Is there a max number of file copy or moves allowed? (Copy over 1 million files stopped after 256 GB)

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ericw
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Is there a max number of file copy or moves allowed? (Copy over 1 million files stopped after 256 GB)

Post by *ericw »

Hi, new user here, so maybe I have missed something:

I am trying to copy years of photos (over 1 million files) from thousands of folders onto another drive in order to remove duplicates, etc.

I set up the copy function that seemed to work, but then it stopped after 256 GB. I did this twice, same result each time.

Any advice?

Thanks in advance.

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petermad
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Re: max number of file copy or moves allowed?

Post by *petermad »

Maybe your computer went into sleep or hibernation mode - Change your power settings to avoid that.
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ericw
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Re: max number of file copy or moves allowed?

Post by *ericw »

Good suggestion, but I had already turned off both while plugged in.

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ghisler(Author)
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Re: Is there a max number of file copy or moves allowed? (Copy over 1 million files stopped after 256 GB)

Post by *ghisler(Author) »

Did you get any kind of error? For example, the number of files in the root of a drive is limited. You can run into this problem when trying to backup many files to a USB stick. Solution: Create a subfolder and put them in there. Subfolders are in principle just files, so they can grow to accept more files if necessary.
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polle452
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Re: Is there a max number of file copy or moves allowed? (Copy over 1 million files stopped after 256 GB)

Post by *polle452 »

You could have an issue with version of Operating System and/or of the File structure on your drive.

See this Microsoft table:
https://support.microsoft.com/en-us/help/140365/default-cluster-size-for-ntfs-fat-and-exfat

Also look for file size vs block size.
'Bad' USB stick with capacity less than advertised?

Here is an example:
https://www.dropbox.com/pri/get/Shared%20DBGPN/File%20sizes-Window.png?_subject_uid=271463792&w=AAAxb2YLuzHStu00A_F51bF6wns5AiQozmlVMyNjqRzrLg

This is Win10, TC9.51 and a 64GB SD card.

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