I'll second HDTune. I like how they highlight the troublesome SMART data in yellow.
You could also use Seatools, but I am always suspicious of utilities that are provided by the manufacturer.
I think HD Tune works with eSATA, but I don't have time to check right now.
You could also use Seatools, but I am always suspicious of utilities that are provided by the manufacturer.
I think HD Tune works with eSATA, but I don't have time to check right now.