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Difficulty: MediumDesign Azure Backup Solutions

You are designing a backup solution for a production SAP HANA database running on an Azure virtual machine. The solution must satisfy the following requirements:
- Retain weekly full backups for 365 days.
- Ensure backup data is resilient to a primary region outage.
- Enable database restoration to a secondary paired region with minimal delay in the event of a primary region disaster.

Which backup configuration should you recommend?

  1. A Recovery Services vault configured with Geo-Redundant Storage (GRS) and Cross-Region Restore (CRR) enabled.Answer
  2. B
    A Recovery Services vault configured with Locally Redundant Storage (LRS) and Cross-Region Restore (CRR) enabled.
  3. C
    A Backup vault configured with Read-Access Geo-Redundant Storage (RA-GRS) to support writes in the secondary region.
  4. D
    A Recovery Services vault configured with Geo-Redundant Storage (GRS) and the instant restore snapshot retention set to 365 days.

Answer

A Recovery Services vault configured with Geo-Redundant Storage (GRS) and Cross-Region Restore (CRR) enabled.
The correct configuration leverages a Recovery Services vault, which is the required vault type for SAP HANA on Azure VMs. Using Geo-Redundant Storage (GRS) with Cross-Region Restore (CRR) enabled ensures the backups are replicated to the secondary paired region and can be restored there even if the primary region experiences a complete outage.

Step-by-Step Solution

1
Determine the required vault type for the workload.
SAP HANA databases running on Azure VMs must be backed up using a Recovery Services vault rather than a Backup vault.
Azure Backup categorizes workloads; databases on virtual machines are supported under Recovery Services vaults.
2
Select the appropriate storage redundancy and recovery configuration to survive a regional outage.
Configure the vault storage with Geo-Redundant Storage (GRS) and enable Cross-Region Restore (CRR).
GRS replicates data to a paired region, and CRR allows you to restore backup data in the secondary region even when the primary region is healthy or degraded.
3
Configure the backup retention policy parameters.
Set the vault-tier retention to 365 days and ensure the local instant restore snapshot retention is kept within the default limit (1-5 days).
Long-term retention must be configured on the vault tier, as instant restore snapshots cannot exceed the maximum supported limits (up to 30 days for enhanced policies).

Key Concept

Selecting the correct vault type and replication architecture to support disaster recovery for database workloads on Azure VMs.
Estimated Time:1m 30s
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Design Azure Backup Solutions

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