From: Tejun Heo <tj@kernel.org>
To: Francois Cartegnie <fcartegnie@free.fr>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: Drives which perform frequent head unloads under Linux
Date: Mon, 16 Feb 2009 12:52:39 +0900 [thread overview]
Message-ID: <4998E307.2010903@kernel.org> (raw)
In-Reply-To: <200902121414.46309.fcartegnie@free.fr>
Francois Cartegnie wrote:
> Le jeudi 12 février 2009, vous avez écrit :
>> Francois Cartegnie wrote:
>>> MSI Megabook S425
>>> MK8025GAS (unload every 8/10sec)
>>> Workaround with APM to 254 (but doesn't disable totally).
>> From the smartctl output,
>>
>> 9 Power_On_Hours ... 2791
>> 193 Load_Cycle_Count ... 100209
>>
>> Which gives us 35.9 load cycles per hour which is kind of okay. Is
>> this because you have been running the system with APM value adjusted?
>
> The system has been fixed early, so It's not revealant.
> The head clicks 3-4 seconds after the disk activity, which means that if you
> are using ext3 with default commit time, you have a cycle every 5-6 seconds.
Alright, added and pushed out. Thanks.
--
tejun
next prev parent reply other threads:[~2009-02-16 3:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-03 13:29 Drives which perform frequent head unloads under Linux Francois Cartegnie
2009-02-12 1:52 ` Tejun Heo
[not found] ` <200902121414.46309.fcartegnie@free.fr>
2009-02-16 3:52 ` Tejun Heo [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-07-28 8:11 James Brown
2008-09-07 6:04 Omar A
2008-09-29 7:24 ` Tejun Heo
2008-09-30 19:10 ` Tejun Heo
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