Windows 10: Backup with robocopy file count and size are different

I always try to keep up 3 copies and found the tool robocopy /mir as very useful.

After some years I run into a big issue. Why there is such a big discrepancy in file size and count eating up the space on my external drive?
See attached screenshot:





If I compare file by file, the count discrepancy gets lower and to 0 if I move down the folders tree to the last subfolder.

What do I have to change to match this numbers and get rid of this effect and how can I clean up such a folder? I only want to mirror a folder tree can't be that hard?
Hoping for constructive feedback.



Tobias

:)

 

Repeat RoboCopy batch file in Windows 10 gives different results.

Running Windows 10 Pro 64 bit with standard supplied RoboCopy.

Having said that, I believe the same symptoms were exhibited on Windows 7 Ultimate 64bit (which was updated).

Basically I have a batch file which copies data from a 'non changing (by the OS)' drive to a backup drive.

If it has been run and completed so both drives are in sync, I can run the batch file again and it runs very quickly, BUT can sometimes give a different number of files in the drive. i.e. running it back to back gives different file count, even when the
2 drives are in sync.

Either this is related to caching of the drives, or RoboCopy not counting correctly when using multiple threads.

I would appreciate a definitive answer so that I can automatically test for files that are synced and provide a YES/NO to it having worked okay.

Regards Binky

 

Robocopy backup won't work

I tried to use the built-in Windows program called Robocopy to back up my files using the following command on the command line:

robocopy Documents J:\robocopy /e

This command works fine on my laptop

But it would not work on my desktop computer for some reason

It just shows the very command that I typed over and over again repeating the command over and over on a new line each time, and it doesn't copy the files. There is no explanation for why.

On the other hand, using Windows Backup / File History works just fine, but I don't want to use Windows Backup because I don't like the format that the files are saved in.

Why isn't Robocopy working? How do I solve this?

 

I have added the file count column to my folder in File Explorer. However, the actual file count is not displaying.

Hi Loren,

I appreciate if you could answer a
few questions to narrow down the issue and to provide you better assistance.

• How did you added file count column for folders in File Explorer? What are the steps did you followed?
• When you say, "actual file count is not displaying" is this issue specific to any folder or happening with all folders?
• Have you installed any third party anti-virus on your system?

Meanwhile, I suggest you to follow the steps below and check if this helps.

• Open File Explorer.
• Click on View from navigation pane and choose Detail pane.

Write to us with the above information and status of the issue to assist you further.

Thank You.