The HPC paper struck me as a lot more detailed, rigorous and useful. I read the Google paper later (assuming we're talking about the same one, they came out at

The HPC paper struck me as a lot more detailed, rigorous and useful. I read the Google paper later (assuming we're talking about the same one, they came out at roughly the same time), and the only useful takeaway I got from it was that disk companies seem to have solved moderately high temperature issues, Google actually saw a correlation with longer life and higher temperatures.