Hi. I have a Drobo 5D, which I’ve been using for a few years, with three 3.5" seagate 4G disks in bays 1, 3, and 5. Previously, I have grown the array by simply inserting a new disk into an unused bay. But I have now tried 3 different brand new seagate disks in bay 2 and bay 4, but they fail to spinup/light up in those two bays. Note that the disks are the same exact model of disk that has been working successfully in the other bays.
With a flashlight, I have taken a photo inside the open bays, and notice that there is no power connection in the 2nd & 4th bays, although there is a yellow ribbon cable where the power connector would be, running up the back of the bays. I cannot see if a connector is present in the 3 working bays without removing a working disk, which I have not done yet.
http://www.drobo.com/storage-products/5D says “Up to five (5) 3.5″ SATA II/III hard disk drives or solid state drives (sold separately).” so I don’t see why bays 2 & 4 would only support 2.5" (not requiring separate power).
Anyone have any input into this problem? Can the normal sata interface (i.e. what the 2.5" drive has) supply enough power for 3.5" drives? If so, then there’s some other problem with the 5D that it’s not powering those bays.
hi, can i check if the working drives (in bays 1, 3, 5) are 3.5in drives
and are the ones that you are trying to put into bays 2 & 4, only 2.5in drives?
there may be some other ways to test the bays but i think the 5d can only take 3.5in drives.
(i may have have misunderstood when you mentioned 2.5 but if you have a moment to help clarify it would be cool)