@a3976b27 I've been lucky with what I could recover. I once fired up a dying desktop computer to rescue a ground zero draft of my first ever 'book' (entirely for sentimental reasons 😉 ), by floppy disk 😆 . 

Your system sounds well organised. My back up system is more chaotic, and every now and then I think I should fix it, but my ADHD disagrees 😆 .