Some of the important data-related best practices for high availability include the following:
- If possible, store data on Azure-provided services, such as Azure SQL, Cosmos DB, and table storage
- Use storage accounts that are based on the geo-redundant type
- Ensure that data is replicated to multiple regions and not only within a zone or data center
- Take periodic backups and conduct restore tests frequently
- If storing data in VMs, ensure that there are multiple VMs and that they are either on availability sets or availability zones
- Use keys and secrets to data stored in the Azure key vault