We may need to check some materials about how to do good research in system field if you a Ph.D. focusing on system research.
Welcome to add some other good materials here. I will also add some others if I find good ones.
There are many good links in https://www.cs.utexas.edu/users/dahlin/advice.html .
And I really like some points in John Oursterhout’s “Sayings”: http://web.stanford.edu/~ouster/cgi-bin/sayings.php .