From owner-freebsd-questions@FreeBSD.ORG  Mon Apr 11 07:37:06 2005
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From: "Ted Mittelstaedt" <tedm@toybox.placo.com>
To: "Gigi Paragsa" <gigiprg@yahoo.com>,
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Date: Mon, 11 Apr 2005 00:37:03 -0700
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Subject: RE: Need technical support
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owner-freebsd-questions@freebsd.org wrote:
> Good day!
> 
> I would like to ask for technical support on the
> problem I encountered while rebooting a server with a
> FreeBSD 3.4 as its operating system:
> 
> (da0:sym0:0:0:0):read(10).CDB: 28 0 0 79 b0 9f 0 0 20 0
>                medium error info:79b0b0asc:11,0
>                unrecovered read error field
> replaceable
>                      unit: e4 sks:80,82
> 
> Hope that you can help me out on this concern.  Thanks a lot in
> advance. 
> 
> 

How much more clear can this error message get?  It means there was
a read error when the system tried accessing a sector on the disk.
It would be highly advisable to replace the hard drive in the system.
Normally you won't see these errors until the disk is about ready to
bite it.

Ted