Synology seems to further favor their “own” (re-labeled, Toshiba- and Seagate-produced) drives instead of the numerous other once which still appear in the official HCL like we knew it over the years, starting with the 25-Plus-models.
https://www.heise.de/en/news/Synology-restricts-choice-of-hard-disks-for-new-Plus-NAS-10356960.html
I don’t support this decision in any way, but I can at least think of some legitimate motivation for it (assuming the Synology branded ones aren’t marked up from the equivalent Seagate/Toshiba ones). I imagine Synology has to deal with a lot of service calls and returns for issues that are caused by shoddy drives (like those Seagate drives with the fudged lifespan numbers), not by anything that they can directly control.
In reality, the above was probably what sparked the idea, but I’m betting that they’re going to jack up the price of those drives just to squeeze out a little more profit for this quarter.
They could’ve just had approved disks and a one time warning when not using them that performance may be degraded and that you wouldn’t get support for questions related to it.