It shows the many different layers involved with a product like Azure SQL Database. What happens if there is a loss of service for a specific component? Obviously we as customers would not be able to fix the issue as this is the responsibility of Microsoft Engineers, the key for me is being kept in the loop with the issue and it is something that they do pretty well. So what happens if the load balancer has issues?
All communication is done via Service Health within the Azure portal.
Check the comments for another useful Azure status site.