How do you create those backup archives? Do you use a tool?

On Fri, 19 Mar 2021 18:38:49 -0700
Marc Shapiro via Dng <dng@???> wrote:
>
> These are backup archives.  No one is using them after they are
> created (unless I screw up and accidentally wipe out an entire
> partition, again).
>
>
> Marc