Backup Solution - Need Help

When any EA is installed on a MT4 platform (portable mode preferred, if that matters) and working on a VPS -
it may happen that the platform or the VPS itself will shut down accidentally for more than few seconds.

In this case I want to have an extension/tool that will:
1. Alert me in case of such occurrence
2. Be able to open a backup platform in a secondary PC/VPS, which was in standby for this case,
that will also be able to follow the Global Variables from the original platform
and actually will be a backup that runs smoothly from the moment the original platform
with its open trades and pending orders are down and will keep working smoothly in the backup machine.
Also, once the original platform/VPS is back to work - the tool will make the same step to revert back to the original mode
and will be again on standby until the next time this happens.
Do you know of such a tool, or can anyone build this or suggest someone who can?

You can code it yourself. It is very simple
First, a web service to communicate between all VPS and store all global variables in a database. In order to know if the original expert is out of reach, you must change a database field for a specific time of the original version expert. Then create an expert backup that constantly checks a specific field, and if that field does not have the right value, it means that the original expert version is out of reach and sends an instruction to the backup expert to start working and Send an email as an alert or notification to the mobile version MT4 and also use the variables stored on the database to continue working. After the main version returns to normal, an instruction can be used to stop the backup version.
What is your idea?
Is there really a lot of this problem?

As Ahrt suggested, this is possible using a sql database.

I would suggest, though, that the hassle factor far outweighs the benefit. How often does your VPS go down that this is an issue for you. My VPS hardly ever goes down and when it does, it is up and running again within a minute, including MT4......

I have VPS for years and it was never a situation when it stuck. But in your case I'll make it this way:

1. Use dropbox/rsync or other software to sync the EA/indicators/libraries etc. This can be done every minute/second/hour or manually.
2. Run 2 EAs at the same time on 2 VPS. Add the ability to ping first EA to the second EA. If there is no reply then second EA will rule the positions, if there is answer and first VPS is ok, it will wait.

This is not an advertisement, but I'm using Digital Ocean for years and it provides a 100% network up-time. Sometimes they have scheduled network maintenance, but they always send email about that.