From owner-freebsd-questions Fri Mar 2 9:45:15 2001 Delivered-To: freebsd-questions@freebsd.org Received: from seagull.cpinternet.com (mail.cpinternet.com [204.220.140.4]) by hub.freebsd.org (Postfix) with ESMTP id E90C937B719 for ; Fri, 2 Mar 2001 09:45:11 -0800 (PST) (envelope-from ocean@ecenet.com) Received: from ecenet.com (pr-5300-1-fa233.ecenet.com [209.240.250.233]) by seagull.cpinternet.com (8.9.2/8.9.2) with ESMTP id LAA26848; Fri, 2 Mar 2001 11:44:30 -0600 (CST) Message-ID: <3A9FDC18.3D1728A6@ecenet.com> Date: Fri, 02 Mar 2001 11:44:56 -0600 From: Porter X-Mailer: Mozilla 4.7 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 To: Artem Koutchine Cc: Christopher Farley , freebsd-questions@FreeBSD.ORG Subject: Re: Hot swap IDE device? References: <20010301112155.A5003@northernbrewer.com> <00f501c0a275$df546fa0$0c00a8c0@ipform.ru> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Well, besides the implications of damaging the drive, which we'll assume is "fixed" because of the "kit", there's the fact that the drives are mounted. I would think that with some hacking, you could get the drive to work like a cdrom. With a cdrom you can unmount, change, and mount a new one. The only problem then, I would think, would be the BIOS freaking out because you just swapped a 500MB drive for a 7TB drive :) I would have no clue how to go about this, my assumption is that you'd have to have a program that manipulate the BIOS, or a program to "bypass" anything the BIOS cares about. I don't even know how much the BIOS has to do with the computer once it is fully booted, so these are just speculations. Michael Porter ocean@ecenet.com Artem Koutchine wrote: > This is a bad idea. IDE is not a plug-n-play (or to say > it right: HOT SWAP) bus. You might disconnect > a drive more or less safely, but reconnecting a drive into > a working system can cause all kinds of troubles. And it > has nothing to do with FreeBSD. It is related to > electric schematic and interface standards. If you need > hot swap try: SCSI, USB, FireWire??? drives. > Regards, > Artem > > > Is there any way to get FreeBSD to add/remove an IDE device from a > > running system? > > > > I'm experimenting with a $15 removable IDE hard drive kit. I would > > ideally like to be able to power down the drive, remove it, insert > > a new drive (possibly a different manufacturer/capacity), power it > > up, and force FreeBSD to recognize the new IDE device. > > Is this possible? > > I assume I can swap identical drive models endlessly, and FreeBSD > would > > be none the wiser. However, two years down the road, it will be > impossible > > to replace a broken drive with the identical model. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message