Question

Difficulty: MediumDesign Azure Backup Solutions

You are designing a backup solution for a pool of Azure Virtual Machines hosting a business application. The solution must meet the following requirements:
- Retain daily backups for 3030 days.
- Retain weekly backups for 33 years and store them in the most cost-effective storage tier available.
- Ensure backup data is resilient against a zone outage within the primary region.

Which two configurations should you include in the backup design?

  1. A Recovery Services vault configured with zone-redundant storage (ZRS) redundancyAnswer
  2. An Enhanced backup policy with a tiering rule to move weekly recovery points to the Vault-archive tierAnswer
  3. C
    A Recovery Services vault configured with locally redundant storage (LRS) redundancy
  4. D
    A Standard backup policy with instant restore retention set to 3 years

Answer

Configure a Recovery Services vault with zone-redundant storage (ZRS) redundancy and implement an Enhanced backup policy with a tiering rule to move weekly recovery points to the Vault-archive tier.
To satisfy the resiliency requirement against zone-level failures, the Recovery Services vault must use zone-redundant storage (ZRS). To store the weekly backups cost-effectively for 3 years, the solution must use an Enhanced backup policy that supports tiering the recovery points to the Vault-archive tier, which offers the lowest storage cost for long-term archival data.

Step-by-Step Solution

1
Select the appropriate storage redundancy for the backup vault to survive a zone outage.
Configure the Recovery Services vault with zone-redundant storage (ZRS).
ZRS replicates the backup data synchronously across three availability zones, ensuring data access even if a zone outage occurs.
2
Select the backup policy type and long-term retention storage strategy.
Deploy an Enhanced backup policy with a tiering rule pointing to the Vault-archive tier.
Only Enhanced backup policies support tiering weekly recovery points to the Vault-archive tier, which drastically reduces storage costs for the required 3-year retention period.

Key Concept

Designing resilient and cost-optimized Azure Virtual Machine backup solutions using vault redundancy tiers and Enhanced backup policy archiving rules.
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