"RE (RAID EDITION) drives have a different data safe guard that allows them to work in RAIDs. These drives have a standard safety feature that corrupts RAIDs and causes the drive to be dropped from the array."
Does anyone know what this guy's talking about? I've never read anything about any hard drive that is more or less suitable than any other hard drive for use in a RAID, any type of RAID. To the best of my knowledge, any hard drive works as good as any other.
There are RAID edition drives that have benefits for parity RAIDs (i.e. RAID 3, 5, 6, 30). Then for RAID 0 "RAID" (not really a parity redundant RAID at all), non-RAID edition drives are actually preferred.
See my post on the following thread for some details about the differences between RAID (enterprise) drives vs. their workstation counterparts:
This classification system seems to be limited to WD drives.