Hi i am new to unraid and require support with solving following error when i am copying my music from my synology to unraid server over smb:

There is sufficient free space on the pool and array devices:

The share is using the cache (a 1TB NVME drive) as primary storage and the 4TB HDD disk in the array as secondary storage:

anyone knows what the problem might be?

I was able to copy all my photos without any issues (though it was very slow with an average transfer speed of about 5MB/s).

Can you create a new file on that share from Windows? Also, please post the diagnostics.

Also make sure that you have set up the Minimum Free Space setting on the Cache Drive itself. See Below:

EDIT: IF the free space setting is correct for the Share, then your setting should be 100GB for the Cache drive....

Edited December 8, 2025Dec 8 by Frank1940

8 hours ago, JorgeB said:

Can you create a new file on that share from Windows? Also, please post the diagnostics.

Yes i can create new files. Please find the diagnostics attached.

ey-nas-server-diagnostics-20251208-2016.zip

i also just noticed that it has also issues with certain other files that i try to copy.

If i select skip, the copying continues but then now and then runs into a file throwing following error:

6 hours ago, Frank1940 said:

Also make sure that you have set up the Minimum Free Space setting on the Cache Drive itself. See Below:

EDIT: IF the free space setting is correct for the Share, then your setting should be 100GB for the Cache drive....

Thanks for pointing this out, i indeed had not set a minimum space for the cache, i did now but unfortunately it makes no difference w.r.t. the error i get.

Edited December 8, 2025Dec 8 by rernst

I don't see anything logged on the Unraid side, suggesting it's an external issue. Can you copy files from the Windows PC?

Try Googling Error 0x80070299 and trying those solutions. Do do some research as it appears that this is one of Windows errors codes that are a catch-all for a number of issues. These are not files with DRM (digital rights management) permissions on them?????

In that google result was this one:

https://forums.unraid.net/topic/125003-cause-of-file-transfer-failures-due-to-file-system-limitation/

You might want to try to copy the troublesome files to a flash drive formatted with exFAT. IF that works then copy the files from the flash drive to Unraid...

Let me also say that you may have to dive down in the 'Properties' on these files on your Windows computer. You would be working under the 'Security' tab and looking at the 'Advance' permissions and see if there is something unusual about those files. (If I remember correctly, I seem to remember that I once saw a file where I could write to that file but could not delete it. In other words, I could delete the entire contents but not remove it from the file system!!!)

Let me say, I am not a Windows permission Guru. I know just enough to make me really, really dangerous!

Hi all,

i tried your suggestions today, and found that first copying my files to an exFAT formatted drive and then from this drive to Unraid solved indeed my problem.

I double checked if any of the fiels had a certain protection, but i couldn't find anything out of the ordinary under properties > security.

My problem is exactly as described in the topic Frank1940 linked to; i still not understand the cause of the problem, but I'm glad that the suggested workaround worked!

Thanks all for your time and support!

Edited December 12, 2025Dec 12 by rernst

To add to this - @Frank1940 was also correct. When I encountered this. Some files would be OK, the ones that failed has Microsoft Rights Management added via AIP at source without me knowing.

Once removed the issue was solved