From owner-freebsd-geom@FreeBSD.ORG  Wed Feb 14 11:46:45 2007
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To: "..."@twoflower.idi.ntnu.no
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Wed, 14 Feb 2007 12:12:59 +0100."
	<20070214111259.GB60265@twoflower.idi.ntnu.no> 
Date: Wed, 14 Feb 2007 11:46:42 +0000
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Cc: freebsd-geom@freebsd.org
Subject: Re: The right way to remove disk drive 
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In message <20070214111259.GB60265@twoflower.idi.ntnu.no>, Ulf Lilleengen write
s:
>On ons, feb 14, 2007 at 11:45:47am +0100, Miroslav Lachman wrote:

>> used by gmirror (gmirror status shows DEGRADED and running on one drive 
>> only), atacontrol lists the drive attached to channel ata3, so I run 
>> command `atacontrol detach ata3`. As stated in manpage "Devices on the 
>> channel are removed from the kernel". Everything goes fine, system is 
>> running.... but if I pull out the drive tray, system hangs and must be 
>> power cycled.

Not all ata controller chips actually support hot-plug.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.