Comment by ben509
6 years ago
That's a long article; please quote the part you're referring to so we're all looking at the same text.
> a backup, or data backup is a copy of computer data taken and stored elsewhere so that it may be used to restore the original after a data loss event
Since a "replica" is a copy, that seems technically correct.
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.