Ugh, source on that? In the market for a new NAS/Homeserver soonish (realized my drives are almost at 10 years of power on time) and would like to have spinning rust behind ssd for larger storage.
SMR drives aren’t inherently bad, but you must not use them in a NAS. The may work well, up until they don’t, and then they really don’t. WD snuck these into their Red line, the one marketed at NAS users. The end result after a huge reputational hit was to promise to keep the Red Pro line on HMR, but the plain Red line is still a coin flip, AFAIK.
I will not use WD drives in a NAS. It’s all about trust, and they violated it to as astonishing degree.