If using Dual LITE what hard drive are you using with it? And how has that hard drive been working for you?
WD Scorpio Blue WD3200BEVT, ran a couple years with out issue in one unit and another just over a year in another. Each in a Sabrent EC-UST25 enclosure.
Now have a Tablo Quad and retired one so far.
WD (2TB) Elements Portable External Hard Drive USB 3.0. The Tablo Dual Lite will use downward capable USB 2.0 which is fine for everything it is doing.
I am using a 5TB WD drive I got on sale at BestBuy for $100! Has been working like a charm so far.