I’m using Seagate drives (ST3600057SS) in a Dell Precision T7500 workstation. I have question regarding the reading the temperature of the drive:

1. If you look at this document (http://www.seagate.com/files/www-conten ... 16226f.pdf) and go to page 24/25, it shows the location of the "HDA temperature check point". I presume this is where I measure the temperature and not underneath or on top of the drive?

2. There is also another temperature value which is given by reading one of the S.M.A.R.T. attributes. This, I presume, is measured from the drives internal temperature sensor? How accurate are these sensors?

The hard drive datasheet only talks about measuring the temperature externally i.e. (1); it never talks about reading the S.M.A.R.T. attribute. Which of these temperatures do I use to determine if the drive is reaching its maximum temperature because (2) can be as much 15C hotter than (1)?

Thanks for your help.