You work in IT right? always backup
1 backup updated daily
every week you update the weekly backup
every month you update the monthly backup
every year you update the yearly backup
and so on or with whatever precise timings make sense for you
Keep at least the last two snapshots for each.
Also, do use error correction codes so you can recover partially damaged backups.
The /s is missing. If you were serious, please check what backup means. I would hate to see you here, in a couple of years, with "Ask HN: Apple closed account without warning. How do i recover my iCloud photos ?"