best way to backup a large emc sourceone email archive

Actually

If you don't entirely know how to use robocopy, have a look at Rich copy, it's a GUI for robocopy and you can then set your mirror

otherwise

Robocopy source destination /R:5 /w:10 /mir

I'd leave the retry as is but yeah, the wait time is a bit high I guess.

You can always run the robocopy again.  The retry will delay all the other files from copying, if a file is locked in use.  It's better to skip the retries and just rerun the robocopy, especially on the very first pass on 10 TB of data.

hi

i dont want to move it i just want to back it up

Robocopy doesn't "move" the files unless you add the option to delete files at the source after you copy.

the /MOV switch would do that

sorry the move was in reply to andyalder

why do you want to use robocopy?  it's not faster than a normal copy

Not for the initial copy, but if you get interrupted, it's a simple thing to run it again and not have to copy previously copied files in large data sets.