hn • r/hackernews
Comment on: Nine PBS sues Iron Mountain over blocked access to archival data
If you had zero copies, then you'd have no data.The 3-2-1 includes the production data itself.You have one copy of data (the data that needs to be backed up), and you have two additional copies of that data (the "3" in the strategy), where one of the backup copies is stored offsite (the "1" part), which naturally follows that it satisfies the middle "2" also.For over a decade we used 4-3-2 strategy, but it got expensive fast and due to ever evolving budget cuts, our (local gov) customers weren't ready to pay the extra.There's also 3-2-1-1-0, but that's just a fancy way of saying you _really_ s