Manual backup works but is crude and can miss files.does everyone back their drives/folders up simply by ctrl + c/p?
or use an app (other than system backup) which does it automatically?
do ppl use clouds? (hopefully not)....or always copy to portable disk?
Cloud, no, firm goes bust, data kaput.
RAID 1 drive rotation increases chance of drive (rebuild array) and connector failure
(RAID is not for backup, just hardware redundancy).
Also all the data is open to infection, accidental delete etc.
Best way is to use one of these:
Schedule backup every couple of hours for instance to HDD caddy.
Has to be said even the backup caddy is still open to infection.
Then again, you don't have to lock the caddy drive - so its not powered up all the time.
Another way would be SSD - dump an image clone periodically (say 3 image rotation - replace oldest).
No harm in using both to be sure.
That covers data.
I use separate image clones for OS partition.
The image is clean and not very old, whereas if you clone OS and data
together you are cloning any OS faults.
No historical image clone library can then make it harder to sort OS faults,
in my experience, the vast majority of problems can be sorted by just wiping the OS.