My experience with DX4000 is reaching unparalleled levels of incompatibility between the NAS and hard disk drives. I realized the DX4000 is compatible only with a few WD drives, with lot of difficulties I managed to buy drives claimed compatible with the DX4000: WD4000F9YZ-09N20L0 (4Tb) after having tried the same drives but ending with 1 which did not work (bad storage was shown when trying the recovery).
I installed the two new 4Tb WD4000F9YZ-09N20L0 hard drives on the DX4000 and the recovery after a little while still showed BAD STORAGE. The WD support now claims that you cannot install a 4Tb drive (listed in the compatible drives) in place of the hard diks of a DX4000 sold with 2Tb drives due to firmware issues.
While I really wonder how an hardware can be designed with such limitations, my question is that whether it is really true that you cannot replace in a DX4000 sold with 2Tb hard drives, hard disks with 3 or 4 Tb compatible ones. I looked through the documents but this looks to me not reported.
thank you and regards