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Difficulty: HardDesign Azure Backup Solutions

An enterprise is deploying a critical database workload on Azure Virtual Machines. The virtual machines are configured with Premium SSD v2 managed disks and are deployed across multiple Availability Zones in the East US region.

You are designing a business continuity and disaster recovery solution using Azure Backup. The solution must meet the following requirements:
- Data Residency: All backup data must remain within the East US region.
- Resiliency: The backup infrastructure must survive a single Availability Zone outage within the primary region.
- Performance: The solution must support restoring the virtual machines from snapshots stored on local disks for up to 77 days to meet a recovery time objective (RTO) of less than 1515 minutes.
- Retention: Backups must be retained daily for 6060 days.

Which two of the following configuration options should you select to meet these requirements? Select two.

  1. Create a Recovery Services vault and configure its storage redundancy to Zone-Redundant Storage (ZRS).Answer
  2. B
    Create a Recovery Services vault and configure its storage redundancy to Locally Redundant Storage (LRS).
  3. Configure an Enhanced backup policy with a daily schedule, an instant restore retention of 77 days, and a vault-tier retention of 6060 days.Answer
  4. D
    Configure a Standard backup policy with a daily schedule, an instant restore retention of 77 days, and a vault-tier retention of 6060 days.
  5. E
    Create a Recovery Services vault and configure its storage redundancy to Geo-Redundant Storage (GRS).

Answer

Configure a Recovery Services vault with Zone-Redundant Storage (ZRS) redundancy, and configure an Enhanced backup policy with a daily schedule, an instant restore retention of 77 days, and a vault-tier retention of 6060 days.
To satisfy both the resiliency and data residency requirements, the Recovery Services vault must be configured with Zone-Redundant Storage (ZRS). ZRS replicates the backup data across three availability zones within the primary region (East US), ensuring the backups survive a zone outage while keeping the data locally within the region. To support VMs configured with Premium SSD v2 managed disks and an instant restore retention of 77 days, an Enhanced backup policy must be used. Standard backup policies do not support Premium SSD v2 or Ultra disks, and their instant restore retention is limited to a maximum of 55 days.

Step-by-Step Solution

1
Determine the required vault storage redundancy type based on residency and availability needs.
Zone-Redundant Storage (ZRS) is selected for the Recovery Services vault.
The solution must survive a zone outage within East US and must not replicate data outside of East US. ZRS satisfies both constraints. Locally Redundant Storage (LRS) fails the zone outage requirement, and Geo-Redundant Storage (GRS) violates the data residency constraint by replicating to a paired region.
2
Select the appropriate backup policy type based on disk compatibility and instant restore requirements.
An Enhanced backup policy is selected.
The virtual machines use Premium SSD v2 managed disks, which are only supported by the Enhanced backup policy. In addition, the requirement for 77 days of instant restore capability exceeds the 55-day limit of the Standard backup policy.
3
Configure the backup policy parameters.
Configure instant restore retention to 77 days and vault-tier retention to 6060 days within the Enhanced policy.
This setup aligns with the required daily retention periods and enables fast local restores from disk snapshots for up to 77 days.

Key Concept

Azure Backup vault storage redundancy and Enhanced policy capabilities for advanced disk types
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Topics

Design Azure Backup Solutions

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