Someone asked this questions on a forum
difference between High Availability and Work Load management ?
I tried to make it simple and easily understandable. So don’t take this as definition 🙂
Work Load management – How you distribute the load and manage it.
High Availability – How much time your solution/application is available.
Say you have an application. You define that this application must be available 364 days in a year. That is application’s availability. How do you achieve this? Create a failover system, backup plan, monitoring etc ..
Now you need the response time to be 1-2 seconds. This is not covered in above statement of availability. How do you achieve this then? you take multiple servers and distribute the incoming load among them to maintain the response time you need.