From owner-freebsd-questions@FreeBSD.ORG  Tue Feb 19 09:35:38 2008
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 5E0DF16A41A
	for <freebsd-questions@freebsd.org>;
	Tue, 19 Feb 2008 09:35:38 +0000 (UTC)
	(envelope-from oceanare@pacific.net.sg)
Received: from smtpgate2.pacific.net.sg (smtpgate2.pacific.net.sg
	[203.120.90.32])
	by mx1.freebsd.org (Postfix) with SMTP id 9319313C43E
	for <freebsd-questions@freebsd.org>;
	Tue, 19 Feb 2008 09:35:37 +0000 (UTC)
	(envelope-from oceanare@pacific.net.sg)
Received: (qmail 22074 invoked from network); 19 Feb 2008 09:35:35 -0000
Received: from adsl246.dyn234.pacific.net.sg (HELO P2120.somewherefaraway.com)
	(oceanare@210.24.234.246)
	by smtpgate2.pacific.net.sg with ESMTPA; 19 Feb 2008 09:35:32 -0000
Message-ID: <47BAA2DE.9080008@pacific.net.sg>
Date: Tue, 19 Feb 2008 17:35:26 +0800
From: Erich Dollansky <oceanare@pacific.net.sg>
User-Agent: Thunderbird 2.0.0.6 (X11/20070826)
MIME-Version: 1.0
To: "s.g." <grigorian@theconcept.ru>
References: <47BA962E.5060504@theconcept.ru>
In-Reply-To: <47BA962E.5060504@theconcept.ru>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-questions@freebsd.org
Subject: Re: GELI encryption and HDD critical temperature
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 19 Feb 2008 09:35:38 -0000

Hi,

this problem is caused by how the drives are installed in the machine.

Can you add a fan?

Erich

s.g. wrote:
> Guys,
> I notice occasional overheating of my GELI-encrypted hard drives 
> followed by the reboot.
> This happens when there is heavy activity on the drive - eg when trying 
> to dump partitions.
> There are 4 drives i have, three encrypted and fourth is plaintext.
> According to smartctl -a, the temperature of the encrypted drives is 
> ~59C. The temperature of the unencrypted drive is, however,  ~41C, 
> according to the same smartctl -a.
> All the four drives in question are Seagate ST3400620AS/3.AAC, GELI 
> encryption is default AES, no data authentication. This is on 
> 6.2-RELEASE-p8.
> Am I right assuming  GELI encryption is the reason for such a "global 
> warming"?
> Thanks in advance,
> 
> Grigorian
> _______________________________________________
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to 
> "freebsd-questions-unsubscribe@freebsd.org"
>