Applications need somewhere to keep data when it is no longer being processed. Azure Storage provides that persistent home, sometimes without you setting it up explicitly: virtual machines, Azure App Service websites, and Azure Functions all rely on storage for files, code, or metadata. section 5.0
The right storage choice depends on what the data must do. Administrative documents need protection from disruption; digital books need cost-efficient storage; messages can help applications remain loosely coupled; and a book list needs fast retrieval. Those are different jobs, not one giant folder. The choice affects application performance and cost. Storage accounts are pay-as-you-use, with access frequency and redundancy influencing the bill. section 5.1
A few practical decisions follow from those jobs:
- Plan for resilience. Azure Storage keeps at least three replicas within a region, even when you have just one storage account. section 1.3.2
- Choose the storage service and configure the account, access tier, and security for the intended use rather than treating every data item alike. section 5.0
Host a simple website
A site made of HTML, CSS, and JavaScript files, with no dynamic content, can be hosted directly in Azure Storage instead of on a web server. Prepare the files, create a blob container in the storage account, and use AzCopy to move the files from your computer. Authenticate the operation with Entra ID or a Shared Access Signature (SAS) token; a container-creation command without authentication is not enough. section 9.2 section 9.2.1

