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Difficulty: EasyConfigure Blob Storage Lifecycle and Replication

You are planning the replication configuration for a new Azure Storage account. The storage account must meet the following requirements:

* Provide protection against a datacenter failure within the primary region by replicating data across three availability zones.
* Provide protection against a regional disaster by replicating data to a secondary region.

Which two replication options should you select to meet these requirements?

  1. Geo-zone-redundant storage (GZRS)Answer
  2. Read-access geo-zone-redundant storage (RA-GZRS)Answer
  3. C
    Geo-redundant storage (GRS)
  4. D
    Read-access geo-redundant storage (RA-GRS)

Answer

Geo-zone-redundant storage (GZRS) and Read-access geo-zone-redundant storage (RA-GZRS)
The correct options are Geo-zone-redundant storage (GZRS) and Read-access geo-zone-redundant storage (RA-GZRS). Both options synchronously replicate data across three availability zones in the primary region, protecting against datacenter failures, and then asynchronously replicate the data to a secondary region for disaster recovery.

Step-by-Step Solution

1
Analyze the primary region redundancy requirement.
The requirement to protect against datacenter failure by replicating across three availability zones requires zone-redundant storage (ZRS) replication in the primary region.
Locally-redundant storage (LRS) only replicates within a single datacenter, whereas ZRS replicates across three zones.
2
Analyze the secondary region disaster recovery requirement.
The requirement to replicate to a secondary region requires geo-replication.
Only GRS, RA-GRS, GZRS, and RA-GZRS replicate data to a secondary region.
3
Select the configurations that meet both requirements.
Combining primary zone-redundancy (ZRS) and secondary geo-redundancy leads to Geo-zone-redundant storage (GZRS) and Read-access geo-zone-redundant storage (RA-GZRS).
Both GZRS and RA-GZRS offer zone redundancy in the primary region and copy data to a secondary region.

Key Concept

Combining zone-redundant storage (ZRS) with geo-redundancy to achieve Geo-zone-redundancy in Azure Storage replication.
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Configure Blob Storage Lifecycle and Replication

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