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From: Jay Moore <jaymo@cromagnon.cullmail.com>
To: freebsd-questions@freebsd.org, Unreal HSHH <hunreal@gmail.com>
Date: Fri, 7 Jan 2005 01:35:41 -0600
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Subject: Re: Howto check the hard disk bad sectors in FreeBSD?
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On Tuesday 04 January 2005 11:13 pm, Unreal HSHH wrote:
>
> I have one harddisk installed in FreeBSD.
> And I want to check if any bad sectors on it.
> How can I do ? It seems the fsck can't do this.

I'm not sure this can be done, but if you're looking for something to monitor 
the health of your drives there are a number of utilities available that use 
the "S.M.A.R.T." feature built into most current hard drives. In general, 
these utilities will help you predict failure of your HDD.

Here's one such tool:
http://smartmontools.sourceforge.net/

HTH,
Jay