Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964816AbWC1XH3 (ORCPT ); Tue, 28 Mar 2006 18:07:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964812AbWC1XH2 (ORCPT ); Tue, 28 Mar 2006 18:07:28 -0500 Received: from watts.utsl.gen.nz ([202.78.240.73]:52365 "EHLO watts.utsl.gen.nz") by vger.kernel.org with ESMTP id S964816AbWC1XHZ (ORCPT ); Tue, 28 Mar 2006 18:07:25 -0500 Subject: Re: [RFC] Virtualization steps From: Sam Vilain To: Bill Davidsen Cc: Kirill Korotaev , Dave Hansen , "Eric W. Biederman" , linux-kernel@vger.kernel.org, herbert@13thfloor.at, devel@openvz.org, serue@us.ibm.com, akpm@osdl.org, Alexey Kuznetsov , Pavel Emelianov , Stanislav Protassov In-Reply-To: <44294B33.3040507@tmr.com> References: <44242A3F.1010307@sw.ru> <44242D4D.40702@yahoo.com.au> <1143228339.19152.91.camel@localhost.localdomain> <4428BB5C.3060803@tmr.com> <4428FB2B.8070805@sw.ru> <44294B33.3040507@tmr.com> Content-Type: text/plain Date: Wed, 29 Mar 2006 11:07:38 +1200 Message-Id: <1143587258.6325.59.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.4.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1401 Lines: 30 On Tue, 2006-03-28 at 09:41 -0500, Bill Davidsen wrote: > > It is more than realistic. Hosting companies run more than 100 VPSs in > > reality. There are also other usefull scenarios. For example, I know > > the universities which run VPS for every faculty web site, for every > > department, mail server and so on. Why do you think they want to run > > only 5VMs on one machine? Much more! > > I made no commont on what "they" might want, I want to make the rack of > underutilized Windows, BSD and Solaris servers go away. An approach > which doesn't support unmodified guest installs doesn't solve any of my > current problems. I didn't say it was in any way not useful, just not of > interest to me. What needs I have for Linux environments are answered by > jails and/or UML. We are talking about adding jail technology, also known as containers on Solaris and vserver/openvz on Linux, to the mainline kernel. So, you are obviously interested! Because of course, you can take an unmodified filesystem of the guest and assuming the kernels are compatible run them without changes. I find this consolidation approach indispensible. Sam. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/