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Date: Tue, 07 Jul 2009 22:15:43 +0300
From: Alexander Motin <mav@FreeBSD.org>
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To: Harald Schmalzbauer <h.schmalzbauer@omnilan.de>
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Cc: FreeBSD-Current <freebsd-current@freebsd.org>, scottl@freebsd.org
Subject: Re: RFC: ATA to CAM integration patch (and
	gjournaled	previuos	nodes)
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Harald Schmalzbauer wrote:
> Alexander Motin schrieb am 07.07.2009 21:06 (localtime):
> ...
> Thanks for your aeplanations!
> 
>>> Feature                      Support  Enable    Value           Vendor
>>> write cache                    yes    no
>>> read ahead                     yes    no
>>
>> It is probably the truth. Existing ATA driver enables this features 
>> during drive reset sequence. New one doesn't do it yet.
> 
> Ic, but my "real" HD ast it enabled:
> 
> Does the old school HD enable caches itself?

Yes. At least this specific one.
My OCZ Vertex SSD also has them enabled by default.

-- 
Alexander Motin