The Backblaze software is intended to prevent data loss. There wouldn't be a way to compare hashes the way you describe in this case as that mechanism is simply not implemented into the Backblaze software. > I apologize, but this would in fact be the only sure fire way if you are concerned about any deleted files. What bugs me is that the Backblaze desktop software should be able to resolve this - it should be possible to do a hash of all the files that are in the most recent backup, and cross-check it with the hashes of the files on my machine.Įdit: This is the response from the Backblaze support: But even then I won't know if/which of my data was corrupted. So my only option is to do a full hard drive restore, costing $189 + customs in Europe, so at the end probably closer to 300€. I also can't download a full backup since Backblaze only allows downloads of up to 500GB at once. The only official solution is to manually check all files (millions in my case).
It's possible that some data might be missing - Backblaze doesn't tell me though. Backblaze will not tell me the actual cause of this inconsistency. I just got a "Safety Freeze" error - essentially some inconsistency with my backup. You know how everyone keeps telling you, a backup is only a true backup once you've done at least one restore? Now I know why (silly me). I've been using Backblaze for a few years for my home computer.
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