Re: standby questions

>         2) if archive_command is activated and working, the primary
> server sends (preferably with rsync or some other "atomic tool") the
> NEW WAL files to the standby server. Later, at some point, the primary
> server will delete this files when considers that are not necessary
> anymore.
>
Is 'scp' by itself considered an "atomic tool" for copying files to the
standby server?  Does "atomic" mean that the program should copy a file
over using a temp file name and then renames at the end or does it mean
something else?

David