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Date: Sat, 19 Jun 2010 11:13:35 +0300
From: Andriy Gapon <avg@icyb.net.ua>
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To: Jeremy Chadwick <freebsd@jdc.parodius.com>
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Cc: Matthew Lear <matt@bubblegen.co.uk>,
	FreeBSD Stable <freebsd-stable@freebsd.org>
Subject: Re: 7.2-RELEASE-p4, IO errors & RAID1 failure
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on 18/06/2010 20:42 Jeremy Chadwick said the following:
> http://wiki.freebsd.org/JeremyChadwick/ATA_issues_and_troubleshooting
> 
> I've always read IDNF to mean "OS requested access (read or write) to an
> LBA which is out of bounds", where "out of bounds" means "not between 0
> and <last LBA>".  How exactly is that possible?  Alexander, do you have
> any familiarity with this error code per ATA spec?

I think that there is another possibility.
I think that sector IDs could be written somewhere on media, in some sector
service information block.  And if that information can not be read, then the
sector can not be found.
But I am not sure, just trying to come up with an explanation.

-- 
Andriy Gapon