Hello,
my total dataset is now 2TB and it grows about 1TB/year.
Is this a sound backup strategy:
- buy 3 hdds today, rotate backups between them, so I have at least 2 previous versions of a file
- replace them every X years, say every 3 years, so the chances of catastrophically losing all data are very very low
I have been looking at tapes also but the drives are quite expensive, and my dataset size probably does not justify them - or does it?
Hard drives are fine. But replacing them every few years for fear of failure is a waste of money. Drives can last over 10 years, or 1 day. Just have more than one copy and you’ll be fine when one does fail.