It’s probably too late for you, but a quicker way to move data to an unRAID server is to NOT activate a parity drive prior to moving. This will disable the parity check process during copying data and will result in at least double the transfer rate. Typically, I get around 11MB/s with parity enabled. With it disabled, expect whatever the true transfer rate of the drive is, minus overhead for SMB (you can expect anywhere from 25MB/s all the way into the 50-60MB/s range). After your copy is complete (make sure you don’t cut and paste, eliminating an existing copy if anything goes wrong), simply enable parity, let it calculate and enjoy your new protected data store :)

Thanks for the response. It sounds like a fluke. I’ve been enjoying unRaid so far but it’s a little slow to move over my old data. I am happy I’m not running WHS anymore though. unRAID appears to be rock solid, quick to boot, and easy to manage. It’s fun to read your experiences with this product. Keep up the good work!

I never did, but I have to take some blame as I should have taken notice that they were detected as new drives to begin with. I could have at least gone to the unRAID forum to find out what I needed to do before hitting that Restore button.
Port multipliers with unRAID is quite new and I’m pretty sure I’m only one of a handful that are even doing it right now (I only know of two others from the forums that use them). I still find unRAID to be much more reliable and useful as a pure NAS than WHS.

Did you ever find out why these were detected as new drives? This scares me as I’ve had some drive failures lately with WHS and just got UNRAID up and running to avoid issues like this.