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Date:      Tue, 05 Feb 2008 21:06:45 +0000
From:      Bruce Cran <bruce@cran.org.uk>
To:        Kostik Belousov <kostikbel@gmail.com>
Cc:        Alexander Leidinger <Alexander@leidinger.net>, current@freebsd.org, sos@freebsd.org
Subject:   Re: Load_Cycle_Count and ATA APM
Message-ID:  <47A8CFE5.5000404@cran.org.uk>
In-Reply-To: <20080205203826.GT57756@deviant.kiev.zoral.com.ua>
References:  <20080205130210.GQ57756@deviant.kiev.zoral.com.ua>	<20080205173657.z4l7gf18g00ssso4@webmail.leidinger.net> <20080205203826.GT57756@deviant.kiev.zoral.com.ua>

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Kostik Belousov wrote:
> [Replying to the original list of the recipients].
> 
> On Tue, Feb 05, 2008 at 05:36:57PM +0100, Alexander Leidinger wrote:
>> Quoting Kostik Belousov <kostikbel@gmail.com> (from Tue, 5 Feb 2008  
>> 15:02:10 +0200):
>>
>>> I noted that when idle, my laptop HDD increases the Load_Cycle_Count
>>> (193) approx. each ten seconds, as reported by smartctl. Have recently
>>> read about the Ubuntu and APM mode for hard drives, I searched for the
>>> tool to tune APM (that has functionality similar to linux' hdparm -B).
>>>
>>> It seems that FreeBSD does not have a tool ? Am I wrong ? In case I did
>>> not make a mistake, below is the patch that allows to manage APM state
>>> of the hard drive using atacontrol.
>> Any chance to also handle automatic acoustic management at the same time?
> 
> http://people.freebsd.org/~kib/misc/ata_setcap.2.patch

The PR bin/81692 also has a patch to add APM and AAM functionality to 
atacontrol on FreeBSD 6.

--
Bruce



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