Network share as local, showing 4TB free, 0B used

[minikold]

I have a few different network shares from an Unraid server that I mirror periodically for file transfer using Dokan. I use a simple command of:

cd "C:\Program Files\Dokan\DokanLibrary-1.4.1\sample\mirror" .\mirror.exe /r "\\servername\sharename" /l T

I recently upgraded to 1.4.1 to try to resolve the issue, but the issue persists. 1.4.0 was functioning fine. The only change that transpired was that two of the shares that I map recently got upgraded storage to a 10TB drive from a 500GB drive. The 10TB shares are reporting as 3.99TB free, 0B used, but in actual are 4.33TB used, 5.67TB free. Whereas the other share that was on a 4TB drive directly (3.63TB actual), reports properly into Windows.

The drives from Unraid:

Windows File Explorer after Dokan mapping:

I'm curious if there is a 4TB limit by chance with this? The files are still accessible and writeable, so that's not an issue, but I would like them to report properly as that may affect another purpose that I utilize Dokan for.

I know the "xfs" filesystem is not an issue, as the drive that this 10TB replaced was the 500GB above it in the list, and that reports fine, as the "O:" drive in the screenshot.

[minikold]

I spoke too soon. Turns out it doesn't cause a problem with my other purpose for using Dokan. However, I would still like, if possible, for it to show the correct sizing. Not sure if that's a Dokan issue, or a Windows issue.

[Liryna]

I believe you are hitting the limit of GetDiskFreeSpace params (Congrats 😄 ).
https://github.com/dokan-dev/dokany/blob/master/samples/dokan_mirror/mirror.c#L1420-L1421
It should be changed for GetDiskFreeSpaceEx
https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getdiskfreespaceexa

[Liryna]

After editing the file, have you rebuilt the binary ? You need visual studio to do that.

[minikold]

Sorry for a late reply, been a busy as heck week. I did not rebuild the binary. I do not know how to do that, I apologize.

[Liryna]

No problem, I will try to make a release with this patch in the coming days.

[lvincent81]

Any chance on getting that build this week Liryna? No problem otherwise, but will save me try to figure out how to build this.

Thanks!

[Liryna]

No unfortunately, I am waiting to finish a patch before doing the release.
The process is long so I cannot do them that often.
That said, I should have the patch finished next week.