Failover: Reset Without the Reset

Ever wonder what happens when one of your computer applications crashes? Well, to keep it short, a failover is performed. Designers assured that there is a process that can handle the system if there is a crash. VMware, a Dell Technologies subsidiary, is one of the tech companies that has developed a managing software in the event of a crash. They have dubbed it the VMware Site Recovery Manager (SRM). This recovery tool automatically activates the failover and failback.

A lot of you may be wondering how exactly does a failover work. Well, it is a process that relies on a connection between a backup, some might say redundant, server (or system, or hardware component, or network. It depends on what you have and the nature of the crash). The backup operates in a way that the original system would, and it is created through seamlessly receiving data from the original operational system. This copy allows the computer to function despite a crash continuously.

The failover’s main goal is to lessen the crash’s impact on the user experience. It achieves this purpose by making sure that one software failure would not cause the whole system to go down with it.  Moreover, failovers are also used for websites. Multiple network systems are set up so that they can replicate and bounce off data from the main server to the backup server. Since the internet is unstable due to the continuous flow of data that would ultimately affect the system as a whole,failovers are necessary so that the websites on the end user’s side do not crash for every little change.

The capacity for failovers tends to be smaller than the main operational system. Running copious amounts of software would justify why the latter packs a bigger capacity than the former which only functions in the event of a crash.  You might also be encountering the term failback, but that’s a different story that’s not too far from this one. The failback is the system’s way of shifting back from the failover into the main operating system. Much like the failover, this process attempts to make the transition as seamless as possible.

Man frustrated over computer error

The failback is also responsible for copying the data that was processed during the period that the computer was in the backup mode. This means that it will seem like nothing ever happened. Now that you’re all set, you might be a little confident. However, disaster plans are just plans unless you know how to execute them. This only means that to find out if your plan is foolproof, you have to test it. Simulating a test failure will allow you to configure the plan, adjust it to the needs of the failure.

Often, your current configurations might not match what a live failure needs to be solved. Regularly running test fails will allow the plan to cover all possible holes. Think for example how theories are taught in school but are not the only thing needed when you’ve started working in the real world. Thanks to man’s continuous pursuit of innovation, we are now prepared with failsafe measures that can help make everyday life better.