New to Unraid coming from Synology. Successfully copied all of my movies and TV. Currently 61.5 TB used of 72 TB (85.5 %).

Now attempting to copy my 140GB music library from my Synology NAS (same source as movies & tv). Getting one of two errors on some, not all files:

"There is not enough space on "Highway to Hell" (whatever the folder is currently trying to copy)

Or

"Error 0x80070299: The requested operation could not be completed due to a file system limitation"

Clicking Skip continues copying many other files, until it triggers another one of those errors, which happens a lot.

I tried renaming the files, but that has not affect.

Edited February 28Feb 28 by CaptainKen
grammar

You are likely to get better informed feedback if you attach your system’s diagnostics (with everything in the one zip file) to your next post in this thread. It is always a good idea when asking questions to supply your diagnostics so we can see details of your system, how you have things configured, and the current syslog.

Here are my diagnostic logs as requested.kennas1-diagnostics-20260228-1458.zip

You say you have copied a lot already to the Unraid system, but as far as I can see the diagnostics show all drives are practically empty!

Regarding the logs showing the drives being almost empty. A friend of mine has also built an identical system as mine, which is the one with all the data. The logs are from mine, which I used to see if I could duplicate the issue which I was able to. So two identical systems triggering the same errors when copying. My mistake was thinking it didn't matter which system I sent the logs from. Sorry for the confusion and if it caused you to waste your time. Perhaps it's an added benefit to compare two systems.

Here are the logs from the system with all the movies and tv shows copied to it.kennas1-diagnostics-20260228-1603.zip

Feb 28 12:08:00 KenNAS1 smbd[33530]: streams_xattr_pwrite: Write to xattr [user.DosStream.01APIC_03.jpg:$DATA] on file [music/3 Doors Down/Time Of My Life/3 Doors Down - 13 - When You're Young (Acoustic).mp3] exceeds maximum supported extended attribute size. Depending on filesystem type and operating system (OS) specifics, this value may be increased using the value of the parameter: smbd max xattr size = <bytes>. Consult OS and filesystem manpages prior to increasing this limit.

How are the files being copied?

@Kilrah, I'm copying using drag and drop between two Windows file explorer windows. The Unraid window points to a standard SMB Unraid /media share.

Thank you @JorgeB for finding the issue and a recommended solution, although I don't know where to enter the command or the value to use. I'm speechless regarding the default unraid file system having a metadata limit that's less than what Windows supports. I'm using MP3Tag, which I figured was the safest compatible program to use. Hard to believe that MP3tag doesn't issue a warning when metadata is exceeded.

I'm inclined to believe a standard common xattr size has already been figured out by numerous others. Would you or someone please recommend the size to use for mp3 and flacs?

Try turning off "Enhanced macOS interoperability" in SMB settings

Try setting Enhanced macOS interoperability to No, if it isn't already (Settings > SMB Settings)

I turned off "enhanced macos interoperability". Now I get a different error warning that some properties won't be copied.

These are the properties of that particular file:

That should not be about the ID3 tags, try this on one of the files and then see if it copies without the warning

In PowerShell type

Unblock-File "C:\Path\To\File.mp3"

I applied the code to the source file. Same problem.

This could be Windows acting as the middleman and trying to preserve Windows-style metadata between two Linux-backed filesystems.

Try mounting the Synology share directly in Unraid using the UD plugin, then copy directly from Synology to Unraid using File Manager, Midnight Commander, or rsync, for example.

Do I use "Add Remote SMB/NFS Share" button? Anything else I need to be aware of to get it working? I see that synology supports and prefers SMB3.

EDIT: If I choose "Add Remote SMB/NFS Share", then the Next button doesn't work.

Edited March 3Mar 3 by CaptainKen

9 minutes ago, CaptainKen said:

If I choose "Add Remote SMB/NFS Share", then the Next button doesn't work.

You need to click the Windows icon first to choose SMB

Yes, that did it!! Thank you!!!!!

I created a guide on the process in case it helps someone else.

Uploading Attachment...

No idea why the Word doc won't upload, so here's a PDF of the guide.

0-Mount Synology with SMB inside Unraid to copy Music folder.pdf

Edited March 3Mar 3 by CaptainKen