Using quota on Synology NAS is a very effective way to control who can store how much data on a specific volume or in a shared folder. Depending on the file systems of your volume, a Synology NAS offers different ways to set quota.
You know that some tasks are not that simple. There are too many variables in the equation. A broad overview with in-depth information, a detailed configuration, and possible sidesteps would help. Each Tutorial post is your source to get the job done. Tutorials often link with the brief Datasheet posts and How-to posts.