From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chuck Ebbert <cebbert@redhat.com>
Subject: Re: Loud "pop" coming from hard drive on reboot
Date: Wed, 11 Apr 2007 17:35:43 -0400
Message-ID: <461D54AF.3060706@redhat.com>
References: <461D4E2C.6000704@redhat.com> <Pine.LNX.4.61.0704112315480.20436@yvahk01.tjqt.qr>
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To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>, linux-kernel <linux-kernel@vger.kernel.org>, linux-ide@vger.kernel.org

Jan Engelhardt wrote:
> On Apr 11 2007 17:07, Chuck Ebbert wrote:
>> When I reboot my notebook, it powers off and powers back on.
>> On poweroff a loud snapping noise seems to be coming from the
>> hard drive. Today I noticed there is no "shutdown: hda" on
>> the console when I reboot. Whne I do a normal poweroff the
>> message is displayed and there is no noise. Should the IDE
>> code be changed so it always shuts down the drive?
> 
> What sort of notebook? What sort of harddisk?

Compaq Presario V2000 series, with a new Seagate ST9120821A
120GB 5400RPM drive.

> Is it as loud as `hdparm -y /dev/hdX"?

That makes no noise at all except normal drive seek noises.

> Try `smartctl -d ata -a /dev/hdX | grep -i unload` too.

Hmm.

Power_Cycle_Count ... 108
Power-Off_Retract_Count ... 90

I did a normal poweroff and the retract count went to 91.
There is an almost-unnoticeable click when I do it that way.