Capstone (so to speak):
I booted from the Seagate CD and ran both the quick and full diagnostics on the disk. It failed them both.
Now I'm wondering what's the best way to destroy all the data on the drive so I can return it without my stuff, unreliable or not, on it.
I suppose a dd from /dev/zero to the whole disk might work - am I right? I'm not sure what block size or how many - it's a 400Gb drive....
My favorite utility for whiping a drive is DBAN: http://dban.sourceforge.net/
You can get as crazy as you want to ;-) including specifying multiple pass etc. His screenshots give a better idea of what some of the options are but so far, it's better than even some of the commercial applications they were using at my current client site.
-- Lonny