Azure-storage-azcopy: Issue when copying from a file share locally onto another file share

[wilsonge]

Which version of the AzCopy was used?

Note: The version is visible when running AzCopy without any argument

10.0.1

Which platform are you using? (ex: Windows, Mac, Linux)

Linux

What command did you run?

Note: Please remove the SAS to avoid exposing your credentials. If you cannot remember the exact command, please retrieve it from the beginning of the log file.

./azcopy_linux_amd64 cp 'https://<fileshare:.file.core.windows.net//?&sharesnapshot=' '' --recursive=true

What problem was encountered?

000 : File Creation Error operation not supported

How can we reproduce the problem in the simplest way?

If I change the path from the CIFS share to the local directory the command works (i.e. saving onto the VM itself). But if I make the path something on a new empty windows cifs fileshare (i.e. restoring my snapshot onto a fresh share) I get errors

Have you found a mitigation/solution?

No. But I believe it to be related to allocating memory for the file here https://github.com/Azure/azure-storage-azcopy/blob/500f2eec4b658a5294eef523b5802b19ba80f5b7/common/mmf_linux.go#L99

[jiacfan]

Hi, @wilsonge

Thanks for reaching us and report the issue.
This issue specifically happens in linux systems, where fallocate is not supported by cifs/smb3. We'll provide a fix to this issue, and will update this issue when related fix is released.

Thanks,
Jiachen

[wilsonge]

Awesome. Thanks!

[jiacfan]

@wilsonge

FYI, release 10.0.2 invovles the fix. Welcome try.

Best Regards,
Jiachen

[wilsonge]

Thanks! Sorry I've been taken off the part that involves this right now. But will try when I'm next able to and let you know!