Forum Discussion
OneDrive Client, Files on Demand and Syncing large libraries
All the current technical documentation regarding the Sync Client and it's limits can be found here:
https://support.office.com/en-us/article/invalid-file-names-and-file-types-in-onedrive-onedrive-for-business-and-sharepoint-64883a5d-228e-48f5-b3d2-eb39e07630fa?ui=en-US&rs=en-US&ad=US#synctoomany
Interestingly, and I'm assuming this is based on feedback, the upper sync limit has been revised down from 300,000 files to 100,000.
There isn't any formal documentation regarding the behavior of Restricted View and it's impact on the sync client, but in our testing it does honor the underlying permission limits defined by the permission level:
The critical thing to understand with this is that this is a recursive permission, this permission will cascade down the rest of the directory tree underneath where this permission is defined, regardless of any other permission a user may have (Even if you have broken inheritance further down). In our use case, we applied this permission to our "Archive" folders inside our document libraries, effectively allowing our colleagues to access archived content in the browser, but restricting their ability to download it with the sync client. Not only does this help protect the archived content, it relieves stress on the client.
I would recommend that anyone currently struggling with over-loaded clients take a second look at cloud content and determine if any of the data in a Document Library really NEEDS to be synced, if not, there is probably method to help relive client stress by implementing Restricted View on parent folders that hold content that can effectively remain cloud-only and then re-assign contribute permission below that level.
