant restore retention set to 4 days, with all vault backup data immediately tiered to the vault-archive tier.

Answer

A Recovery Services vault configured with Geo-Redundant Storage (GRS), and a backup policy with instant restore retention set to 4 days and vault-standard retention set to 60 days.
Configuring a Recovery Services vault with Geo-Redundant Storage (GRS) satisfies the requirement to survive a regional outage at a lower cost than Read-Access Geo-Redundant Storage (RA-GRS) or Zone-Redundant Storage (ZRS) depending on regional availability. To perform file-level recoveries instantly from the last 4 days without waiting for data transfer from the vault, the backup policy's instant restore retention must be configured to at least 4 days. This keeps snapshots locally on the source virtual machine's disks. Retaining the backups in the vault for 60 days ensures long-term operational recovery needs are met.

Step-by-Step Solution

1
Determine the storage redundancy type based on regional resilience and cost requirements.
Select Geo-Redundant Storage (GRS) to survive a regional outage, as Locally Redundant Storage (LRS) only protects against local hardware failures.
The scenario requires that backup data survive a regional disaster at minimum cost.
2
Configure the backup policy's instant restore snapshot retention parameter.
Set the instant restore retention to 4 days.
This keeps snapshots on the source virtual machine's local disks for up to 4 days, allowing immediate file-level recoveries without vault transfer latency.
3
Configure the long-term vault-standard retention parameter in the backup policy.
Set the vault-standard retention to 60 days.
This retains the backups in the Recovery Services vault for the full duration specified by the compliance requirements.

Key Concept

Designing Azure Backup solutions that balance regional resiliency, instant restore snapshot retention, and vault-standard tier retention.
Estimated Time:1m 0s
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Topics

Design Azure Backup Solutions

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