Azure Storage Redundancy Options
Question
Your company has datacenters in Los Angeles and New York. The company has a Microsoft Azure subscription.
You are configuring the two datacenters as geo-clustered sites for site resiliency.
You need to recommend an Azure storage redundancy option.
You have the following data storage requirements:
-> Data must be stored on multiple nodes.
-> Data must be stored on nodes in separate geographic locations.
-> Data can be read from the secondary location as well as from the primary location
Which of the following Azure stored redundancy options should you recommend?
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.B
RA-GRS allows you to have higher read availability for your storage account by providing read only access to the data replicated to the secondary location. Once you enable this feature, the secondary location may be used to achieve higher availability in the event the data is not available in the primary region. This is an
opt-in feature which requires the storage account be geo-replicated.
https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy-grs#read-access-geo-redundant-storageBased on the given requirements, the recommended Azure storage redundancy option is Geo-redundant storage (GRS), option A.
Geo-redundant storage (GRS) replicates data to a secondary datacenter in a different geographic region, providing a high level of durability and availability. In this case, since the company has datacenters in Los Angeles and New York, GRS will replicate the data to a secondary datacenter in a different region, ensuring that data is stored on nodes in separate geographic locations. GRS also provides read access to the secondary location, allowing for data to be read from both primary and secondary locations.
Read-only geo-redundant storage (option B) is not suitable because it does not allow for write access to the secondary location, which is a requirement in this case.
Zone-redundant storage (option C) replicates data across multiple availability zones within a single Azure region, which is not suitable in this case since the requirement is to store data in separate geographic locations.
Locally redundant storage (option D) replicates data within a single datacenter, providing a low level of durability and availability, which is not suitable in this case since the requirement is to store data on multiple nodes in separate geographic locations.
Therefore, the recommended Azure storage redundancy option is Geo-redundant storage (GRS).
