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Comment by y4mi

6 years ago

all fruits are apples because apples are fruit, right?

Your definition claims "a backup is a copy."

The original claim was "a backup is a replication of the live dataset, although, usually out of sync to be useful when the main dataset goes bad."

The only thing that makes a replica special is that it's in sync. Once you add the caveat that it's out of sync, it's just a copy.