From owner-freebsd-current@FreeBSD.ORG Sat Jun 27 14:02:03 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BCFA3106566C; Sat, 27 Jun 2009 14:02:03 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from mail.ebusiness-leidinger.de (mail.ebusiness-leidinger.de [217.11.53.44]) by mx1.freebsd.org (Postfix) with ESMTP id 7418D8FC0C; Sat, 27 Jun 2009 14:02:03 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from outgoing.leidinger.net (pD954FA84.dip.t-dialin.net [217.84.250.132]) by mail.ebusiness-leidinger.de (Postfix) with ESMTPSA id 477D3844020; Sat, 27 Jun 2009 16:01:56 +0200 (CEST) Received: from unknown (unknown [192.168.2.1]) by outgoing.leidinger.net (Postfix) with ESMTP id 3344C1BC3C9; Sat, 27 Jun 2009 16:01:53 +0200 (CEST) Date: Sat, 27 Jun 2009 16:01:48 +0200 From: Alexander Leidinger To: Alexander Motin Message-ID: <20090627160148.00004336@unknown> In-Reply-To: <4A4600D8.5020105@FreeBSD.org> References: <4A4517BE.9040504@FreeBSD.org> <20090627125036.000017f1@unknown> <4A4600D8.5020105@FreeBSD.org> X-Mailer: Claws Mail 3.7.1 (GTK+ 2.10.13; i586-pc-mingw32msvc) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-EBL-MailScanner-Information: Please contact the ISP for more information X-EBL-MailScanner-ID: 477D3844020.CF5E1 X-EBL-MailScanner: Found to be clean X-EBL-MailScanner-SpamCheck: not spam, spamhaus-ZEN, SpamAssassin (not cached, score=-1.44, required 6, autolearn=disabled, ALL_TRUSTED -1.44) X-EBL-MailScanner-From: alexander@leidinger.net X-EBL-MailScanner-Watermark: 1246716118.87346@pn0DUJWl3bGt/272ZkEvDA X-EBL-Spam-Status: No Cc: FreeBSD-Current , scottl@FreeBSD.org Subject: Re: RFC: ATA to CAM integration patch X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Jun 2009 14:02:04 -0000 On Sat, 27 Jun 2009 14:22:00 +0300 Alexander Motin wrote: > Alexander Leidinger wrote: > > On Fri, 26 Jun 2009 21:47:26 +0300 Alexander Motin > > wrote: > >> - make sure that you will be able to boot if your SATA disk > >> devices name change from some ad4 to ada0; > >=20 > > Will it stay at adaX, or is it planned to move it to daX like other > > harddisks attached via SCSI? If it stays like it is now: what's the > > rationale to use a different name? >=20 > It is still point of discussion. I have arguments for 3 different > options: > da - PRO: habitual CAM/SCSI disk name; CONTRA: ATA disk uses=20 > completely separate ATA-native peripheral driver, it is difficult use=20 > the same name for two drivers and it IMHO looks ugly: One could argue that the USB stuff which identifies itself as daX is a completely separate peripheral driver too, but we have daX for it... For an user it is not really interesting if it is via ATA, SCSI, or whatever, if he wants a harddisk, he wants a harddisk and normally does not care about the transport. > ad - PRO: habitual ATA disk name; CONTRA: heavily conflicts with=20 > ATA_STATIC_ID ata(4) option device unit numbering, also the same > driver name conflict, but a bit easier due to different parent bus; I agree. > ada - PRO: perfect from internal infrastructure PoV; CONTRA: just=20 > unhabitual. =46rom a personal POV, I do not care much, but from an usability POV I don't think it's a good idea. Bye, Alexander.