I just got off the phone with an official representative of WD. The conversation was about a failed 500GB MyBook, model WD5000C032. S/N xxxxxxxxxxxx Reference xxxxxxxxxxxxx
While the disk is out of warranty, I was surprised to hear the rep tell me very specifically that the lifespan of this product is 5-years and no more. Furthermore, how can any kind stability or longevity be expected from a disk that runs at 66
C - 68C? That’s way beyond the specification any low-cost consumer-class drive. There is no provision for either passive or active cooling. And it was a bad decision to put a hot running drive in an enclosure. This drive has 8 surfaces and 8 heads, that’s a lot of mass to spin. And the 8 surfaces make a lot of drag, thus straining the motor and making the +60`C operating temperatures unavoidable. Defective by design.
For certain I am quite thoroughly upset that I had purchased a disk with a known design life of 5 years. Not being informed of that is the worst part.
I had trusted WD to design something good, as they have done in the past. But not this time. This particular drive has failed because of overheating and no other reason.
So if you have earlier MyBooks, best be sure they are backed up.