Understanding Azure Zone Mappings with azqr
·631 words·3 mins
Azure availability zones are critical for high availability and disaster recovery. However, zone numbers (1, 2, 3) are logical abstractions—their physical datacenter mappings vary across every subscription. Your zone-redundant deployment might actually share infrastructure with your DR environment because different subscriptions map zones differently.
This post explores the Azure Quick Review zone-mapping plugin and why zone mappings matter for high availability, disaster recovery, and cross-subscription architectures.