please recommend a disk-exercising program?

John . comp.john at
Sun Jun 7 09:43:42 UTC 2009

Hello list,

Can anyone please recommend to me a program that will stress-test a
disk? If it matters, two are connected by firewire, another via usb.
Filesystem is ufs. I think I have a disk that might be about to fail,
but it only sometimes errors when under stress. I need to see if it
was a fluke or to really make it fail, so that I can get rid of it.


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