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If your data live only on "the cloud" ... they aren't your data. Backup, backup, backup.
The "3-2-1" Rule:
- 3 backup copies, on
- 2 different types of media
- 1 of which is offsite
If your data is in "the cloud" a good strategy is:
- One copy in a different cloud service
- One copy at your own ground facility
- One copy at a remote ground facility
Then the only hassle is keeping them reasonably up to date. But better to have week-old data than no data at all.