Previously I had a Synology DS 212j in RAID 1 mode and wanted to see our newly donned HDD / deployment design. Therefore, now the Bay 4 variant with respect with room for improvement. Capacity and streaming. Because I swear to Synology or its software, only the migration of the "old" plates in the DS415play was the only question mark for me. But everything went incl. The acquisition of the previous settings Users / Groups / energy management etc. totally clean and unspectacular vonstatten (please read / in the I-Net looking but previously).
Clear recommendation - for Synology anyway - which I admittedly with QNAP (MMN only alternative) does not know much about and probably is also no need for reading.