You might have a drive with the 3.3v reset issue. These drives will work fine if connected via USB or with a molex—>SATA adapter but connected directly to SATA they don’t power up due to reset loop. The solution is to put kapton tape over SATA power pin 3 on the drive. You can overlap 1 and 2, if you can't cut a piece small enough for just #3.
Search for SATA 3.3v reset and you will get lots of info. It varies by drive. Some work, some don’t without the tape.
UPDATE: I added a shucked 8TB Easystore to my array last week (all my 8TB drives are shucked from Easystore enclosures). It was a white label EMAZ drive and I assumed it would have the issue and was prepared to do the tape thing. Fortunately, the backplane on my hot-swap cage negated the 3.3v reset since it is powered by molex connectors, a fact I had forgotten.
Many SATA drives manufactured from late 2017 on will have the 3.3v reset issue, especially WD white label 8TB EMAZ drives shucked from BB Easystore enclosures. 3.3v reset is a new standard, but, a lot of older power supplies don't support it, thus, the tape or other solutions like molex--> SATA adapters, snipping a wire on the SATA connector, etc. I prefer the tape as it is reversible and easy to do.
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