Explanation:
File1: Server1 and the Azure file share
File3: The Azure file share only
Azure File Sync cloud tiering manages local storage by balancing two specific policies: the Volume Free Space Policy and the Date Policy. According to the official documentation for Administering Windows Server Hybrid Core Infrastructure, the Volume Free Space policy is the primary governing factor for tiering decisions.
* Storage Calculations: Volume E is 500 GB. With a 30 percent free space requirement, the server must maintain 150 GB of free space ($500 \times 0.30 = 150$). This means only 350 GB ($500 - 150$) of file content can be cached locally on Server1.
* Date Policy Application: The date policy is set to 70 days. Any file not accessed within this window is automatically tiered regardless of free space.
* File4 (Last accessed 100 days ago) is older than 70 days, so it is tiered to The Azure file share only.
* Volume Free Space Application: The remaining files (File1, File2, and File3) were all accessed within the last 70 days. Their total size is 500 GB ($200 + 100 + 200 = 500$). Since the maximum allowed local storage is 350 GB, Azure File Sync must tier additional files to satisfy the 30% free space requirement.
* Tiering Priority: Files are tiered based on their "coldness" (last access time). File3 (60 days ago) is significantly older than File1 (2 days) and File2 (10 days). By tiering File3, the remaining local data (File1 + File2) totals 300 GB, which fits within the 350 GB limit.
* Conclusion: Consequently, File1 remains cached on Server1 and the Azure file share, while File3 is tiered to The Azure file share only.