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Zorluk: Çok zorDesign Azure Backup Solutions

You are designing a business continuity and disaster recovery solution for a suite of critical Azure Virtual Machines hosting an enterprise resource planning (ERP) application.

The solution must satisfy the following technical and compliance requirements:
1. Operational recovery: Must support instant recovery of VMs directly from local snapshots for any recovery points created within the last 14 days.
2. Compliance retention: Backups must be retained in vault storage for 365 days.
3. Regional resiliency: Backups must be replicated to a secondary paired region. Administrators must be able to perform test restores in the secondary region at any time, including when the primary region is fully operational.

Which vault type, storage redundancy, and backup policy configuration should you recommend?

  1. A Recovery Services vault configured with Geo-Redundant Storage (GRS) and Cross Region Restore (CRR) enabled, using an Enhanced backup policy with the instant restore retention set to 14 days.Cevap
  2. B
    A Recovery Services vault configured with Geo-Redundant Storage (GRS) and Cross Region Restore (CRR) enabled, using a Standard backup policy with the instant restore retention set to 14 days.
  3. C
    A Backup vault configured with Geo-Redundant Storage (GRS) and Cross Region Restore (CRR) enabled, using an Enhanced backup policy with the instant restore retention set to 14 days.
  4. D
    A Recovery Services vault configured with Locally Redundant Storage (LRS) and Cross Region Restore (CRR) enabled, using an Enhanced backup policy with the instant restore retention set to 14 days.

Cevap

A Recovery Services vault configured with Geo-Redundant Storage (GRS) and Cross Region Restore (CRR) enabled, using an Enhanced backup policy with the instant restore retention set to 14 days.
The correct configuration uses a Recovery Services vault (which is the correct vault type for Azure Virtual Machines) configured with Geo-Redundant Storage (GRS) and Cross Region Restore (CRR) enabled, allowing read/restore access to the secondary region at all times. Additionally, it specifies an Enhanced backup policy to accommodate the 14-day instant restore snapshot retention requirement, which exceeds the 5-day limit of Standard backup policies.

Adım Adım Çözüm

1
Determine the correct vault type for Azure Virtual Machine backups.
Identify that Recovery Services vaults are required for Azure VM backups, eliminating options that use Backup vaults.
Azure Backup uses Recovery Services vaults for VMs, SQL Server/SAP HANA on VMs, and Azure Files, while Backup vaults are used for newer workloads like Azure Disks, Blobs, and PostgreSQL.
2
Determine the required vault storage redundancy and restore capabilities.
Identify that Geo-Redundant Storage (GRS) with Cross Region Restore (CRR) is required, eliminating Locally Redundant Storage (LRS).
To satisfy the requirement of performing test restores in the secondary region at any time (even when the primary region is healthy), Cross Region Restore must be enabled, which requires GRS.
3
Determine the backup policy sub-type and parameters required to meet the retention criteria.
Identify that an Enhanced backup policy is required to support a 14-day instant restore retention window.
Standard backup policies only support keeping instant restore snapshots for 1 to 5 days. To keep snapshots for 14 days (which are used for instant recovery), an Enhanced policy is needed as it supports up to 30 days of instant restore retention.

Anahtar Kavram

Azure Backup Vault Selection, Policy Tiers, and Redundancy Options
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Design Azure Backup Solutions

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