Our server has a single hard drive. This hard drive is partitioned into two volumes, C: and D:. A directory on the root of D: is a provisioned share. This is the share where I need to add security group permissions.
When the share was created, Everyone was given full control in the share permissions. After the share was created, Techs, Supervisor, and Administrators group were all given full control in NTFS permissions. Security groups are created to control all other users' permissions.
Any attempt to write the ACL back to the share (even an unmodified ACL) causes all inheritance to stop on that share. Now I can manually add a security group to that share and set its permissions, but there's something about set-acl that won't let me do that. Also, I can run set-acl on another folder on that share and it works correctly. It's just the top-level share where I'm having problems.
I'm struggling with giving a clear description of the problem, so feel free to ask more questions if I haven't been clear.