From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <8ea6a210ff3a1dccd1ba45e51fe924f2@coraid.com> To: 9fans@cse.psu.edu Subject: Re: [9fans] Xen for Windows(Was:vmware 5.0) From: Brantley Coile Date: Sun, 28 Aug 2005 08:04:34 -0400 In-Reply-To: <6a65a8b751540b784b8cbff84466ad36@hera.eonet.ne.jp> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="upas-yqwhhlrwwsmgwydffvkaikddwc" Topicbox-Message-UUID: 7f3c995e-ead0-11e9-9d60-3106f5b1d025 This is a multi-part message in MIME format. --upas-yqwhhlrwwsmgwydffvkaikddwc Content-Disposition: inline Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit i too am both curious as to the motivations for VM and completely open minded with no preconceived notions about VM. except my aversion to hype. but hype is independent from the quality of an idea. i was asking Friday here at work, what are the modivations behind VM? the only answers that were offered were variations on the ability to rent someone a machine that has root access without having as many machines are renters. the earliest VM i know of is VM/CMS, from IBM, which is still used today. its purpose was to provide early timesharing, and was also used to debug MVS. so those are two motivation, although Xen can't be used for debugging OSes since it's a paravirtual machine. i don't think VMware would be too good either because it rewrites parts of your code. maybe that's not a problem in practice. maybe Ron can give us insight into the motivations for using VM. --upas-yqwhhlrwwsmgwydffvkaikddwc Content-Type: message/rfc822 Content-Disposition: inline Received: from mail.cse.psu.edu ([130.203.4.6]) by coraid.com; Sat Aug 27 21:23:36 EDT 2005 Received: from psuvax1.cse.psu.edu (localhost [127.0.0.1]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id F33B5C6A0A for ; Sat, 27 Aug 2005 21:23:28 -0400 (EDT) X-Original-To: 9fans@cse.psu.edu Delivered-To: 9fans@cse.psu.edu Received: from localhost (localhost [127.0.0.1]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id E12E563BAA for <9fans@cse.psu.edu>; Sat, 27 Aug 2005 21:23:14 -0400 (EDT) Received: from mail.cse.psu.edu ([127.0.0.1]) by localhost (psuvax1 [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 25338-01-30 for <9fans@cse.psu.edu>; Sat, 27 Aug 2005 21:23:13 -0400 (EDT) Received: from smtp-o04.eonet.ne.jp (smtp-o04.eonet.ne.jp [203.140.81.19]) by mail.cse.psu.edu (CSE Mail Server) with SMTP id B90D563B26 for <9fans@cse.psu.edu>; Sat, 27 Aug 2005 21:23:12 -0400 (EDT) Received: (qmail 11431 invoked from network); 28 Aug 2005 10:23:11 +0900 Received: from unknown (HELO AA0000-MIMS11s.eo.k-opti.ad.jp) by aa0000-moms14d4 with SMTP; 28 Aug 2005 10:23:11 +0900 Received: (qmail 4823 invoked from network); 28 Aug 2005 10:23:11 +0900 Received: from unknown (HELO surveyor.jitaku.localdomain) (219.122.182.95) by aa0000-mims11s with SMTP; 28 Aug 2005 10:23:11 +0900 Message-ID: <6a65a8b751540b784b8cbff84466ad36@hera.eonet.ne.jp> To: 9fans@cse.psu.edu Subject: Re: [9fans] Xen for Windows(Was:vmware 5.0) Date: Sun, 28 Aug 2005 10:22:55 +0900 From: kokamoto@hera.eonet.ne.jp In-Reply-To: <1f70eed92820114027bf6274a290ead3@hera.eonet.ne.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Virus-Scanned: by amavisd-new at cse.psu.edu X-BeenThere: 9fans@cse.psu.edu X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu> List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: 9fans-bounces+brantley=coraid.com@cse.psu.edu Errors-To: 9fans-bounces+brantley=coraid.com@cse.psu.edu Content-Transfer-Encoding: quoted-printable Last night I must have been too sleepy. I can't read my own posting this morning.=E2=98=BA Then, I'll try once more. > if you just want to run only Plan9. Actually, I never understand such kind of attempts. What is the merit to use mutiple OSs on a machine? >>From a bad humor sense, I can realize it only for saving power... Once, I thought it'd be nice if I could use Xen for Linux and Plan 9 web server to use UTF-8 encoded our page. However, I realized it not so essential after that. Now, I'm thinking like this: if I need=20 Windows, let's have a machine for it. If I need Plan 9 let's have=20 three machine for it, etc. Machines are cheeper these days,=20 so it must be only for saving power for mother earth.=E2=98=BA Better? I'm not offending the one machine model for Plan 9 from the view point of more convenience to more people. However, I think=20 Geoff's effort should be payed more attention by more Plan 9ers. Ken ji --upas-yqwhhlrwwsmgwydffvkaikddwc--