I have a small server that boots from a usb drive and i would like to protect myself from the drive dying. I can't add another hard drive.
My question is: can i add one or two usb sticks of the same size and mirror the first one, so i can just unplug the first one when it dies and just reboot? I'd like to avoid reinstalling everything.
I am ok with a hourly or daily "backup" as long as i don't have to shutdown access to the server.
Thank you very much for your time and advice