External Drives for Mac Experiencing Data Loss with Maverick OS -- UPDATED FOR NOVEMBER 6, 2013

I have a MyBook Thunderbolt duo set to RAID 1 in mavericks that is currently operating just fine.

Is the WD Drive Manager the same as the WD utility drive manager that is having these issues? I am noticing that the utility (version 1.1.7.5) is still available for download but the drive manager (version 2.26 or similar) is not. Can someone confirm? Are these the same? I don’t think the utility software is running in the background for this drive performing tasks.