You have two Azure virtual machines that run Windows Server.
You plan to create a failover cluster that will host the virtual machines.
You need to configure an Azure Storage account that will be used by the cluster as a cloud witness. The solution must maximize resiliency.
Which type of redundancy should you configure for the storage account?
Click on the arrows to vote for the correct answer
A. B. C. D.C
For Replication, you can select Locally-redundant storage (LRS) or Zone-redundant storage (ZRS) as applicable. ZRS offers more redundancy.
https://docs.microsoft.com/en-us/windows-server/failover-clustering/deploy-cloud-witnessWhen creating a failover cluster in Azure, a cloud witness is used as a tie-breaker for quorum when there is a split-brain scenario. A cloud witness is an Azure Storage account that provides a lightweight, cost-effective, and easily accessible option for a third-party quorum vote.
To configure the Azure Storage account for the failover cluster, you must select a redundancy type that ensures high availability and resiliency. Among the options available, Geo-redundant storage (GRS) and Geo-zone-redundant storage (GZRS) are the two recommended redundancy types for this scenario.
Geo-redundant storage (GRS) replicates data to a secondary region that is geographically distant from the primary region. This provides a high level of resiliency, as any potential failure in the primary region can be mitigated by accessing the replicated data in the secondary region.
Geo-zone-redundant storage (GZRS) takes GRS a step further by replicating data across multiple availability zones within a region. This provides even higher resiliency as it eliminates the possibility of a single point of failure within a region.
In contrast, locally-redundant storage (LRS) and zone-redundant storage (ZRS) are not recommended for this scenario. LRS replicates data within a single storage scale unit, which provides resiliency only within that unit. ZRS, on the other hand, replicates data across availability zones within a region, which does not provide the same level of resiliency as GZRS.
Therefore, the best option for this scenario would be to configure the Azure Storage account with Geo-zone-redundant storage (GZRS) to maximize resiliency and ensure high availability for the failover cluster.