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Difficulty: HardDesign Azure Backup Solutions

You are designing a backup solution for a production SAP HANA database running on Azure Virtual Machines. You also need to back up the underlying Virtual Machines to allow rapid recovery of the OS and application configuration. The solution must satisfy the following requirements:
- Database transaction log backups must run every 1515 minutes to meet the database Recovery Point Objective (RPO).
- VM-level recovery points must support instant restore capabilities for up to 1414 days.
- All backup data must remain available even in the event of a primary Azure region failure.
- Storage costs for long-term backups must be minimized by archiving weekly full backups older than 180180 days to the Vault-archive tier.

Which configuration should you recommend?

  1. A
    Create a Recovery Services vault configured with Geo-Redundant Storage (GRS). Associate the database with a SAP HANA backup policy that runs log backups every 1515 minutes and tiers weekly full backups to the Vault-archive tier after 180180 days. Associate the Virtual Machines with a Standard VM backup policy that has instant restore retention set to 1414 days.
  2. B
    Create a Recovery Services vault configured with Locally Redundant Storage (LRS). Associate the database with a SAP HANA backup policy that runs log backups every 1515 minutes and tiers weekly full backups to the Vault-archive tier after 180180 days. Associate the Virtual Machines with an Enhanced VM backup policy that has instant restore retention set to 1414 days.
  3. Create a Recovery Services vault configured with Geo-Redundant Storage (GRS). Associate the database with a SAP HANA backup policy that runs log backups every 1515 minutes and tiers weekly full backups to the Vault-archive tier after 180180 days. Associate the Virtual Machines with an Enhanced VM backup policy that has instant restore retention set to 1414 days.Answer
  4. D
    Create a Recovery Services vault configured with Geo-Redundant Storage (GRS). Associate the database with a SAP HANA backup policy that runs log backups every 1515 minutes and tiers both log backups and weekly full backups to the Vault-archive tier after 180180 days. Associate the Virtual Machines with an Enhanced VM backup policy that has instant restore retention set to 1414 days.

Answer

Create a Recovery Services vault configured with Geo-Redundant Storage (GRS). Associate the database with a SAP HANA backup policy that runs log backups every 1515 minutes and tiers weekly full backups to the Vault-archive tier after 180180 days. Associate the Virtual Machines with an Enhanced VM backup policy that has instant restore retention set to 1414 days.
The correct configuration uses a Recovery Services vault with GRS to ensure backup availability across regions. To meet the 1414-day instant restore requirement for VMs, an Enhanced VM backup policy is required because standard policies only support up to 55 days of instant restore snapshot retention. Additionally, only full database backups can be tiered to the Vault-archive tier after 180180 days, while log backups remain in the standard vault tier to support database recovery operations.

Step-by-Step Solution

1
Determine the vault type and storage redundancy required.
A Recovery Services vault with GRS is selected.
SAP HANA and Azure VM backups must be stored in a Recovery Services vault. GRS is required to ensure backup data remains available if the primary region fails.
2
Determine the virtual machine backup policy type based on the instant restore retention requirement.
The Enhanced VM backup policy is selected.
The Standard VM backup policy only supports instant restore retention up to 55 days. The Enhanced policy is required to support 1414 days of instant restore retention.
3
Determine the database backup policy and tiering strategy.
A SAP HANA backup policy is configured with log backups running every 1515 minutes, and only the weekly full backups are tiered to the Vault-archive tier after 180180 days.
Only full backups are eligible for archiving to the Vault-archive tier, which matches the cost-optimization requirement for long-term retention.

Key Concept

Designing Azure Backup solutions by choosing the correct vault tier, policy type, storage redundancy, and archiving options for workload backups.
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Topics

Design Azure Backup Solutions

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