Episode 37 — Redundancy and Replication Options in Storage
Redundancy ensures that data in Azure remains durable and available even when hardware or regional failures occur. This episode explains the various replication options Azure offers and when each should be used. Locally redundant storage, or LRS, keeps multiple copies of data within a single datacenter, providing protection from device failure. Zone-redundant storage, or ZRS, replicates data across availability zones in the same region, improving resilience against facility-level disruptions. For broader protection, geo-redundant storage, or GRS, and read-access geo-redundant storage, or RA-GRS, replicate data to a secondary region hundreds of miles away. Understanding these redundancy choices is a core AZ-900 skill because they link directly to Azure’s reliability principles.
The episode also explores how redundancy affects cost and recovery planning. Learners hear examples of when to use each option—for instance, LRS for low-risk test data, ZRS for regional continuity, and GRS for disaster recovery scenarios. The discussion connects these choices to compliance and service-level agreement considerations. By mastering how Azure safeguards data through replication strategies, learners gain insight into why organizations trust the platform for mission-critical workloads. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
