Wdyt of Dana on a girl/woman? I have no objections to it, but its not to my personal preference
Wdyt of Dana on a boy/man? Once again no objections
Have you ever known a Dana? I know 2 Dana's, One female (Hispanic since you mention race below), and one male (Who's sister is named Damian)
How old does it seem to you (and where do you live?) It seems like a fairly older name to me, and I live in Texas.
Any expectations of race, religion, ethnicity, class of someone named Dana? Not particulary, I've always kind of seen it as a classy name, but the 2 I know were anything but