AZCopy Sync with Exclude-path does not work with DFS as source

[Rangeshmsft]

Which version of the AzCopy was used?

Note: version 10

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

windows

What command did you run?

azcopy.exe sync "\contoso.com\data\private" "https://storagename.file.core.windows.net/usfscontoso/Unstructured/private?sv=[token-redacted]" --exclude-path "hr/" --exclude-pattern thumbs.db --recursive=true --from-to=LocalFile --delete-destination=prompt --put-md5 --preserve-smb-info=true --log-level=INFO --trailing-dot=Enable --dry-run;

What problem was encountered?

Background:

We are trying to sync his on prem folder through AZcopy sync and wants to exclude a folder

using the below command
azcopy.exe sync "\contoso.com\data\private" "https://storagename.file.core.windows.net/usfscontoso/Unstructured/private?sv=[token-redacted]" --exclude-path "hr/" --exclude-pattern thumbs.db --recursive=true --from-to=LocalFile --delete-destination=prompt --put-md5 --preserve-smb-info=true --log-level=INFO --trailing-dot=Enable --dry-run;

Here the source \contoso.com\data\private is a DFS and /hr folder is a subfolder (\contoso.com\data\private\hr)
\contoso.com\data\private\hr is a folder with target to say \contoso.com\something\hr

When he tried to exclude this folder in the azcopy, the exclusion does not happen

This is only happening when the source is a DFS.

We tested the following

1. Exclude path with source as Local drive works fine (eg source - c:/Private Exclude path "hr/" c:/Private/hr gets excluded)- working
2. Exclude path works fine with any source as UNC path (eg source - //contoso.com/share/Private Exclude path "hr/" //contoso.com/share/Private/hr gets excluded)- working
3. But when the source is a DFS and customer tried to exclude a path that is a reference path in DFS, It does not exclude it. (eg source - //contoso.com/share/Private Exclude path "hr/" and "hr" is a DFS path to //contoso.com//something //contoso.com/share/Private/hr does not gets excluded) - not working

How can we reproduce the problem in the simplest way?

Create a DFS having folder with targets. Run AZcopy with Exclude path on the folder

Have you found a mitigation/solution?

No