I brought 4 WD Green 2TB disks 7-8 years ago. All failed in the next few years because their firmware was parking the heads after 8 seconds of inactivity. And they were rated for 300.000 cycles so at the time that become common knowledge I already had one failed disk and 3 others with way more cycles than it should. Sadly, flashing new firmware didn't stop the rest from failing.
