--- title: Day 20/30: Multi-AZ and Multi-Region are not the same thing description: Multi-AZ spreads workloads across Availability Zones within a single AWS Region, while Multi-Region deploys infrastructure across multiple Regions entirely.... canonical: https://daily.dev/posts/day-20-30-multi-az-and-multi-region-are-not-the-same-thing-nfszaunyx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Day 20/30: Multi-AZ and Multi-Region are not the same thing | daily.dev og:description: Multi-AZ spreads workloads across Availability Zones within a single AWS Region, while Multi-Region deploys infrastructure across multiple Regions entirely.... og:url: https://daily.dev/posts/day-20-30-multi-az-and-multi-region-are-not-the-same-thing-nfszaunyx og:image: https://api.daily.dev/og/posts/NFsZAuNYx.png og:image:alt: Day 20/30: Multi-AZ and Multi-Region are not the same thing og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Day 20/30: Multi-AZ and Multi-Region are not the same thing **[Ezile Mdodana](https://daily.dev/sources/7vb9selrkhohgnzepmfvq)** · [@ezilemdodana](https://daily.dev/ezilemdodana) · 1 min read · 6 upvotes · 2 comments ## Summary Multi-AZ spreads workloads across Availability Zones within a single AWS Region, while Multi-Region deploys infrastructure across multiple Regions entirely. Multi-Region offers stronger resilience but brings added cost, data consistency challenges, and operational complexity. The recommendation is to size the architecture to the actual business risk rather than defaulting to the most resilient (and expensive) option. ## Content Multi-AZ distributes a workload across Availability Zones within one AWS Region. Multi-Region uses infrastructure in more than one Region. Multi-Region can provide stronger resilience, but it also adds cost, data considerations and operational complexity. Not every application needs it. Do not build a second airport when your business currently needs a backup generator. Start with the actual business risk, then choose the architecture that matches it. #AWSWithoutTheFluff #HighAvailability #AWSArchitecture ## Community discussion Top comments from developers on daily.dev. **@irshadjan** · 1 upvotes > Short and to the point. Bravo! ## Similar posts on daily.dev - [A Year of AWS Outages: Why Multi-Region Is Still Hard, Even With AI](https://daily.dev/posts/a-year-of-aws-outages-why-multi-region-is-still-hard-even-with-ai-kloljrg7i) · AWS Fundamentals · 1 upvotes · 0 comments - [War in Iran Damages Multiple AWS Data Centers, Challenging Multi-AZ Assumptions](https://daily.dev/posts/war-in-iran-damages-multiple-aws-data-centers-challenging-multi-az-assumptions-wx7xfchku) · InfoQ · 0 upvotes · 0 comments - [Multi-region Expansion for Azure Deployments](https://daily.dev/posts/multi-region-expansion-for-azure-deployments-c7pf47von) · DevBlogs · 0 upvotes · 0 comments --- Tags: [#cloud](https://daily.dev/tags/cloud), [#aws](https://daily.dev/tags/aws) [View this post on daily.dev](https://daily.dev/posts/day-20-30-multi-az-and-multi-region-are-not-the-same-thing-nfszaunyx) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/day-20-30-multi-az-and-multi-region-are-not-the-same-thing-nfszaunyx","headline":"Day 20/30: Multi-AZ and Multi-Region are not the same thing","text":"Multi-AZ spreads workloads across Availability Zones within a single AWS Region, while Multi-Region deploys infrastructure across multiple Regions entirely. 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