Date: Tue, 07 Jul 2009 22:15:43 +0300 From: Alexander Motin <mav@FreeBSD.org> To: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> Cc: FreeBSD-Current <freebsd-current@freebsd.org>, scottl@freebsd.org Subject: Re: RFC: ATA to CAM integration patch (and gjournaled previuos nodes) Message-ID: <4A539EDF.8080302@FreeBSD.org> In-Reply-To: <4A539DBA.3080702@omnilan.de> References: <4A4517BE.9040504@FreeBSD.org> <4A4FEBBC.30203@omnilan.de> <4A5053A8.2060902@FreeBSD.org> <4A5398B5.40308@omnilan.de> <4A539CA3.5030104@FreeBSD.org> <4A539DBA.3080702@omnilan.de>
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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
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