a) Can I do a defrag on the logical drive (formatted using NTFS). I tried using Raxco’s PerfectDisk (latest version) - and after 1 minute or so - the Shuttle’s drive letter will disappear from Windows. I have no issues using PerfectDisk on all other hard-disks. The only way to recover the problem is to force a reboot of Windows.
b) This is a brand new box - less than 24 hours old.
c) There is about 3TB of data on the box now - logical drive is using RAID 5.