Date: Sat, 27 Jun 2009 16:01:48 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Alexander Motin <mav@FreeBSD.org> Cc: FreeBSD-Current <freebsd-current@freebsd.org>, scottl@FreeBSD.org Subject: Re: RFC: ATA to CAM integration patch Message-ID: <20090627160148.00004336@unknown> In-Reply-To: <4A4600D8.5020105@FreeBSD.org> References: <4A4517BE.9040504@FreeBSD.org> <20090627125036.000017f1@unknown> <4A4600D8.5020105@FreeBSD.org>
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On Sat, 27 Jun 2009 14:22:00 +0300 Alexander Motin <mav@FreeBSD.org> wrote: > Alexander Leidinger wrote: > > On Fri, 26 Jun 2009 21:47:26 +0300 Alexander Motin <mav@FreeBSD.org> > > 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.
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