Azure HA and DR Solutions

[RJNIMP]

Please help me to understand/tech details(some articles) to know how to design a HA solution using Azure Zones and a DR using Secondary(Passive) Region. Also in this solution how SQL Server HA/DR solution can be architected. 

[#2]

Give a try - https://docs.microsoft.com/en-us/azure/cloud-adoption-framework/ready/landing-zone/design-areas

[#3]

And this as well -
https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/sap/sap-s4hana

[#4]

@RJNIMP 

Hi i would suggest to definitely check the  Azure Well architected framework which  is a set of guiding tenets that can be used to improve the quality of a workload. The framework consists of five pillars of architecture excellence: Cost Optimization, Operational Excellence, Performance Efficiency, Reliability, and Security.

https://docs.microsoft.com/en-us/azure/architecture/framework/

If you like reading  there is a free ebook : Azure for Architects, Third Edition

Create secure, scalable, high-availability cloud applications

https://azure.microsoft.com/en-us/resources/azure-for-architects/

If you have a specific need i would suggest to draw a diagram and post it as png and everyone can give you an opinion on possible HA and BCDR scenarios

[#5]

Thanks for the input.