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Date: Fri, 16 May 2003 09:30:03 +1000 (EST)
From: Andy Farkas <andyf@speednet.com.au>
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To: Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>
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Subject: Re: How to detect hard disk failure ?
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On 15 May 2003, Lowell Gilbert wrote:

> >    Is there a way to detect hard disk failures using either a shell script
> > or C program ? So that I can take appropriate action in case of a hard
> > disk failure.
>
> You can keep watch the logs for errors accessing the disks...

You can do a "dd if=/dev/ad0 of=/dev/null bs=64k" to read the entire disk
surface - if there are bad blocks, read errors will show up on the
console.

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        Andy Farkas
    System Administrator
   Speednet Communications
 http://www.speednet.com.au/