A financial services company is designing the storage infrastructure for a transaction auditing application in Azure. The application writes transaction logs to a standard General Purpose v2 (GPv2) storage account. The design must satisfy the following resilience requirements:
- Data must remain highly available even if an entire datacenter within the primary Azure region suffers a catastrophic power or cooling failure.
- In the event of a complete regional outage affecting the primary Azure region, the data must be recoverable from a secondary paired region.
Which two redundancy options should you recommend to meet these requirements?
- Geo-zone-redundant storage (GZRS)Answer
- Read-access geo-zone-redundant storage (RA-GZRS)Answer
- CRead-access geo-redundant storage (RA-GRS)
- DZone-redundant storage (ZRS)
Answer
The correct redundancy options are Geo-zone-redundant storage (GZRS) and Read-access geo-zone-redundant storage (RA-GZRS).
To survive a datacenter-level outage in the primary region, the storage account must use zone redundancy (ZRS) in the primary region. To protect against a regional disaster, it must replicate to a secondary region. The configurations that provide both primary zone-redundancy and secondary regional replication are Geo-zone-redundant storage (GZRS) and Read-access geo-zone-redundant storage (RA-GZRS).
Step-by-Step Solution
Key Concept
Selecting Azure Storage redundancy options that combine availability zone protection in the primary region with asynchronous replication to a secondary region.