Reviews for WD 6TB My Book Thunderbolt Duo Dual-Drive Storage System

I got the same unable to config error message the first times I tried, but as a previous review noted, you need to eject the WD Drive Utilities disk image after installing the software before you try configuring the drive. Working well for me so far.

I was debating getting this one or the Lacie thunderbolt 6gb raid and I bought the my book one because it was cheaper. big mistake! It failed right out of the box. I can't configure it to a raid 1 and the customer support is closed.

Please beware - these drives do have fan and its gets quite loud after long copy operations! The 40 mm fan is located on the front side and gets really annoying if you transfer large amounts of data.
I was mislead by other WRONG reviews who mention that drives are fanless and I am really disappointed now.;(

I am an audio engineer who uses Pro Tools for my DAW, and I demand speed and rigor with all of my computer products. The drive performs fantastically. My data is accessed fast and seamlessly. With the WD Utilities included you are limited to RAID 0 with 6TB, RAID 1 with 3TB, or two individual drives with no RAID present. Using disk utility, I partitioned each drive into two 1.5TB sections. I then formed two RAID 0 disk images. By doing this, you can have much greater performance in two disk images. Overall great product. With the partitioning method above, this drive is extremely useful for people interested is having external storage and Time Machine capabilities in one drive. Thank you Western Digital!

I don't know if you figured this out or not, but I had the same problem. The reason was that the WD Configuration tools installer was still mounted as an image.
Eject the installer, then configure again. It works fine.

It is absolutely silent, has better speeds than my internal HD, or any Firewire on the market, and is relatively inexpensive. The configuration tool is refreshingly simple.

This is a good balance between value and performance, and I feel it can sit behind my iMac happily spinning away without screaming for attention with it's big Blue eye (ahem, Lacie).

Some My Book Thunderbolt reviews have focused on how the Cavier Green drives make this one of the slowest Thunderbolt storage solutions. Yet it is way faster than non Thunderbolt drives, even USB 3.0. I have the 6TB MyBook Thunderbolt set to RAID1 mirroring. I got so tired over the years of having hard drives die, this is the perfect solution for backing up precious content. I also stream audio and video media to iTunes from the drive without issue. When one of it's two 3 TB drives eventually goes bad in my RAID1 configuration, the included software will report it, while you still have a completely functional drive running off the remaining good drive. Replacing the bad drive with another Cavier Green drive is a snap, literally, right from the top. Gone are the days of of data loss worries. It's a very quiet drive as there is no fan. Cavier Green drives are very efficient, quiet and heat wafts up through the top grill. You can run it as one 6TB RAID0, or a 3TB RAID1 mirror, or 2 independent 3TB drives (JBOB). am very happy with this drive and highly recommend it. Good price for what you get.