From owner-freebsd-hardware@freebsd.org Thu Nov 1 11:18:43 2018 Return-Path: Delivered-To: freebsd-hardware@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0FACC10EBA1E for ; Thu, 1 Nov 2018 11:18:43 +0000 (UTC) (envelope-from frank2@fjl.co.uk) Received: from bs1.fjl.org.uk (bs1.fjl.org.uk [84.45.41.196]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "bs1.fjl.org.uk", Issuer "bs1.fjl.org.uk" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 90E04709E1 for ; Thu, 1 Nov 2018 11:18:42 +0000 (UTC) (envelope-from frank2@fjl.co.uk) Received: from [192.168.1.43] (host31-49-127-57.range31-49.btcentralplus.com [31.49.127.57]) (authenticated bits=0) by bs1.fjl.org.uk (8.14.4/8.14.4) with ESMTP id wA1B063w075025 (version=TLSv1/SSLv3 cipher=DHE-DSS-AES128-SHA bits=128 verify=NO) for ; Thu, 1 Nov 2018 11:00:06 GMT (envelope-from frank2@fjl.co.uk) Date: Thu, 01 Nov 2018 10:59:57 +0000 User-Agent: K-9 Mail for Android In-Reply-To: <032dec6a280136b4b80d77715b0b1b17@mail-on.us> References: <032dec6a280136b4b80d77715b0b1b17@mail-on.us> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: When is sataIII actually sataIII? To: freebsd-hardware@freebsd.org From: "Frank Leonhardt (M)" Message-ID: <441037E6-67AD-49A9-9151-3F617A7AE1AE@fjl.co.uk> X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Nov 2018 11:18:43 -0000 On 1 November 2018 05:14:35 GMT+00:00, spamless@mail-on=2Eus wrote: >Hi all, >I picked out, and put together some hardware for a new FreeBSD >powered box=2E I chose a WD blue drive I knew was pretty zippy=2E >But I was quite disappointed to discover that FreeBSD wouldn't >support it @6Gb=2E >The following output from dmesg(8): >GEOM: new disk ada0 >ada0: ACS-3 ATA SATA 3=2Ex device >ada0: Serial Number WD-WCC6Y3CJCTDC >ada0: 300=2E000MB/s transfers (SATA 2=2Ex, UDMA6, PIO 8192bytes) >ada0: Command Queueing enabled >ada0: 953869MB (1953525168 512 byte sectors) > >My hardware supports it; both drive, and controller=2E Yet for >some reason FreeBSD will only *acknowledge* the capabilities=2E >Do I need to impose some quirk, or something=2E > >Thanks! That is saying it will do transfers at 300 Megabytes/second on the interfa= ce=2E You'll be lucky to get that from a WD desktop drive due to mechanical= limitations=2E WD blues at 1Tb tend to do 125-150MBps tops, and the range = released a couple of years back (2015?) seem slower than the previous gener= ation, although the spindle speeds vary=2E 6G vs=2E 3G is only interesting talking to silicone drives or a SATA expan= der=2E But an interesting question - why does it say SATA2 instead of SATA3? --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E