From owner-freebsd-current Sun Dec 9 20: 9:44 2001 Delivered-To: freebsd-current@freebsd.org Received: from monorchid.lemis.com (monorchid.lemis.com [192.109.197.75]) by hub.freebsd.org (Postfix) with ESMTP id 04C0637B416 for ; Sun, 9 Dec 2001 20:09:39 -0800 (PST) Received: by monorchid.lemis.com (Postfix, from userid 1004) id 5D1AC786E3; Mon, 10 Dec 2001 14:39:36 +1030 (CST) Date: Mon, 10 Dec 2001 14:39:36 +1030 From: Greg Lehey To: Terry Lambert Cc: Daniel O'Connor , sthaug@nethelp.no, freebsd-current@FreeBSD.ORG, j@uriah.heep.sax.de, joerg_wunsch@uriah.heep.sax.de Subject: Re: "Dangerously dedicated" yet again (was: cvs commit: src/sys/kern subr_diskmbr.c) Message-ID: <20011210143936.F63585@monorchid.lemis.com> References: <44735.1007899299@verdi.nethelp.no> <20011210105025.H83634@monorchid.lemis.com> <3C142200.1746FFA2@mindspring.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3C142200.1746FFA2@mindspring.com> User-Agent: Mutt/1.3.23i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sunday, 9 December 2001 at 18:46:24 -0800, Terry Lambert wrote: > Greg Lehey wrote: > > [ ... IBM DTLA drives ... ] No, that wasn't me. > IBM DTLA drives are known to rotate fast enough near the spindle > that the sustained write speed exceeds the ability of the controller > electronics to keep up, and results in crap being written to disk. What about the cache? > This is not often a problem with windows, the FS of shich fills > sectors in towards the spindle, so you only hit the problem when you > near the "disk full" state. This sounds very unlikely. > Do a Google/Tom's Hardware search to reassure yourself that I am not > smoking anything. I think I'd rather put the shoe on the other foot. This looks like high-grade crack. Who was smoking it? >>> I don't understand the need some people have for using something that is >>> labelled as DANGEROUS. >> >> I don't understand the need some people have for labelling something >> as DANGEROUS when it works nearly all the time. I *did* write this. > It's because you have to reinstall, should you want to add a second > OS at a later date (e.g. Linux, or Windows). So all dedicated installations are dangerous? I would have to do that whether I had a Microsoft partition table or not if I had already used the entire disk for FreeBSD. >> We don't have many disks which are shared between different platforms, >> but that will change. As you know, I have the ability to hot swap >> disks between an RS/6000 platform and an ia32 platform. The RS/6000 >> disks will never have a Microsoft partition table on them. They will >> have BSD partition tables on them. Why call this dangerous? > > Your use is orthogonal to the most common expected usage, which is > disks shared between OSs on a single platform, rather than disks > shared between a single OS on multiple platforms. Expected usage is to install once and then never change it. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message