High availability (HA) means creating a system design for your Microsoft Dynamics AX components in a way that ensures that the system is up and running as close to 100 percent of the time as possible at an acceptable level of performance.
For anyone working with Microsoft Dynamics AX, it is obvious that this is no easy feat. Installing fixes in a best practice way requires restarting the AOS, which means that many components are unavailable. Rolling out one fix per month with a downtime of 5 minutes, for example, would mean a system that is running only 99.99 percent of the time. This, however, can be planned and should have little impact on the business.
However, there are many occasions when the system is unavailable that can't be foreseen, such as the following:
Power outage
Server crashes
Hardware failure
Network outage
Security breaches
Fortunately, there are ways to deal with these problems, most of which might already be known to you, such as using Redundant...