How to monitor file creation on Unity-680 UFS64 filesystem?

I have several UFS64 filesystems on my Unity-680, all presented to the clients as SMB shares.

On another server I have a script that I need to run each time a new file is created on the filesystems.

On a "normal" linux server I could have used inotify to monitor the creation of new inodes.

What are my options for having similar monitoring in Unity? I want to avoid having to traverse the filesystems looking for new files, I would prefer a more "passive" way of just waiting for a message of some sort?