Full backup process

Hi I'm new with the comunity but I really love OMV, It allow me to do lots of things in a easy way. So now I'm trying to put a system into operation that allow me to backup as much as i can a restore the fastest way.

First I have OMV running in a 128 ssd in a server that I assamble with core i3 8gb of ram and several disk besides the omv one. Also i have a second 128 ssd connect through usb for cloning OMV main disk.

Now what I'm trying to do is to make a backprocess that run alone, first a complete clone of the OMV disk, for fast restore. Secundo I need to backup to a certainr disk several folder (mainly docker config files) to one particular disk.

So what do you recomend for this task? is there a uniq way for everything?

Just one thing I would prefere that all backuyp is made online.

Thanks i found rsync in the services section, but i cant finde the backup opcion, do i need to install anything?

ok, it's the backup 5.2.3 or the borgbackup 5.1.7?

thanks, one more question, can i clone the disk while it's in use?

Another question about the pluginn. The share folder option is where the backup file will be save?

Should i set the root device o extra options?

finally is the any help document about this pluginn?

I just fish my first backup, but I have no idea if its correct or if the correct disk was save. Is the a way to check this? can i open the files and se the content?

as you recommend I use fsarchiver. I didn't get any output