Hi Phillxnet,
From the discussion above I ran through a few tests with what I have and Posted it as a new thread.
I’m happy to gain some feedback if I had done the tests in the wrong way or not.
From what I’m gathering from your comment above and my test that I have linked to below is that USB 2.0 Interface is not suitiable for Rockstor OS Drive.
As for comparison to the tests above, the Sequential Writing test is the best comparison (Difference being the payload being written, 791MB vs 200MB in my tests.);
The decision I made to use the Drive that I had, was before I had read up on all support topics or had gotten use to using Rockstor. I’d make a different decision going ahead now.
I have concerns as HDD speeds can be very variable also.