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From: John Almberg <jalmberg@identry.com>
Date: Tue, 12 Aug 2008 09:25:14 -0400
To: freebsd-questions@freebsd.org
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Subject: Re: Monitoring raid health with mpt
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On Aug 11, 2008, at 5:51 PM, Chris Hastie wrote:

> I have a Dell PowerEdge 860 with SAS 5iR RAID controller and FreeBSD
> 6.2. The controller is configured for RAID 1. The controller is
> recognised as mpt0 and seen as a SCSI device da0. All seems to be
> working fine, but is there any way to tell if one of the disks fails?

I was thinking about this same question over the weekend. I have no  
idea what the answer is, but am hoping someone has one.

I'm pretty sure an answer exists... I have an Intel motherboard with  
a hardware raid controller. I'm sure the controller knows if a drive  
fails, and maybe even logs the event somewhere... I'm just not sure  
where. I'm going to try digging in the docs for my raid controller...

-- John