The 3-2-1 backup rule is a data backup strategy that calls for three copies of data to be made, with two of those copies being stored on different media, with one of those copies off-site.
The 3-2-1 backup rule is a data backup strategy that calls for three copies of data to be made, with two of those copies being stored on different media, with one of those copies off-site.
The rationale behind the 3-2-1 backup rule is that it …
