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	Alessandro Gallo <llgxela@gmail.com>
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Date: Tue, 30 Nov 2010 21:21:01 GMT
From: Alessandro Gallo <llgxela@gmail.com>
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Cc: 
Subject: kern/152720: Weird Hard Disk clicking noise on system shutdown
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>Number:         152720
>Category:       kern
>Synopsis:       Weird Hard Disk clicking noise on system shutdown
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Nov 30 21:30:15 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Alessandro Gallo
>Release:        8.1-RELEASE
>Organization:
>Environment:
i386 architecture, generic kernel, default installation.
>Description:
The HDD of the system makes a weird clicking noise when powered off 
with shutdown or halt using ACPI. I experienced this problem on three 
different machines (two laptops and one desktop). It's like the Hard 
Disk heads are not parked before the power is cut off. Same problem 
on OpenBSD but not on NetBSD, where some parking is made. I fear this 
problem could potentially shorten the life of my HDDs. Thank you.
>How-To-Repeat:
Turn off the system via 'shutdown -hp now' or 'halt -p'
>Fix:
None as of now.

>Release-Note:
>Audit-Trail:
>Unformatted: