Problem of dates with Robocopy

[cobra2008]

I use Robocopy to make daily backup of my documents, not being satisfied with the backup feature of Windows 7, I'd rather do it by hand with a batch file, and generally it works well!

But then, quite boring problem:

I ask Robocopy to copy/replace the newer files from source directory to the target, with the command:

robocopy /s /zb /purge /V /R:3 /W:10 /LOG:"C:\Users\Skydarking\Documents\backup_log.txt" /TEE /TIMFIX /XO "C:\Users\Skydarking\Documents\%folder%" "\\sb-backup.epfl.ch\isic\lpi\cornuz\Pavillon\man_backup\%folder%"

It works perfectly on two of my pc, except that I exclude the old files, because I do not know why it considered some of the source files as older than the target.

On my laptop, it's the opposite problem, more annoying, it believes too many source files newer than the target, then I just made the copy and modification date displayed by windows is strictly same!

This makes my 8gb around documents, I copied much every time I run the backup, then once again, I have not touched the source files or copies ..

Someone would it be able to help me?

[Macarenas]

On Robocopy I can not help you, but I use Synchron for sync and it works fairly well including the ability to make a file with ftp to the automatic regularly.

Let me try:

/XO
Exclude files older (Please note that the Robocopy GUI (3.1.1) does not use this switch correctly, meaning it still copies older files over newer ones. Version 3.1.2 correct this problem.)

[cobra2008]

It has no effect on my problem.

The problem with this Robocopy is that you never know if they speak of the source file or destination file.

So when you have the option to exclude files, old, changed, or new ... of which we speak?

I hoped to have the answer by including the timestamp in the log file, but no, once again there's only one date given, and we do not know what file it is.

[Macarenas]

This is the problem of synchronization software ... they are often far from clear (in the case of SyncBack for example). That's what I fullsync with.

For backups and/or synchronization of data, it provide a lot of options and possibilities. Perhaps you find one that suits you.