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Zorluk: OrtaDesign Storage and Non-Relational Data HA and DR

An organization named AeroQuest Logistics uses an Azure Storage account configured with Read-access geo-redundant storage (RA-GRS) to store critical transit logs. The primary region hosting the storage account experiences a prolonged regional outage. The logistics application needs to resume write operations as quickly as possible. Which action should you recommend?

  1. Initiate a customer-managed failover of the storage account to promote the secondary endpoint to the new primary endpoint.Cevap
  2. B
    Redirect the application write traffic to the secondary storage endpoint using the secondary connection string.
  3. C
    Create a new Locally redundant storage (LRS) account in the secondary region and copy the transit logs from the primary region.
  4. D
    Deploy Azure Site Recovery (ASR) to replicate the storage account to the secondary region and initiate an ASR failover.

Cevap

Initiate a customer-managed failover of the storage account to promote the secondary endpoint to the new primary endpoint.
Initiating a customer-managed failover updates the DNS records of the storage account, promoting the secondary endpoint to the new primary endpoint. This action restores both read and write capabilities, switching the replication to Locally redundant storage (LRS).

Adım Adım Çözüm

1
Evaluate the current storage configuration and availability.
The storage account is configured as RA-GRS, meaning read access is available in the secondary region, but write access is restricted to the primary region.
Identify the limitations of the current replication state during a primary region outage.
2
Determine the mechanism to restore write availability.
Promoting the secondary region to become the new primary region through a customer-managed failover is required to enable write access.
Failover updates the DNS endpoints, converting the secondary endpoint to the primary, which allows both read and write operations.
3
Select the correct action that supports the failover.
Initiating a customer-managed failover is the only native way to restore writes on the storage account in the secondary region.
This updates the storage account's DNS records so that the secondary endpoint is promoted to the primary endpoint.

Anahtar Kavram

Customer-managed failover for Azure Storage accounts (GRS/RA-GRS) promotes the secondary endpoint to the primary endpoint to restore write access during a primary region outage.
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Design Storage and Non-Relational Data HA and DR

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