Robocopy help

liamcrane · 16 Sep 2014 at 13:45

Hi guys

Just looking for some quick advice using robocopy. Im using the following syntax to copy from server 2012 to my synology nas. All i want is updated files to be copied.

robocopy D:\media \\mynas\media /mir

This works fine but every time its run it wants to copy all the files again. I have tried the /copyall function as well but doesnt appear to work i think due to my nas not having an ntfs file system perhaps?

I decided to try xcopy using

xcopy D:\media \\mynas\media /d /e /y /s and this seems to work great and only copies updated files.

Is there any real performance difference between xcopy and robocopy?

Cheers

Amraam · 16 Sep 2014 at 14:19

Because IIRC, /MIR is the same as /Purge and /E combined. What you need to do is add extra modifiers to select onlythings from the last 24 hours for example, or not use the MIR command so that it only copies things that do not already exist in the destination folder.

bledd · 16 Sep 2014 at 14:30

Try adding /FFT

Usually fixes non NTFS time stamps

Amraam has misread what you've asked.

bledd · 16 Sep 2014 at 14:33

robocopy /FFT /MIR "C:\source\folder" "\\destination\folder"

Check your Synology is updated to the latest software too

liamcrane · 16 Sep 2014 at 15:51

Thanks Bledd will give that a go for sure

EDIT

Just tried a basic couple of files and it still seems to want to copy the whole lot again over to my nas even though they have not been modified

bledd · 16 Sep 2014 at 17:24

Do this..

Create a new shared folder media2 on nas (empty)
Create a 'media2' folder on your pc

Chuck some files in C:\media2

Run

robocopy /MIR /FFT "c:\media2" "\\nas\media2"

Now add a file to c:\media2

Run the command again.. see what copies..

Is your Synology updated?

I'll test mine tonight with robocopy, what format are your Synology drives? I believe mine are EXT4 (not even sure if you can change this, just covering all bases)