What you want to know?
if you think of making utilities on hdds or you want to know hdd how they behave in registers this is usefull to you ..but if you want to just know about modules of this hdd..as i think this would not work for you.

Well both, to be honest!

For know of course I would like to find out more about the Grizzly drive family. Short term I would like to know about modules for this drive.
(Fix my immediate problem

Long term am interested in developing more knowledge about Hard drives and develop my own software, so that I don't have to rely on other software, which doesn't support newest drives and so that I don’t get caught In such situations where I know the problem but can't fix a HD issues. I know this will take along time, so the sooner I start the better

I will open up a new post for IDE grabber.

Friend, Thank you for your help