I have just added 2 x 2 TB drives to my my Drobo which now has 2 x 1 TB and 2 x 2 TB installed. I had not made sufficient allowance for expansion when I first set it up so I used reset in Drobo Dashboard, set the max storage to 16 TB and allowed Drobo to reformat (HFS+).
I have now copied about 890 GB to the Drobo. I have 4 green lights and two blue lights which seems fine. However, I have not seen the blinking green and yellow indicating that Drobo is going through optimization. Is this OK?
I apologise for asking such a basic question but how do I know that Drobo is protecting my data? To me it looks like I might have just a large external drive.