Does anyone here have any experience or advice for managing millions of files with long file names? I am moving a client from a server with Windows Server 2003 R2 Standard 32bit to Windows Server 2012. The new server has a 6TB (4x2TB) RAID 5 array. The system is installed on UEFI to enable the volume to be GPT with support for the full array size. The current partition layout is 350MB System Reserved, 100MB UEFI, 5309GB C: (Operating System, NTFS). I am thinking of shrinking the C: partition to 300GB and creating a 5000GB data partition formatted with ReFS. Does anyone have experience with ReFS and the supposed native support for long file names or large quantities of files? There are about 30 million files with a total size of 2000GB currently. I also have a Windows 7 workstation with a 3TB GPT Data Drive with one large volume on it with ~25 million files that has become unmanageable. I can't even verify data integrity as Chkdsk takes between 48 and 72hrs and the person working on this system is a 7 day a week, 10-14hr a day worker. Any thoughts about creating several smaller, say 500GB partitions?