1. Not related with you issue: Do not relay only on jetbackup... when I was junior old sys guys always told me 2 is one and 1 is none now days years later I can only say they was right ... ( DrireactAdmin + BorgBackup strategy from the docs is very cost effective way to have second set of backups) not relaying solely on JB which is one jetmongo hangup away of not having recent backups ..
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I agree, I continue.
But... I have my own backup strategy based on my own script, which I use both in the hated chapters, as well as in Plesk and now I will use in DirectAdmin, which does not use mondgoDb, nor Mysql.
And yes, after 38 years in the sector, 2 are 1, in terms of efficiency. In fact, one backup is in one country, and another in my office.
My copies are on rented servers with 80TB capacity, and I do not rent them to third parties. The "in home" ones are on a raspberry pi with nas raid.
So I think I am covered on what is and is not a backup system.
But I have also learned one thing. If you leave the user the ability to decide, it makes a mess, and on top of that, they use both.
And both are not a good strategy, because I do not like it.
As for the resellers, they are managed, so with what I charge them, they have covered the migrations between machines when it comes to it. The rest, well, almost all of them have been with me for more than 10 years, so they are not going to migrate much.
Anyway, each business has a scope, a vision.
My happiness is in not having more than 1 ticket a day, and it is usually from new users. So I thank you for the advice, but there are many opinions.
PS: The truth is that more than a response, we have turned this into a thread that got out of hand, and got us talking about more.
PSS: In the end the question was left unanswered.