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Zorluk: ZorData Redundancy and High Availability

An organization is designing the storage architecture for two new workloads:

1. Workload A: A containerized application that requires a shared file system using the NFS 4.1 protocol. The storage must provide sub-millisecond latency and survive the outage of a single datacenter (zone) in the primary region.
2. Workload B: A reporting application that stores historical log archives as blobs. The archives must remain available for read operations even during a complete outage of the primary Azure region, without administrator intervention or triggering a storage account failover.

Which two storage configurations should you recommend to meet these requirements?

  1. For Workload A, deploy a Premium Files share in a storage account configured with Zone-Redundant Storage (ZRS).Cevap
  2. B
    For Workload A, deploy a Premium Files share in a storage account configured with Locally-Redundant Storage (LRS).
  3. For Workload B, deploy a General Purpose v2 (GPv2) storage account configured with Read-Access Geo-Redundant Storage (RA-GRS).Cevap
  4. D
    For Workload B, deploy a General Purpose v2 (GPv2) storage account configured with Geo-Redundant Storage (GRS).

Cevap

For Workload A, use a Premium Files share with Zone-Redundant Storage (ZRS). For Workload B, use a General Purpose v2 (GPv2) storage account with Read-Access Geo-Redundant Storage (RA-GRS).
The correct configurations are: (1) For Workload A, a Premium Files share with Zone-Redundant Storage (ZRS) because Premium Files is required for NFS 4.1 and low-latency workloads, and ZRS provides resilience against a single zone/datacenter outage in the primary region. (2) For Workload B, a General Purpose v2 (GPv2) storage account with Read-Access Geo-Redundant Storage (RA-GRS) because it allows the application to read the backup data from the secondary region endpoint immediately during a primary region outage without requiring a storage failover.

Adım Adım Çözüm

1
Analyze the requirements for Workload A.
Workload A requires NFS 4.1, sub-millisecond latency, and zone-level resilience.
NFS 4.1 is only supported on Premium Files in Azure. To survive a zone outage, the Premium Files account must use Zone-Redundant Storage (ZRS).
2
Analyze the requirements for Workload B.
Workload B requires read access to blob data in a secondary region during a primary region outage, without manual failover or admin intervention.
Standard Geo-Redundant Storage (GRS) replicates data to a secondary region but does not allow read access unless a failover is triggered. Read-Access Geo-Redundant Storage (RA-GRS) provides a read-only endpoint in the secondary region that is accessible at all times, including during a primary outage, satisfying the zero-intervention requirement.

Anahtar Kavram

Selecting appropriate Azure Storage tiers and redundancy configurations based on protocol support (NFS 4.1), latency expectations, zone-level resilience, and read-access availability in secondary regions during outages.
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Konular

Data Redundancy and High Availability

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