If I have a home server connected to Proton Drive for example, would that be sufficient to back up my data?

The common wisdom about backups is the 3-2-1 backup strategy, which recommends:

  • 3 total copies of your data, including your original or “production” data
  • 2 different forms of media
  • 1 off-site copy

Proton Drive can be a decent off-site backup, but it would be a good idea to make a separate backup of your data on a different form of media like an external hard drive, just in case Proton Drive goes down, or the data there gets corrupted and you need to restore a known good version.

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