Date: Thu, 04 Aug 2005 12:29:46 -0300 From: =?ISO-8859-1?Q?Tulio_Guimar=E3es_da_Silva?= <tuliogs@pgt.mpt.gov.br> To: freebsd-hardware@freebsd.org Subject: Re: hard drive noises -- western digital wd800ve Message-ID: <42F2346A.50300@pgt.mpt.gov.br> In-Reply-To: <20050804011439.GA66267@neptune.atopia.net> References: <20050801170723.GA90601@neptune.atopia.net> <BAY105-F17536F085654971AF065CAC1C40@phx.gbl> <20050804011439.GA66267@neptune.atopia.net>
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Hi gentlemen,
I donīt know if itīs related, but (I went to investigation) thereīs
a known issue with WD HDs from 40 to 200GB prior to 2003/03/25 (March
25, 2003 - dates are always confusing :) ); even though itīs associated
to RAID-controllers, it seems indeed that there is some kind of timeout
generated by the acoustic reduction features of the drives.
Hereīs the link to the explanation:
http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=913
In short, there seems to be a bit to be disabled at run-time, *but*
the utility is only available to Windows systems. ŽŽ It can be
downloaded here:
http://support.wdc.com/download/index.asp?cxml=n&pid=4&swid=11
Maybe itīs an issue that could be trated by the ata(4) driver or
sysctl (if not already), but... *maybe*; thatīs really not for me to
tell. :P
Anyway, I guess people with this issue should contact WD or a
reseller. Since itīs a somewhat limited issue, *and* itīs known to the
manufacturer, I think they wouldnīt oppose to replace the affected drive(s).
Cheers,
Tulio G. da Silva
Dan Ponte wrote:
>On Wed, Aug 03, 2005 at 09:01:52PM -0400, Michael Roberts <tpen0010@hotmail.com> was witnessed plotting the following conspiracy:
>
>
>>hi,
>>
>>thanks for all your responses. i've heard similar things, and am getting a
>>replacement drive sent out from WD. however, a few interesting things:
>>
>>1) the frequency of the tic/toc noises (really they sound like "toc - tic"
>>..) decreases when i disable acpi. i should have done this before, of
>>course.... I haven't tried switching to apm. but w/o acpi, performance is
>>pretty good, and i don't get the delays with tab-completion.
>>
>>2) i've run every hardware tester i could get my hands on, and none of them
>>find any bad sectors/block/anything. the drive always checks out.
>>
>>this is all making me think that i've just got my system configured wrong.
>>like maybe i need some special device in my kernel for this particular
>>drive? or maybe i need to mess with acpi settings to get things
>>streamlined?
>>
>>any suggestions along these lines? or should i just trash the thing...
>>
>>thx again.
>>
>>
>>
>Well, this drive is probably 4 or 5 years old by now, and I'm pretty
>sure it's been clicking along since I got it. ACPI would make sense;
>maybe the BIOS or something is trying to turn off the drive motor, but
>the OS needs to use it, so it turns back on. This is rather farfetched,
>though, as it happens usually during load. I have ACPI enabled, but
>dmesg tells me that my BIOS is blacklisted, so I doubt it's really
>enabled.
>-Dan
>
>
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