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Why Consider this
File Replication Service is obsolete and an inefficient technology which has been replaced by DFS Replication.
Watch a Customer Engineer explaining the issue
Context and Best Practices
When a Domain Controller is running Windows 2008 Server, SYSVOL is capable of being replicated using DFS Replication, rather than the older File Replication Service.
If all Domain Controllers within the Domain are running Windows Server 2008, and the Domain Functional Level has been raised to Windows Server 2008, it is advised to start the migration process to DFS Replication for SYSVOL to take advantage of new features.
Such benefits as Remote Differential Compression are available upon migration to DFS Replication which can significantly improve performance over WAN links.
There are many other benefits to moving to DFS Replication, as detailed in the Recommended Reading.
Suggested Actions
For migrating SYSVOL from FRS to DFRS, plese follow instructions from articles in Learn More section.
Learn More
Files that are replicated through FRS are deleted on downstream replicas in Windows:
https://support.microsoft.com/kb/3099433
The Case for Migrating SYSVOL to DFSR
https://blogs.technet.microsoft.com/askds/2010/04/22/the-case-for-migrating-sysvol-to-dfsr/
SYSVOL Replication Migration Guide: FRS to DFS Replication:
https://technet.microsoft.com/library/dd640019(WS.10).aspx
Streamlined Migration of FRS to DFSR SYSVOL
https://blogs.technet.microsoft.com/filecab/2014/06/25/streamlined-migration-of-frs-to-dfsr-sysvol/