High availability refers to systems that are durable and can perform operations without any hindrance on the data that is required for the response or any request from any mobile, web portals, websites, social, e-commerce, enterprise, and cloud applications. Data availability is considered an utmost concern for any business or organization. Any issues with downtime may have an impact on the business credit, and in some cases businesses have to suffer financial loss.
For instance, if we have an e-commerce application with a single database server, if that server goes down for reasons such as hardware failure, network issue, virus, or operating system issues, it impacts the data also. An e-commerce application may have a large number of customer hits at same time, and any server failures to serve the response to user requests will impact the user; they...