Exercising ATA disks in hopes of revealing errors

[Doug Poland]

Hello,

I've just come into possesion of a bunch of 80GB ATA drives.  I'd like
to quickly and efficiently test each drive to see if it's free of
errors and suitable for deployment in non-critical workstations.

Using FreeBSD 6.x as a testing platform, what tools do people use to
stress-test disk drives?  I've searched ports and done some googling
but nothing stands out.

Thanks for your help.


-- 
Regards,
Doug