[CentOS] Question on failing hard drives

[nate]

Jimmy Bradley wrote:
>       In my Cent OS machine, I have 3 hard drives, an 80, and two 200gig
> hard drives. One of the drives is obviously starting to fail, but I'm
> not sure which one. Is there a command line command in Linux that will
> check the drive integrity on all the hard drives and tell me which one
> is going bad?
>

Best way is to use the manufacturer's tools to determine drive health.
Depending on the disk you may be able to query the drive's SMART status,
this looks like a useful article on SMART:

http://www.linuxjournal.com/article/6983

Also you can check the kernel log(dmesg for the latest events) to see
if there are errors related to the drive(such as read errors, drive
resets etc).

nate